Chloride Dioxide

Chloride Dioxide - Names and Identifiers

Name	Chloride Dioxide
Synonyms	ClO2 doxcide50 Doxcide 50 chlorylradical dioxydedechlore Chloryl radical Chloride Dioxide Chlorine Dioxide chlorosyloxidanyl chloroperoxyl[qr] chlorylradical[qr]
CAS	10049-04-4
EINECS	233-162-8
InChI	InChI=1/ClO2/c2-1-3

Chloride Dioxide - Physico-chemical Properties

Molecular Formula	ClO2
Molar Mass	67.45
Density	3.09g/L
Melting Point	-59°C
Boling Point	11°C
Water Solubility	Soluble ºC
Vapor Presure	0-22900Pa at 20-25℃
Appearance	orange-green gas
Exposure Limit	TLV-TWA 0.1 ppm (0.3 mg/m3); (ACGIH,MSHA, OSHA, and NIOSH); TLV-STEL0.3 ppm (ACGIH); IDLH 10 ppm (NIOSH).
Stability	May decompose explosively on shock, friction or concussion, or on heating rapidly. Strong oxidant - reacts violently with combustible and reducing materials, and with mercury, ammonia, sulphur and man
Physical and Chemical Properties	Melting Point -59°C boiling point 11°C water Soluble
Use	Used for sterilization, algae elimination and slime stripping of circulating cooling water in petrochemical plants, synthetic ammonia plants and oil refineries, etc., and hotel air conditioning cooling water system

Chloride Dioxide - Risk and Safety

Risk Codes	R6 - Explosive with or without contact with air R8 - Contact with combustible material may cause fire R26 - Very Toxic by inhalation R34 - Causes burns R50 - Very Toxic to aquatic organisms
Safety Description	S23 - Do not breathe vapour. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S38 - In case of insufficient ventilation, wear suitable respiratory equipment. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets.
UN IDs	UN 9191

Chloride Dioxide - Upstream Downstream Industry

Raw Materials

Sulfuric acid
Sodium Chloride
Sodium Chlorate
Sodium bicarbonate
SODIUM CHLORITE

Chloride Dioxide - Nature

Open Data Verified Data

chlorine dioxide is a gas from yellow-green to orange at room temperature and has the same pungent odor as chlorine. Melting Point -59 °c; Boiling point 11 °c; do (liquid) 642. The solubility of chlorine dioxide in water is 5 times that of chlorine, 20 ℃, 10 kPa partial pressure 8.3g/L 25 ℃, 34. 5mmHg (1 mmHg = 133. 322PA) dissolved in water 3. Olg/L. Dissolve in water to a yellow solution. Unlike chlorine, it does not hydrolyze in water and does not polymerize. It exists as a dissolved gas in the range of pH 2 to 9 and has a certain volatility. Chlorine dioxide is dissolved in an aqueous solution containing sodium carbonate, sodium percarbonate, borate and perborate, and is stable at a concentration of a few percent. This is a so-called stable C102 solution. The solution is colorless or light yellow, tasteless, odorless transparent solution, non-flammable, non-volatile, not easy to decompose, stable nature, can be stored at -5~95 C for 2 years without denaturation. But neither liquid nor gas is stable. Chlorine dioxide is a very active compound, a little heat, will rapidly decompose into chlorine and oxygen explosion.

Last Update：2024-01-02 23:10:35

Chloride Dioxide - Preparation Method

Open Data Verified Data

chlorine dioxide is extremely unstable, explosive and cannot be stored or transported by any means, and therefore must be manufactured at the site of use. C102 is prepared by chemical and electrochemical methods. The chemical method is prepared by reducing chlorate with different reducing agents in strong acid medium or oxidizing chlorite with oxidizing agent in acidic medium. The electrochemical method is prepared by direct electrolysis of chlorite or chlorate.

