Name | Calcium chloride |
Synonyms | Calcium chloride calciumchloraide CACL2 (CALCIUM CHLORIDE) anhydrouscalciumchloride Anhydrous calcium chloride Calcium chloride anhydrous calciumchloride(anhydrous) Calcium chloride,medicinal PELADOW(R) SNOW AND ICE MELT Calcium chloride,aqueous solution calcium chloride anhydrous for food calcium chloride anhydrus for technical |
CAS | 10043-52-4 17787-72-3 |
EINECS | 233-140-8 |
InChI | InChI=1/Ca.2ClH/h;2*1H/q+2;;/p-2 |
InChIKey | UXVMQQNJUSDDNG-UHFFFAOYSA-L |
Molecular Formula | CaCl2 |
Molar Mass | 110.98 |
Density | 1.086g/mLat 20°C |
Melting Point | 772 °C (lit.) |
Boling Point | 1935 °C/1 atm (lit.) |
Flash Point | >1600°C |
Water Solubility | 740 g/L (20 ºC) |
Solubility | Soluble in water (74.5 g/100ml) at 20 °C, alcohol, water (159 g/100ml) at 100 °C, ace |
Vapor Presure | 0.01 mm Hg ( 20 °C) |
Appearance | White particles |
Specific Gravity | 2.15 |
Color | White to gray |
Maximum wavelength(λmax) | λ: 260 nm Amax: 0.04λ: 280 nm Amax: 0.02 |
Merck | 14,1659 |
PH | 8-10 (100g/l, H2O, 20℃) |
Storage Condition | Store at +5°C to +30°C. |
Stability | Stable. Incompatible with zinc, water, strong acids, methyl vinyl ether, bromine trifluoride, boron oxide, calcium oxide. Hygroscopic. |
Sensitive | Hygroscopic |
Refractive Index | n20/D 1.358 |
MDL | MFCD00010903 |
Physical and Chemical Properties | It is transparent to slightly muddy, colorless or milky white liquid at room temperature. The standard concentration of CaCl2 is about 35% ~ 45%. |
Use | Used as desiccant, refrigerant, building antifreeze, road dust collector, anti-fog agent, fabric fire retardant, food preservative and used in the manufacture of calcium salt |
Hazard Symbols | Xi - Irritant |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36 - Irritating to the eyes R36/38 - Irritating to eyes and skin. R41 - Risk of serious damage to eyes R22 - Harmful if swallowed |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. S24 - Avoid contact with skin. S22 - Do not breathe dust. S36 - Wear suitable protective clothing. |
WGK Germany | 1 |
RTECS | EV9810000 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 28272000 |
Toxicity | LD50 i.v. in mice: 42.2 mg/kg (Syed, Hosain) |
Raw Materials | Feldspar powder Calcium chloride Calcium hydroxide Calcium carbonate Hydrochloric acid Calcium oxide |
Reference Show more | 1. Xiaohong, Tian Wenjing, Liu Xiaofei, et al. Study on Tolerance of Lactic Acid Microcapsules to Organic Acid Salt Silage Additives [J]. Chinese Dairy Cows 2018 000(006):11-14. 2. Zhang Man, Li Hao, Xu Ting, et al. Effect of Strontium-containing Cross-linked Sodium Alginate Gel on Adhesion and Proliferation of Preosteoblasts [J]. Shanghai Stomatological 2019 28(02):21-25. 3. Zhenhui, Xiang Shuangyun, yang Xinjian, et al. Study on Microencapsulation of Chicken Lactic Acid Bacteria Sodium Alginate [J]. Feed Research, 2018, 000(003):64-66. 4. Tang He Na, Yang Lei, Ouyang Zhiyuan, et al. Preliminary Study on Mineralization Mechanism of Seawater Pearl Based on in Vitro Bionic [J]. Acta Electron Microscopy, 2017, 036(006):589-597. 5. Zhou Zhenhui, Xiang Shuangyun, guan Wenyi, et al. Study on Microencapsulation Conditions of Lactic Acid Bacteria from Chicken [J]. Feed Research, 2019, 042(002):81-83. 6. Mi Huan Bao Lijun. Study on Difference of Antioxidant Activity of Silk Hydrolysates of Different Cocoon Colors [J]. Agricultural Science Research 2017(3). 7. Yang Yutong, Zhang Qingshuo, Fu Yunlin, Sun Jing. Pigment Composition, Stability and Antioxidant Activity of Dalbergia Bari Heartwood [J]. Forestry science, 2021,57(03):126-134. 8. Zheng, Li, et al. "Gel properties and structural characteristics of soy protein isolate treated with different salt ions before spraying combined with dynamic high-pressure micro-fluidization." Food and Bioproducts Processing 125 (2021): 68-78.https:// 9. Zhang, yichao, et al. "Development of a thin-layer chromatography bioautographic say for neuraminidase inhibitors hyphenated with electrostatic field induced spray ionisation-mass spectrometry for identification of active Isatis indigotica root compounds. 