83138-28-7
Charcoal
CAS: 7440-44-0;16291-96-6;90597-58-3;90452-98-5;83138-28-7;82600-5;64365-11-3;1333-85-3
Molecular Formula:
83138-28-7 - Names and Identifiers
83138-28-7 - Physico-chemical Properties
| Molar Mass | 12.01 |
| Density | ~1.7g/mLat 25°C(lit.) |
| Melting Point | 3550°C(lit.) |
| Boling Point | 500-600°C(lit.) |
| Flash Point | >230°F |
| Vapor Presure | <0.1 mm Hg ( 20 °C) |
| Appearance | rod |
| Physical and Chemical Properties | Density 1.8 melting point 3500°C |
| Use | There are activated carbon for injection, activated carbon for gas phase adsorption, activated carbon for solvent recovery, etc., which can be used for Desulfurization, Water Purification, air purification, solvent recovery, adsorption, catalyst and as a catalyst carrier. |
83138-28-7 - Risk and Safety
| Risk Codes | R36/37 - Irritating to eyes and respiratory system. R18 - In use may form flammable/explosive vapor-air mixture R11 - Highly Flammable |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | UN 1325 4.1/PG 3 |
| WGK Germany | 3 |
| RTECS | FF5250100 |
| Hazard Class | 4.1 |
| Packing Group | III |
83138-28-7 - Upstream Downstream Industry
| Raw Materials | Bitumen Coal Tar |
| Downstream Products | Sodium thiosulfate Ammonium sulfate Carbon Dioxide 4,4'-oxybisbenzenamine Fumaric acid Glycine L-Cystine L-Alanine |
83138-28-7 - Nature
Open Data Verified Data
black amorphous granules or fine powders. Odorless. Tasteless. Is a porous material, large specific surface area, strong attachment, can desulfurization, benzene removal, deodorization, decolorization, but also can selectively remove some chemical impurities in the liquid phase or gas phase, it has high capacity adsorption capacity for organic pigments and nitrogen-containing bases. The specific surface area is 500-1000 m2/g, and the relative density is about 1. 9-2.1I. The apparent relative density is about 0. 08-0. 45. Stable in nature, insoluble in water and any solvents. It can react with strong oxidizing agents such as oxygen, chlorine and dichromate at high temperature.
Last Update：2024-01-02 23:10:35
83138-28-7 - Preparation Method
Open Data Verified Data
ordinary charcoal after grinding, burning, adding nitric acid, after standing, boiling, filtering, washing, then adding distilled water boiling, drying at 110 ℃, the resulting product was treated with nitric acid and dried, and then burned at 600 to 800 ° C. After cooling and drying.
Last Update：2022-01-01 09:01:36
83138-28-7 - Standard
Authoritative Data Verified Data
This strain is made of charcoal, various fruit shells and high quality coal as raw materials, through physical and chemical methods for raw materials crushing, sieving, Catalyst activation, rinsing, A series of processes such as drying and screening are processed to produce porous and loose substances with strong adsorption capacity.
Last Update：2024-01-02 23:10:35
83138-28-7 - Trait
Authoritative Data Verified Data
This product is black powder, odorless, tasteless; No sand.
Last Update：2022-01-01 11:24:17
83138-28-7 - Use
Open Data Verified Data
used as a reducing agent for measuring methanol, tin, and silicon. In many adsorbents, decolorizing agents.
Last Update：2022-01-01 09:01:36
83138-28-7 - Differential diagnosis
Authoritative Data Verified Data
take this product O .lg, placed in a heat-resistant glass tube, while slowly introducing compressed air, at the glass tube where the sample is placed, heat and burn with an alcohol lamp (note that an open flame should not be generated), the generated gas is passed into the calcium hydroxide test solution to generate a white precipitate.