Last Update：2022-01-01 08:52:56

Chloride Dioxide - Use

Open Data Verified Data

as a strong oxidant, chlorine dioxide can effectively destroy trace organic pollutants in water, such as benzopyrene, anthraquinone, chloroform, carbon tetrachloride, phenol, chlorophenol, cyanide, hydrogen sulfide and organic sulfide, chlorination reaction does not occur when organic compounds are oxidized. C102 has been used for drinking water treatment for more than half a century in the United States due to its high efficiency, safety and non-toxicity. Chlorine dioxide has a stronger biocidal ability than chlorine, about 2.5 times that of chlorine, and is especially suitable for use in ammonia plants to replace chlorine for sterilization and algae killing. It can kill all Hui organisms, including bacterial propagules, bacterial spores, fungi, mycobacteria and Virus. Chlorine dioxide has strong adsorption and penetration ability to microbial cell wall, which can effectively oxidize the enzyme containing thiol group in cells, and can also rapidly inhibit the synthesis of microbial protein to destroy microorganisms. As a strong oxidant, it also has in addition to algae, mud stripping, anti-corrosion, anti-mildew, preservation, deodorization, chlorination and bleaching and other functions. This product is mainly used for industrial circulating water, tap water, cooling water, swimming pool, oilfield injection well water, urban sewage and industrial wastewater sterilization, can quickly kill microorganisms, protozoa and algae in water, reduce shellfish deposition, removal of carcinogens from water. It can also be used for tableware Disinfection, refrigerator deodorization, automobile deodorization Disinfection, pulp bleaching, leather hair removal, fruit preservation, aquaculture, food and beverage addition. And in the family, hotel, hospital and pharmaceutical industry and other fields also have a wide range of applications.

Last Update：2022-01-01 08:52:57

Chloride Dioxide - Safety

Open Data Verified Data

chlorine dioxide is more irritating and toxic than chlorine, and the toxicity is 40 times that of chlorine. Air in the volume concentration of more than 10% is explosive, but in aqueous solution is very safe. Toxic and irritant, can be severely burned skin and respiratory mucosa, inhalation, can lead to lung edema. Experiments show that it has damage to red blood cells, interference with the absorption and metabolism of iodine, and easily lead to elevated cholesterol in the blood. In the production and use, can not contact with organic matter, so as to avoid explosion.