10. [IF = 7.514] Dandan Pu et al." Characterization of the oral breakdown, sensory properties, and volatile release during mastication of white bread."Food Chem. 2019 Nov;298:125003 11. [IF = 6.291] Shiying Wang et al." Preparation of sodium alginate-poly (vinyl alcohol) blend beats for base-triggered release of dinotefuran in Spodoptera litera midgut."Ecotox Environ Safe. 2020 Oct;202:110935 12. [IF = 6.119] Peng Jin et al." Efficient bioconversion of high-concentration D-fructose into D-mannose by a novel N-acyl-D-glucosamine 2-epimerase from Thermobifida halotolerans."Cal Sci Technol. 2021 Mar;11(5):1922-1930 13. [IF = 5.875] Yanyan Yin et al." Cascade catalytic nanoplatform based on ions interference strategy for calcium overload therapy and ferroptosis."Int J Pharmaceut. 2021 Sep;606:120937 14. [IF = 5.537] Feng Wang et al." Roles of antioxidant capacity and energy metabolism in the maturity-dependent chilling tolerance of postharvest kiwifruit."Postharvest Biol Tec. 2020 Oct;168:111281 15. [IF = 5.354] Mahmoud Youssef et al." Encapsulation of Lactobacillus Salivarius in Single and Dual biopolymer."J Food Eng. 2021 Apr;294:110398 16. [IF = 5.279] Xing Lv et al." The Enhancement of Antiviral Activity of Chloroinconazide by Aglinate-based Nanogel and Its Plant Growth Promotion Effect."J Agr Food Chem. 2021;69(17):4992-5002 17. [IF = 5.121] Yingjie Zhang et al." Biomimetic Ca2 nanogenerator based on ions interference strategy for tumour-specific therapy."Journal Of Drug Targeting. 2021 May 03 18. [IF = 4.759] Yichao Zhang et al." Development of a thin-layer chromatography bioautographic say for neuraminidase inhibitors hyphenated with electrostatic field induced spray ionisation-mass spectrometry for identification of active isatis indigotica root compounds."J 19. [IF = 4.481] Li Zheng et al." Gel properties and structural characteristics of soy protein isolate treated with different salt ions before spraying combined with dynamic high-pressure micro-fluidization."Food Bioprod Process. 2021 Jan;125:68 20. [IF = 3.72] Shuai Tang et al." Crystallization Kinetics and Mechanisms of Calcium Sulfate Dihydrate: Experimental Investigation and Theoretical Analysis."Ind Eng Chem Res. 2020;59(50):21676-21684 21. [IF = 3.423] Yangyang Guo et al." Fabrication of functional nanofibril film from biodegradable konjac glucomannan and polyethylene oxide via electrospinning method."Mater Lett. 2022 Jan;307:131066 22. [IF = 4.169] Wang Xinzhe et al." The Biocompatibility of Multi-Source Stemcells and Gelatin-Carboxymethyl Chitosan-Sodium Alginate Hybrid Biomaterials."Tissue Eng Regen Med. 2022 Feb;:1-13 23. [IF=6.558] Changhao Bao et al."Simultaneous determination of aesculin and aesculetin and their interactions with DNA using carbon fiber microelectrode modified by Pt-Au bimetallic nanoparticles."Anal Chim Acta. 2022 Apr;1202:339664 24. [IF=4.35] Peilong Liao et al."The Layered Encapsulation of Vitamin B2 and β-Carotene in Multilayer Alginate/Chitosan Gel Microspheres: Improving the Bioaccessibility of Vitamin B2 and β-Carotene."Foods. 2022 Jan;11(1):20 25. [IF=5.354] Peilong Liao et al."The multilayered emulsion-filled gel microparticles: Regulated the release behavior of β-carotene."JOURNAL OF FOOD ENGINEERING. 2022 Oct;331:111119 26. [IF=7.514] Shengnan Zhu et al."Enzymic catalyzing affinity to substrate affects inhibitor-enzyme binding interactions: Inhibition behaviors of EGCG against starch digestion by individual and co-existing α-amylase and amyloglucosidase."FOOD CHEMISTRY. 2022 Sep;388:133 |
colorless cubic crystal. General industrial products are white or gray-white porous block or granular, honeycomb. No odor, slightly bitter taste. The relative density was 2.15. Melting point 782 °c. Boiling point of 1600 deg C above. Hygroscopicity is very strong, exposed to the air is easy to deliquescence. Soluble in water, while releasing a lot of heat, the aqueous solution is slightly acidic. Soluble in alcohol, acetone, acetic acid. With ammonia or ethanol, respectively, the formation of CaCl2 · 8NH3 and CaCI2 · 4C2 Hs OH complexes. At room temperature by aqueous solution crystallization and precipitation of often six water, gradually heated to 30 deg C when the dissolution
In the crystallization water itself, heating was continued to gradually lose water, to 200 ° C. To become dihydrate, and then heated to 260 ° C. To become white porous anhydrous calcium chloride.