Last Update：2022-01-01 11:24:17
83138-28-7 - Exam
Authoritative Data Verified Data
pH
take this product 2 .5G, add water 50m l, boil for 5 minutes, let cool, filter, filter residue washed with water, combine filtrate and wash solution to make 50ml, the filtrate should be clear, encounter litmus test paper should be neutral reaction.
chloride
take 10ml of the filtrate under pH, dilute it with water to 2 0 m l, and shake it well; Take 20 m l for inspection according to law (General rule 0801), with standard sodium chloride solution 5. Compared with the control solution made of 0 M l, it should not be more concentrated (0. 1%).
sulfate
Take 20ml of the remaining filtrate under the pH item, check according to law (General Rule 0 8 0 2 ) , and standard potassium sulfate solution 5. Compared with the control solution made of 0M l, it should not be more concentrated (0. 05).
uncarbonized
take this product 0 .2 5G, Add 10ml of sodium hydroxide solution, boil, filter; If the filtrate color, with the control solution (take 0.3ml gasification cobalt solution for color comparison, potassium dichromate solution 0 ,2 m l for color comparison, water 9-5ml mixed made) comparison, not deeper.
sulfide
take 0. 5g of this product, add water 20 M l and hydrochloric acid 5ml, boil, steam can not wet lead acetate test paper black.
cyanide
take 5 g of this product into a distillation flask, add 50ml of water and 2 g of tartaric acid, distill, and absorb the distillate with the absorption liquid placed in ice water bath. The absorption liquid is 2m l of sodium hydroxide test solution and 10ml of water, about 25ml distillate was distilled out, diluted with water to 50ml, added with 12 drops of ferrous sulfate test solution, heated to almost boiling, and allowed to cool. Hydrochloric acid test solution lm l was added, and the solution should not be blue.
soluble in enzyme
take this product 2. O g, add 50ml of ethanol, boil and reflux for 10 minutes, immediately filter, dilute the filtrate with ethanol to 50ml, take 40ml of filtrate, and dry to constant weight, leaving residue not to pass 8 mg.
fluorescent substance
10. 0 G of the product was collected into a distillation flask, and 100ml of cyclohexane was added thereto, followed by distillation for 2 hours. The distillate was diluted to 100ml with cyclohexane, and used as a test solution. Take quinine, precision weighing, add 0 .0 0 5M o l/L sulfuric acid solution dissolved and quantitatively diluted into control solution containing 83ng quinine per lm l, according to UV-visible spectrophotometry (General Rule 0 4 0 1 ) , the absorbance of the test solution should be less than that of the control solution at 365nm.
dissolved in acid
take L O g of this product, add 20ml of water and 5ml of hydrochloric acid, boil for 5 minutes, filter, wash the filter residue with 10ml of hot water, combine the filtrate and lotion, add lm l of sulfuric acid, evaporate dry, the residue should not exceed 8mg.
loss on drying
take this product, in 1 20 t dry to constant weight loss of weight shall not exceed 10.0% (General rule 0831).
burning residue
take about 0.50g of this product, add 2~3 drops of ethyl yeast to wet it, and check it according to law (General Rule 0 8 4 1). The residue left shall not exceed 3 .0%.
Iron Salt
take this product 1.0g, add lm o l/L hydrochloric acid solution 25ml, boil for 5 minutes, let cool, filter, wash the residue with hot water 30ml, combine the filtrate and wash water to 100ml, shake well> take 5ml, put it in 50ml Nessler's colorimetric tube, and check it according to law (pass W 0807>, with standard iron solution 1. Compared with the control solution made of 0M l, it should not be deeper (0 .02%).
zinc salt
take this product l.O g, add water 2 5M l, boil for 5 minutes, let cool, filter, wash the residue with hot water 30ml, combine filtrate and wash, add water to 100ml, shake; Take 10ml with precision, put 50ml Nessler's colorimetric tube, add ascorbic acid 0 .5G, hydrochloric acid solution (l-2)4nJ and potassium ferrocyanide solution (3ml) were added, diluted to scale with water, and shaken. In case of turbidity, the mixture was mixed with standard zinc solution, put it in a 100ml measuring flask, add water to dissolve and dilute to the scale, shake well, take 10M l precisely, put it in another 100ml measuring flask, dilute it to the scale with water, shake well, then get it. Each lm l is equivalent to 10 μl of Zn] 0.005% ML. The control solution prepared by the same method should not be more concentrated ().