Last Update：2022-01-01 08:52:57

Chloride Dioxide - Reference Information

LogP	-3.22--2.9 at 20℃
NIST chemical information	information provided by: webbook.nist.gov (external link)
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Introduction	stable chlorine dioxide CLO2 is a broad-spectrum, efficient, non-toxic new germicidal disinfectant, it has been widely used in many fields. Compared with chlorine, its killing ability is 3~5 times higher, and its killing effect is basically not affected by pH value, with a sustained inhibitory effect. It is safe, non-toxic, no side effects on the human body, treated water without odor, no carcinogens, is internationally recognized as the most ideal alternative to chlorine disinfectants.
History	chlorine dioxide was discovered in 1814 by Sir Thompson Y using potassium chlorate (KClO3) the yellow-Green gas produced after the reaction with sulfuric acid is therefore called Green-yellow gas euchlorine. In 1843, Millon reacted potassium chlorate with hydrochloric acid to generate yellow-green gas, which was collected in an alkaline solution to obtain chlorite ion and chlorate ion. Since the resulting gas was not detected for chlorine dioxide at that time. It was not until the study in 1881 Garzarolli-Thumlackh that the gas obtained by this method was really proved to be a mixed gas of chlorine dioxide and chlorine. Chlorine dioxide was discovered very early, but it was not widely used until the commercial product of sodium chlorite, manufactured by Mathiason chemical corporation in 1939, was gradually popularized. Chlorine dioxide is mainly used in pulp bleaching process in paper mills and in the purification of water in sewage treatment plants to control the classification and removal of odor generated by organic compounds. Later, it was slowly found that chlorine dioxide has strong oxidation characteristics, easy to volatilize, not easy to produce harmful substances with organic matter, such as trihalomethanes and residues. As a result, the U. S. Environmental Protection Agency (EPA) in Disinfection began to accept the application of packaged drinking water in, the U, the USEPA and The USFDA have since accepted their use in agriculture, industry and food.
application range	Application Range of chlorine dioxide: edible fungus, ground ring, silver bar, bamboo shoot, lotus seed, melon seed, Yuba, konjac, radish, fish, meat, aquatic products, vegetables, fruits, dairy products, beverage bleaching preservation, flour bleaching.
toxicity	chlorine dioxide is harmful to human body. Its toxicity is similar to chlorine gas, and it can attack eyes and respiratory organs. In the case of high concentration, the central nervous system is lethal. The allowable concentration in air is 0.3 mg/m3. If inhaled, transfer to clean air immediately. If you accidentally splash in the eyes, rinse thoroughly with water. Work clothes, rubber aprons, latex gloves and personal protective masks must be worn before work. In the work, the production equipment is required to be sealed and well ventilated. Be sure to take a shower after work.
Usage	1. Pretreatment: the need to bleach food soaked in water, desalting 24 hours or foaming, the flow of water for the best (salt-free food can be omitted from this process). 2. Preparation of concentrated liquid: add 1000g of this product powder to 25kg of water and stir until it is completely dissolved, then put it into a sealed plastic barrel and put it in a cool place for standby (shelf life of 12 months). 3. Configuration of bleaching liquid: weigh a certain amount of concentrated liquid and the corresponding weight of Activator (citric acid self-contained), mix and stir for 10-20 minutes, and then add water and dilute it according to the table. 4. Bleaching: weigh the corresponding weight of food into the bleaching liquid, bleaching to the desired whiteness, you can remove, bleaching liquid temperature control at 40-50 ℃ bleaching effect is the best, the fastest.
Use	mainly used for bleaching of pulp and paper, fiber, wheat flour, starch, oil, refining and bleaching of beeswax, etc. Disinfection bactericidal treatment of drinking water. chlorine dioxide can be used as a bactericide in the processing of fish with the dosage of 0.05g/kg (aqueous solution) and 0.01% in the preservation of vegetables and fruits. used in industrial water treatment, as a germicidal disinfectant. It can also be used for bleaching of pulp and fiber, scouring of flour, oil and sugar, depilation of leather, etc. stable chlorine dioxide is a new disinfectant used in circulating water system, which can kill microorganisms, protozoa and algae in water and remove nitrite in water. Disinfection sterilization for pearl farming. The prawn was treated with ice containing 20 × 10-6 stable chlorine dioxide, so that the prawn would not turn black, and the preservation effect was good. The lettuce and snail were treated by soaking for Disinfection to be sterile. Can be used for tableware Disinfection, refrigerator deodorization, contact lens Disinfection, rice bran oil purification, car deodorization Disinfection. It is widely used in food and beverage, hospital and pharmaceutical industries. The stable chlorine dioxide liquid is made into solid, colloid, particle, microencapsulated powder and sustained-release solid by using carrier abroad, and then mixed with other auxiliary materials. Chlorine dioxide germicidal detergents have been developed in Japan. used for sterilization, algae elimination and slime stripping of circulating cooling water system of petrochemical plant, synthetic ammonia plant and refinery and hotel air conditioning