after the limestone (CaCO3> 95%) was crushed, a dissolution tank was added, and 2.2 industrial hydrochloric acid was added in a ratio of 31%: 1 to the limestone, and the reaction was carried out under stirring. The gas generated by the reaction is sent to the spray tower filled with limestone, and the dilute solution of calcium chloride is sprayed, and the solution with a concentration of 300~350g/L calcium chloride is obtained from the bottom of the tower, after mixing with the calcium chloride solution from the dissolution tank, barium chloride is added to remove the sulfate radical generated into barium sulfate precipitate; The solution is heated to 70~75 °c, and milk of lime is added, the pH of the solution is adjusted to 8.5 to 9, and impurities such as iron, aluminum, and magnesium therein are removed by hydroxide precipitation. After clarification, filtration and evaporation, a calcium chloride solution with a content of 70% or more is obtained, and spray drying and dehydration are carried out in a spray drying tower under a hot gas flow at 400-450 ° C. To obtain an anhydrous calcium chloride powder.
used as desiccant, such as for nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide and other gases drying. Alcohols, esters, ethers and acrylic resins are used as dehydrating agents in the production. Calcium chloride aqueous solution is an important refrigerant for freezer and ice making. It can accelerate the hardening of concrete and increase the cold resistance of building mortar. It is used as an anti-fog agent, a road dust collector and a fabric fire retardant in ports. Used as a protective agent for aluminum and magnesium metallurgy, refining agent. It is a precipitant for the production of lake pigments. Used for deinking in waste paper processing. It is a raw material for the production of calcium salts. It is used as chelating agent and coagulant in food industry.
packed in a plastic woven bag lined with polyethylene plastic bag or a fiberboard barrel lined with polyethylene plastic bag. The net weight of each bag (barrel) is 50kg. The packaging bag (barrel) shall have obvious "moisture-proof" mark and name, address, product name, trademark, grade, net weight, batch number or date of production. Should be stored in a ventilated, dry warehouse. Packaging containers must be sealed to prevent moisture. Separate from deliquescent articles. During transport, be careful to prevent rain and sun exposure. When loading and unloading should be light to prevent packaging damage. In case of fire, it can be suppressed by water, sand and all kinds of fire extinguishing. Toxicity and protection: When the rats were orally administered, the minimum lethal dose was 4000mg/kg. Contact with the skin can cause corrosion blistering. When exposed to the skin, rinse with water. Wear work clothes, gloves and long rubber boots during production, handling and use. Pay attention to protect the skin.
introduction | anhydrous calcium chloride is a white porous frit or particle. Easy deliquescence. The melting point is 782 ℃, the density is 2.15g/cm3, and the boiling point is higher than 1600 ℃. It is easily soluble in water and releases a lot of heat. It is also soluble in ethanol and acetone. The common one is calcium chloride hexahydrate CaCl2 · 6H2O, colorless tripartite crystal, easy deliquescence, bitter and salty taste, density 1.71g/cm3, soluble in crystal water at 29.92 ℃. When heated to 30°C, four molecules of water are lost to form a dihydrate (CaCl2 · 2H2O), which is a white porous and hygroscopic solid. Continue to heat to produce a hydrate. When the temperature is higher than 200 ℃, the water is completely lost and anhydrous calcium chloride with strong hygroscopicity is formed. Calcium chloride reacts with ammonia to form ammonia compound CaCl2 · 8NH3. |
calcium chloride products | calcium chloride is mainly divided into liquid calcium chloride and solid calcium chloride in appearance. liquid calcium chloride is an aqueous solution of calcium chloride, and the general calcium chloride content is 27 ~ 42%. if the calcium chloride content is too high, the solution will be too viscous and the temperature will decrease. the solution will solidify, there are problems such as transportation, unloading, and difficulty in use. Solid calcium chloride can be divided into three types: flaky, spherical, and powdery. Its composition is divided into calcium chloride dihydrate or anhydrous calcium chloride. The content of calcium chloride in calcium chloride dihydrate is generally 72 ~ 78%, and the content of calcium chloride in anhydrous calcium chloride is greater than 90% or 94% (mainly spherical calcium). Generally speaking, the production process of ball calcium is relatively complicated, the process stability is not high, the operating parameters are harsh, and the production energy consumption is slightly higher, but its products have beautiful appearance, good fluidity, no dust, no caking, and not easy