Heavy metals
take this product l.O g, Add 10ml of dilute hydrochloric acid and 5ml of Australian Test Solution, boil for 5 minutes, filter, filter and submerge, wash with 35ml of boiling water, combine filtrate and wash, add water to 50 ml, shake well; add one drop of phenolphthalein indicator solution and oxygen test solution until the solution is light red. Add 2ml of acetate buffer (pH 3.5) and an appropriate amount of water to 2 5M l, after adding 0821g ascorbic acid to dissolve, check according to law (General rule first law), the color shall be measured at 5 minutes, and the heavy metal content shall not exceed 30 parts per million.
suction force
- take the product dried to constant weight 1. 0g, add 0. 12% quinine sulfate solution, at room temperature of not less than 20 t, shake with force for 5 minutes, immediately filter with dry medium-speed filter paper, and then separate 10ml of filtrate, add 1 drop of hydrochloric acid and 5 drops of mercury iodide solution, no turbidity.
- take two 100ml plug measuring cylinders, and add one cylinder with 0. 2 5G, respectively, precision plus 0.1% methylene blue solution each 5 0L, tamponade, at room temperature is not less than 201C, strong shaking 5 minutes, filter the solution in the two cylinders with dry medium-speed filter paper respectively, take 25ml of each filtrate in a precise amount, place it in two 250ml measuring flasks respectively, and add 50ml of sodium acetate solution (50ml) each, shake well, under continuous rotation, add the Iodine titration solution (0.05mol/L>35ml), Pack, shake, place, vigorously shake every 10 minutes for 1 time, after 50 minutes, dilute to the scale with water, shake, place for 10 minutes, respectively, with dry filter paper filtration, precision take the continued filtrate 100ml, respectively, with sodium sulfate titration solution (0. lm o l/L) titration. The difference of consumption iodine titrant (0.05mol/L) between the two should not be less than 1. 4ml.
microbial limit
This product shall be taken and inspected according to law (General rule 1105 and general rule 1 1 0 6). The total number of aerobic bacteria per l g of sample shall not exceed lOOcfu, and the total number of molds and yeasts shall not exceed lOOcfu, E. Coli shall not be detected; Salmonella shall not be detected in every 10g of the test product.
The background value of endotoxic waste contained in activated carbon of endotoxin in fine seedlings
take about 75mg of activated carbon, add about 5m l of bacterial endotoxin test water to configure the activated carbon concentration of 1.5%(1.5g/1500) of the mixed solution, vortex mixing for 9 minutes, and then turn centrifugation for 5 minutes, after centrifugation, take the liquid with 0. 22 | urn pyrogen-free filter filtration, take the filtrate according to the general rule 1143 detection, the sample bacterial endotoxin should be less than 2 E U/g. Adsorption of bacterial endotoxin by activated carbon, one national standard of bacterial endotoxin is taken and prepared into a standard endotoxin solution with a concentration of 200EU/ml and 20EU/ml according to the instructions for use, weigh about 75mg of activated carbon in two portions, add about 5ml of standard endotoxin solution with concentration of 200EU/ml and 20EU/nJ respectively to prepare a mixed solution with activated carbon concentration of 1.5%, and mix in vortex for 9 minutes, after centrifugation for 5 minutes at 1500 rpm, the supernatant was filtered with a 0.22pm pyrogen-free filter membrane, and the filtrate was collected and tested according to general rule 1143, which should make 200EU/ml, the content of endotoxin in the standard endotoxin solution of 20EU/ml decreased by 2 orders of magnitude (the adsorption rate reached 99%).
sterile (for sterile preparations without sterilization process)
take this product, according to the law inspection (General 1101), should comply with the provisions.