production method	There are many methods for the production of stable chlorine dioxide due to different production processes and raw materials. Generally, chlorine dioxide of relatively high purity is prepared first, and then the chlorine dioxide is absorbed into an aqueous solution containing a stabilizer to form a stabilized chlorine dioxide aqueous solution. In recent years, solid chlorine dioxide has been developed in the United States and Japan. Sulfuric acid-sodium chlorate method to sodium chlorate and sodium chloride molar ratio of 1:1.05 of the mixed aqueous solution into the reactor, and then add 98% sulfuric acid, at 35 deg C for reaction, generated chlorine dioxide and chlorine, driven out by air. The mixed gas of chlorine dioxide and chlorine generated by the reaction is sent to a chlorine dioxide absorption tower, and is convective absorbed with an aqueous solution containing a stabilizer to generate a stabilized chlorine dioxide aqueous solution. The undissolved chlorine gas of NaC1O3 + NaCl + H2SO4 → C1O2 +0.5C12 + Na2SO4 + H2O enters the chlorine absorption tower and is absorbed by alkali solution to generate sodium hypochlorite. Hydrochloric acid sodium chlorite method sodium chlorite dissolved in water with appropriate concentration of solution into the reactor, the hydrochloric acid according to the appropriate ratio of ingredients in the stirred reactor reaction, the generation of chlorine dioxide gas, driven out by air. The generated chlorine dioxide gas is sent to a chlorine dioxide absorption tower, and convective absorption is performed with an aqueous solution containing a stabilizer to generate a stabilized chlorine dioxide aqueous solution. The adsorption method of NaC1O2 + HCl → C1O2 + NaC1 +0.5H2 uses porous substances such as calcium silicate, molecular sieve and silica gel as adsorbents to adsorb chlorine dioxide in solution and then change into solid chlorine dioxide. According to the new Markov method, a sodium chlorate solution (600g/L) and sulfuric acid (95% to 98%) were continuously and quantitatively fed from below the liquid level to the reactor. The air of the diluted 5% to 8 wt% sulfur dichloride gas through the gas distribution plate into the reactor. In order to improve the yield, generally use two reactors, the first reactor temperature 30~40 ℃, sodium chlorate content 20~22g/L, sulfuric acid 9.0mol/L, sodium chloride 5~6/L, the second reactor temperature is 40~45 ℃, the sodium chlorate content of 2G/L, sulfuric acid 9.3mol/L sodium chloride 7g/L. The gas generated from the reactor enters the gas scrubber, and after washing the entrained sulfuric acid, hydrochloric acid and unreacted sulfur dioxide in the gas with sodium chlorate solution, it enters the absorption tower and is absorbed with cold water, A chlorine dioxide aqueous solution of 6-8g/L was prepared. The mixed aqueous solution of sodium chlorate and sodium chloride is fed to the reactor in a molar ratio of 1: 1.05, and sulfuric acid (98%) is added to carry out the reduction reaction at 35~55 °c, with amino acid salt as raw material, chlorine dioxide is prepared by reduction in acidic medium. Due to the difference of reducing agent, it can be divided into: sulfur dioxide method, in which there is a new Markov method, new large Cao method; Hydrochloric acid method, including the kestatin method; Salt method, including R2 method, R3(SVP method). At present, there are many methods in industrial production, such as the new Markov method, R2 method, R3 method and kestatin method. R8 method is a new method developed in the mid-Eighties. 1. The 600g/L sodium chlorate solution and 95% ~ 98% sulfuric acid are continuously and quantitatively fed into the reactor by the new Markov method, and 5~8% sulfur dioxide gas diluted by air enters the reactor through a gas distributor plate. The reactor has two, the first reactor at a temperature of 30~40 ℃, and reaction most of this, using the second reactor can be increased sodium perchlorate of utilization. The gas generated in the reactor is sent to the gas scrubber, and the chlorine dioxide gas is sent to the absorption tower and absorbed with cold water to prepare a 6-8g/L chlorine dioxide aqueous solution. The waste liquid overflowing from the second reactor enters the gas stripping tower, and a small amount of air is introduced from the bottom of the tower to extract chlorine dioxide dissolved in the solution. The gas enters the chlorine dioxide absorption tower through the gas washing Tower and is absorbed by cold water, an aqueous solution of chlorine dioxide was prepared. The waste liquid discharged from the gas stripping column can be recycled. The reaction formula is as follows: 2Na2ClO3 + SO2 + H2SO4 → 2ClO2+2Na2SO4 10 H22. The chlorine dioxide and sodium chloride are prepared by reducing sodium chlorate with hydrochloric acid by kestatin method, and sodium chloride is then electrolyzed to make sodium chlorate. The solution coming out of the electrolyzer contains 360 ~ 32% g/L of sodium chlorate and 8O ~ g/L of sodium chloride, which is added into the first reactor at the same time as hydrochloric acid. The overflow passes through the sixth reactor, and the reactor temperature is 20, 40, 60, 80, 100, 103 C, the hydrochloric acid and sodium chlorate reaction. From the last third reactor pass into the