to absorb moisture. Therefore, the sales price of ball calcium calcium chloride is higher than that of flaky or powdered calcium chloride. It is mainly used as a desiccant for household use and used as a snow melting agent for export. According to the classification, calcium chloride can be divided into industrial grade calcium chloride and food grade calcium chloride. Compared with industrial-grade calcium chloride, food-grade calcium chloride has stricter production control requirements and higher product purity. The national standards have added indicators such as product color, heavy metals (lead, arsenic) and fluorine content. Food grade calcium chloride can be used as stabilizer, coagulant, thickener, nutrition fortifier, desiccant, etc. Its application range includes bean products, cream, soft drinks, sweet sauce, jam, water preparation and processing aids for food industry. |
use | calcium chloride is used in brine, road ice melting agent and desiccant used in refrigeration equipment. Because it is easy to absorb water and deliquesce in the air, anhydrous calcium chloride should be stored in a sealed container. Calcium chloride and its hydrates and solutions have important application values in food manufacturing, building materials, medicine and biology. Anhydrous calcium chloride is a dehydrating agent and desiccant commonly used in industrial production and laboratories (but cannot dry ammonia, hydrogen sulfide and alcohol). It is mainly used for drying gases, petroleum, organic solvents, etc., inorganic industry It is used as a raw material for making metal calcium and various calcium salts. Calcium chloride is also used as a sizing agent, water purifier, antifreeze, food preservation agent, and road cleaning agent for textiles. CaCl2 · 6H2O is mixed with ice according to 1.44:1 and used as refrigerant in the laboratory. It is also an important refrigerant in the refrigeration industry and can obtain a low temperature of -54.9 ℃. Used as a multi-purpose desiccant, such as the drying of nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide and other gases. Used as a dehydrating agent in the production of alcohols, esters, ethers and acrylic resins. Calcium chloride aqueous solution is an important refrigerant for refrigeration and ice making. It can accelerate the hardening of concrete and increase the cold resistance of building mortar. It is an excellent building antifreeze. Used as antifogging agent for ports, road surface dust collector, and fabric fire retardant. Used as a protective agent and refining agent for aluminum-magnesium metallurgy. It is a precipitant for the production of lake pigments. Used for deinking waste paper processing. It is the raw material for the production of calcium salts. Chelating agent; Curing agent; Calcium fortifier; Refrigerant for freezing; Desiccant; Anticaking agent; Microbial inhibitor; Pickling agent; Tissue improver. Used as desiccant, refrigerant, construction antifreeze, road dust collector, antifogging agent, fabric fire retardant, food preservative and used to make calcium salt Used as refrigerant and lubricating oil additive Used as analytical reagent and desiccant Mainly used to treat tetany, urticaria, exudative edema, intestinal and ureteral colic, magnesium poisoning, etc. caused by decreased blood calcium. Used as calcium fortifier and curing agent in the food industry, chelating agent and desiccant. Desiccant and dehydrating agent for organic liquids and gases. Determination of carbon content in iron and steel. The activity of whole blood glucose, serum inorganic phosphorus and serum alkaline phosphatase was measured. desiccant and dehydrating agent for organic liquids and gases. The culture medium for haploid breeding is used to determine the carbon content of iron and steel, and to determine the activity of whole blood glucose, serum inorganic phosphorus and serum basic phosphate ketone. |
application | calcium chloride is composed of chlorine and calcium, and the chemical formula is CaCl2. It is a typical ionic halide, a white solid at room temperature, and its aqueous solution is neutral. Calcium chloride and its hydrates and solutions have important application values in food manufacturing, building materials, medicine and biology. Medical use can be made into 2% calcium chloride injection, used to treat hypocalcemia, etc. Calcium chloride aqueous solution is the main component of tears and can be used as artificial tears. Calcium chloride aqueous solution can be added to the ornamental fish breeding water to regulate water quality. This product can be used for intestinal colic, etc. Can be used for pruritic skin diseases. Used to rescue magnesium salt poisoning. For vitamin D deficiency rickets, rickets, pregnant women and lactating women calcium salt supplement. Treat tetany caused by calcium deficiency, acute low calcium, alkalosis and hypoparathyroidism, vitamin D deficiency, etc. Food use Calcium chloride can be added