Last Update：2022-01-01 11:24:19
83138-28-7 - Category
Authoritative Data Verified Data
pharmaceutical excipients, adsorbents, etc.
Last Update：2022-01-01 11:24:19
83138-28-7 - Storage
Authoritative Data Verified Data
sealed storage.
Last Update：2022-01-01 11:24:20
83138-28-7 - Introduction
Charcoal is a non-metallic element with many important properties and applications. Here is an introduction to Charcoal:
Nature:
1. Charcoal is a non-metallic element, which exists in various organic and inorganic substances on the Earth.
2. Charcoal is a solid, black crystal at room temperature and pressure, can form many heterostructures, such as diamond, graphite and fullerene.
3. Charcoal has high melting point and heat of fusion, and is a good electrical conductor and thermal conductor.
4. Charcoal has four valence electrons, which can form covalent bonds with other atoms to form a wide range of compounds.
Use:
1. Charcoal is the basis of organic compounds. It is a key element in life and exists in foods such as vegetables, fruits and meat.
2. Charcoal is used in industry to manufacture many important substances, such as petroleum products, plastics, rubber, inks and pigments.
3. Charcoal is one of the most important sources of fuel, including coal, natural gas and oil. They provide heat and electricity.
4. Charcoal is also used in the manufacture of batteries, electrodes, conductors and adsorbents and other electronic equipment.
Preparation Method:
1. Charcoal can be prepared by pyrolysis, carbonization or redox reaction of coal and organic materials.
2. Common methods for preparing Charcoal include heating, purification and purification of coal.
Safety Information:
1. Charcoal itself has no obvious harm to the human body, but some Charcoal compounds may be toxic to the human body. Therefore, safety should be paid attention to when handling and using Charcoal compounds.
2. Charcoal materials such as diamonds and graphite are usually stable and non-flammable, and are harmless to the human body.
3. Charcoal acid salt and cyanide are some toxic Charcoal compounds, which should be handled with care and avoid contact.
Nature:
1. Charcoal is a non-metallic element, which exists in various organic and inorganic substances on the Earth.
2. Charcoal is a solid, black crystal at room temperature and pressure, can form many heterostructures, such as diamond, graphite and fullerene.
3. Charcoal has high melting point and heat of fusion, and is a good electrical conductor and thermal conductor.
4. Charcoal has four valence electrons, which can form covalent bonds with other atoms to form a wide range of compounds.
Use:
1. Charcoal is the basis of organic compounds. It is a key element in life and exists in foods such as vegetables, fruits and meat.
2. Charcoal is used in industry to manufacture many important substances, such as petroleum products, plastics, rubber, inks and pigments.
3. Charcoal is one of the most important sources of fuel, including coal, natural gas and oil. They provide heat and electricity.
4. Charcoal is also used in the manufacture of batteries, electrodes, conductors and adsorbents and other electronic equipment.
Preparation Method:
1. Charcoal can be prepared by pyrolysis, carbonization or redox reaction of coal and organic materials.
2. Common methods for preparing Charcoal include heating, purification and purification of coal.
Safety Information:
1. Charcoal itself has no obvious harm to the human body, but some Charcoal compounds may be toxic to the human body. Therefore, safety should be paid attention to when handling and using Charcoal compounds.
2. Charcoal materials such as diamonds and graphite are usually stable and non-flammable, and are harmless to the human body.
3. Charcoal acid salt and cyanide are some toxic Charcoal compounds, which should be handled with care and avoid contact.
Last Update：2024-04-09 20:49:11
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View History
83138-28-7
3128-18-5
864684-98-0
89987-06-4
H-HOARG-OH
2364554-48-1
92633-14-2
1-Bromo-4,4,4-trifluoro-2-butanol
Leuprorelin
80-63-7
3128-18-5
864684-98-0
89987-06-4
H-HOARG-OH
2364554-48-1
92633-14-2
1-Bromo-4,4,4-trifluoro-2-butanol
Leuprorelin
80-63-7
Raw Materials for 83138-28-7
Downstream Products for 83138-28-7