air, the reaction solution was stirred and dilute the reaction of chlorine dioxide gas by chlorine dioxide absorption tower with cold water absorption generated chlorine dioxide solution. The chlorine gas which is not absorbed is absorbed with the alkali solution to prepare the sodium hypochlorite solution. The reaction formula is as follows: NaC1O3 +2HC1 → ClO2 +0.5Cl2 + NaCl + H2O3.R2 method the mixed aqueous solution of sodium chlorate and oxidation pin molar ratio of 1:1.05 was added to the reactor, then 98% sulfuric acid was added, and the reaction was carried out at 35~55 ℃, the generated chlorine dioxide and hydrogen by the air expelled. The reaction of chlorine dioxide and hydrogen gas mixture into the chlorine dioxide absorption tower water convection absorbed chlorine dioxide generating aqueous solution from soluble chlorine is entered chlorine absorption tower with the alkaline solution with generation of sodium hypochlorite. The reaction formula is as follows: NaC1O3 ten NaCl ten H2SO4 → ClO2 ten 0.5Cl2 ten Na2SO4 ten H2O waste liquid discharged from the Gas Stripping Tower contains mirabilite and sulfuric acid, which can be used for the production of kraft pulp. The reaction of chlorine dioxide production by R3 method is basically the same as that by R2 method. A key to this is unique of chlorine dioxide generator, reduced pressure may be obtained at a concentration of 36% of the product. In ordinary atmospheric process so that the concentration of the explosion. The generator the bottom of a reaction product solution in sodium sulfate crystal slurry with sodium and sodium chloride mixed feed, and then boiled with sulfuric acid is further mixed from the top into the generator. The chlorine dioxide and chlorine gas produced by the reaction are diluted by a small amount of air, and then flow into the condenser together, and enter the absorption tower after cooling. The generated chlorine dioxide solution contained ClO2 8g/L. The reaction formula is as follows: NaC1O3 ten NaCl ten H2SO4 → ClO2 ten 0.5Cl2 ten Na2SO4 ten H2O in order to prevent explosion, the pressure of the whole system is maintained at a low pressure of 26.66-39.99kPa, thus maintaining the stability of the mixture. R8 method and R3 method is basically the same, using methanol as a reducing agent to produce chlorine dioxide, by-product of mirabilite production than R3 to be less. The raw material industrial sodium chlorate. Fuming sulfuric acid, methanol and sodium chloride in a special container (reaction-evaporation-crystallization as one of the unit reactor) chlorine dioxide generator, when the system temperature (70+4)℃ in 13.32kPa under reduced pressure, the reaction medium acidity control of 4 to 5mol, sodium chlorate with methanol mole ratio of 4:1, produced by the reaction of chlorine dioxide flows into the condenser, the cooled to go to chlorine dioxide absorption tower, to generate chlorine dioxide solution containing ClO2 8~10g/L. Its formula is as follows: 4NaCl +4H2SO4 + CH3OH → 4ClO2+4NaHSO4 + HCOOH + 3H2O consumption (t/t) sodium chlorate (NaCIO 398.5%) 1.65~1.7 1.63 1.17~1.57 1.66 1.64 sulfuric acid (H2SO 498%) 1.38~2.5 - 4.8~5.5 1.6~1.7 1 hydrochloric acid (HCl 100%)-1.5-sulfur dioxide (SO 299.7%) 0.54~0.64-sodium chloride (NaCl 90%) 0.09~0.34 - 0.95 0.95-methanol (HCOOH) -0.19 ClO2 process for the production of a lot here only sulfuric acid. That is, the reduction of sodium chlorate with SO2 in sulfuric acid medium can generate chlorine dioxide gas: 2NaClO3 + SO2 → 2ClO2 + Na2SO4 sodium chlorate solution (95% g/L) and sulfuric acid (98% ~) the first reactor is fed continuously and quantitatively from below the liquid level, and 5% to 8% SO2 gas diluted by air is fed to the first and second reactors, respectively. Reaction most in the first reactor is carried out at a temperature of 30~40 ℃, the sodium chlorate concentration of 20~22g/L, 9.0g/L of sulfuric acid, sodium chloride 5~6g/L. The first reactor overflow of the reaction still contains a small amount of sodium chlorate in the second reactor and SO2 full reaction temperature of 40~45 ℃, the sodium chlorate concentration of 2g/L, 9.3g/L of sulfuric acid, sodium chloride 7g/L. The waste liquid overflowing from the second reactor enters the gas stripping column, and the chlorine dioxide dissolved in the waste liquid is recovered by gas stripping with a small amount of air. Waste liquid can be recovered by-products such as sodium sulfate. The stripping gas returns to the second reactor, second reactor to generate chlorine dioxide and unreacted SO2 is returned to the first reactor. The first reactor produced gas into the scrubbing tower, sodium chlorate solution from the scrubbing tower upper portion of the removal of chlorine dioxide gas is entrained in the sulfuric acid, hydrochloric acid and unreacted SO2 after entering the first reactor. Chlorine dioxide gas is sent in the absorption tower with cold water absorption, made of 6 ~ 8g/L of chlorine dioxide solution. to chlorate as raw material, in an acidic medium reduction to produce chlorine dioxide due to the reducing agent of different, can be divided into: 1. Sulfur dioxide method, of which there are the new Mathson method, the new large Cao method; 2. Hydrochloric acid method, of which there is the kestatin method; 3. Salt method, including R2 method, R3 method (SVP method). The current industrial production and application of a large number of methods are new Marty-method R2, R3, open sting method. R8 method is a new method developed in the mid-Eighties. New Marty-method, containing 600g/L sodium chlorate solution with 95% ~ 98% sulfuric acid continuous quantitatively fed to the reactor through air dilution of 5% to 8 wt% sulfur dioxide gas through the gas distribution plate into the reactor. The reactor has two, the first reactor at a temperature of 30~40 ℃, and reaction most of this, using the second reactor can improve the sodium chlorate of utilization. The reactor of the gas supplied to the scrubber, the chlorine dioxide gas is fed into the absorption tower with cold water absorption, made of 6-8g/L aqueous chlorine dioxide solution. The second reactor overflow of waste into the stripping column, from the bottom of the column into a small amount of air to dissolved in the solution of chlorine dioxide, the gas passes through the scrubber tower into chlorine dioxide absorption tower with cold water absorption, made of aqueous chlorine dioxide solution. From the stripping column discharged waste recyclable. Its 2Na2C1O3 + SO2 + H2SO4 → 2C1O2+2Na2SO4 + H2 open sting method with hydrochloric acid reduction sodium chlorate produced chlorine dioxide and sodium chloride, sodium chloride and then electrolytic made of sodium chlorate. From the electrolytic cell out of the solution containing sodium chlorate 360 ~ 400g/L sodium chloride (80-100g/L, and 32% hydrochloric acid at the same time is added to the first reactor overflow to pass through to the sixth reactor, the reactor temperature was 20, 40, 60, 80, 100, 103 ℃, hydrochloric acid and sodium chlorate full reaction. From the last third reactor human air stirring the reaction solution and dilute the reaction of chlorine dioxide gas by chlorine dioxide absorption tower with cold water absorption generated chlorine dioxide solution. The unabsorbed chlorine gas with the alkaline solution, made of sodium hypochlorite solution. Its NaC1O3 + 2HCl → C1O2 +0.5C12 + NaCl + H2OR2 method sodium and sodium chloride in a molar ratio of 1:1.05 of the mixed aqueous solution was added to the reactor, then add 98% sulfuric acid, 35-55 ℃ to carry out the reaction, the generation of chlorine dioxide and chlorine by air is expelled. The reaction of chlorine dioxide and chlorine of the mixed gas into the chlorine dioxide absorption tower water convection absorbed chlorine dioxide generating aqueous solution, The undissolved chlorine is entered chlorine absorption tower with the alkaline solution with generation of sodium hypochlorite. Its NaClO3 + NaCl + H2SO4 → C1O2 +0.5C12 + Na2SO4 + H2O stripper discharge of waste liquid containing sodium sulfate and sulfuric acid for kraft pulp production purposes. R3 methods in the production of chlorine dioxide with the response of the R2 method are basically the same for logs. A key to this is unique of chlorine dioxide generator, reduced pressure may be obtained at a concentration of 36% of the product. In ordinary atmospheric process so that the concentration of the explosion. The generator the bottom of a reaction product solution in sodium sulfate crystal slurry with sodium and sodium chloride mixed feed, and then boiled with sulfuric acid is further mixed from the top into the generator. Produced by the reaction of chlorine dioxide and chlorine is a small amount of air after dilution with flows into the condenser, the cooled backward people absorption tower. To generate chlorine dioxide solution containing C1O2 8g/L. Its NaC1O3 + NaCl + H2SO4 → C1O2 +0.5C12 + Na2SO4 + H2O in order to prevent explosion, full system pressure was maintained at 26.66~39.99 kPa of low pressure so that to maintain the stability of the mixture. R8 methods and R3 method are basically the same for logs, methanol is used as the reducing agent in producing chlorine dioxide, the by-product of Glauber's salt than R3 method less. The raw material industrial sodium chlorate, fuming sulfuric acid, methanol and sodium chloride in a special container (reaction-evaporation-crystallization as one of the unit reactor) chlorine dioxide generator, when the temperature of the system (70±4)℃, at 13.32 kPa under reduced pressure, pH control 4-5 mol sodium chlorate with methanol mole ratio of about 4:l, produced by the reaction of chlorine dioxide, the flow of human condenser, after cooling to chlorine dioxide absorption tower to generate chlorine dioxide solution containing C1O2 8~10g/L. Its 4NaC1O3+4H2SO4 + CH3OH → 4C1O2+4NaHSO4 + HCOOH + 3H2O
category	explosive articles
toxicity grade	high toxicity
Acute toxicity	oral-rat LD50: 292 mg/kg; Inhalation-rat LCL0: 500 PPM/15 min
stimulation data	eyes-rabbit 100 mg mild
explosive hazard characteristics	Mars, impact, sunlight, high temperature sensitive explosion above 100 ℃; And CO, hydrocarbons, fluoroamine mixed explosion
flammability hazard characteristics	reaction with water, or water vapor to generate toxic corrosive hydrogen chloride gas; With non-metals, such as phosphorus, sulfur, etc., combustion; Thermal decomposition of toxic chloride smoke
storage and transportation characteristics	low temperature ventilation and drying of the warehouse; Fire prevention, high temperature prevention, light handling, and oxidant, separate storage of food raw materials
fire extinguishing agent	carbon dioxide, foam, dry powder
Occupational Standard	TWA 0.28 mg/m3; Tel 0.84 mg/m3
toxic substance data	information provided by: pubchem.ncbi.nlm.nih.gov (external link)
immediate life-and health-threatening concentration	5 ppm

Last Update：2024-04-09 02:00:04

Saian Chemical (Shanghai) Co.,Ltd

Chloride Dioxide

Chloride Dioxide

CAS: 10049-04-4

Molecular Formula: ClO2

Chloride Dioxide - Names and Identifiers

Chloride Dioxide - Physico-chemical Properties

Chloride Dioxide - Risk and Safety

Chloride Dioxide - Upstream Downstream Industry

Chloride Dioxide - Nature

Open Data Verified Data

Chloride Dioxide - Preparation Method

Open Data Verified Data

Chloride Dioxide - Use

Open Data Verified Data

Chloride Dioxide - Safety

Open Data Verified Data

Chloride Dioxide - Reference Information

Supplier List

Chloride Dioxide Request for Quotation

Chloride Dioxide

CAS: 10049-04-4

Molecular Formula: ClO2

Chloride Dioxide - Names and Identifiers

Chloride Dioxide - Physico-chemical Properties

Chloride Dioxide - Risk and Safety

Chloride Dioxide - Upstream Downstream Industry

Chloride Dioxide - Nature

Open Data Verified Data

Chloride Dioxide - Preparation Method

Open Data Verified Data

Chloride Dioxide - Use

Open Data Verified Data

Chloride Dioxide - Safety

Open Data Verified Data

Chloride Dioxide - Reference Information

Supplier List

Chloride Dioxide