to food as a calcium supplement enhancer, and can also be used as a coagulant for tofu and cheese. Calcium chloride can be added to alcoholic beverages and refreshing beverages, which can adjust the pH value and hardness of the beverage. Used as calcium fortifier, curing agent, chelating agent and desiccant in food industry. It can increase the permeability of bacterial cell walls. The exothermic nature of calcium chloride dissolution makes it used on self-heating cans and heating pads. Industrial use is used as a multi-purpose desiccant, such as for drying nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide and other gases. Used as a dehydrating agent in the production of alcohols, esters, ethers and acrylic resins. Calcium chloride aqueous solution is an important refrigerant for refrigeration and ice making. It can accelerate the hardening of concrete and increase the cold resistance of building mortar. It is an excellent building antifreeze. Used as anti-fog agent, road dust collector, fabric fire retardant. Used as a protective agent and refining agent for aluminum-magnesium metallurgy. It is a precipitant for the production of lake pigments. Used for deinking waste paper processing. It is the raw material for the production of calcium salts. Used as road surface dust collector, anti-fog agent, fabric fire retardant. Used as lubricant additive. Used as an analytical reagent. Calcium chloride can be used as a snow remover and does no harm to soil, plants, etc. When making ceramics, calcium chloride is used as one of the material components, which will suspend clay particles in the solution, so that clay particles are easier to use during grouting. As a flux, it acts as a flux to reduce the melting point during the production of metallic sodium by the Davidian electrolysis of molten sodium chloride. In the petroleum industry, calcium chloride is used to increase the density of solid-free brine, and can also be added to the aqueous phase of emulsified drilling fluid to inhibit the expansion of clay. Calcium chloride aqueous solution is an important refrigerant for refrigeration and ice making. It can accelerate the hardening of concrete and increase the cold resistance of building mortar. It is an excellent building antifreeze. |
preparation | calcium chloride dihydrate (dehydration method) method: edible calcium chloride dihydrate is dried and dehydrated at 200~300 ℃ to obtain edible anhydrous calcium chloride finished product. its chemical reaction equation: CaCl2 · 2H2O-[260 ℃]→ CaCl2 + 2H2O for neutral calcium chloride solution, spray drying and dehydration can be carried out under 300 ℃ hot gas flow to prepare anhydrous calcium chloride powder finished product. Spray drying and dehydration method: The refined neutral calcium chloride solution that has removed arsenic and heavy metals is sprayed into a mist from above the spray drying tower through a nozzle, and is in countercurrent contact with the hot air flow at 300 ℃ to achieve drying and dehydration to obtain powdered anhydrous calcium chloride, and the finished product of edible anhydrous calcium chloride is prepared. Mother liquor method: The mother liquor when soda ash is produced by ammonia-alkali method, adding lime milk to obtain an aqueous solution, which is formed by evaporation, concentration, cooling and curing. Metathesis method: It is obtained by the interaction of calcium carbonate (limestone) and hydrochloric acid. Chemical reaction equation: CaCO3 2HCl = CaCl2 H2O CO2 ↑. After the above steps are completed, heat to 260 degrees Celsius and evaporate and dehydrate. Refining method: The by-products in the production of sodium hypochlorite are refined. The by-products of the Solvay method for the preparation of sodium carbonate are refined. (Ca(OH)2+2 NH4Cl → CaCl2 +2 NH3 +2 H2O) |
identification test | 10% sample solution (calculated as anhydrous calcium chloride CaCl2) was prepared, and its calcium salt (IT-10) and chloride (IT-12) tests were positive. |
content analysis | accurately weigh the sample solution equivalent to about lg CaCl2 (dry basis), and then proceed according to the "calcium chloride (13003)" content analysis method. 0.05mol/L of EDTA disodium solution per ml is equivalent to 5.550mg of anhydrous calcium chloride. |
toxicity | LD50 I. v. in mice: 42.2 mg/kg (Syed, Hosain) LD50 I. v. in mice: 42.2 mg/kg (Syed, hosain) |
chemical properties | transparent to slightly muddy, colorless or milky white liquid at room temperature. The standard concentration of CaCl2 is about 35% ~ 45%. |
production method | calcium chloride dihydrate method dries and dehydrates edible calcium chloride dihydrate at 200~300 ℃ to prepare edible anhydrous calcium chloride finished product. Its CaCl2 · 2H2O[260 ℃]→ CaCl2 + 2H2O spray drying and dehydration method sprays the refined neutral calcium chloride solution with arsenic and heavy metals removed into mist form from the top of the spray drying tower through a nozzle, and makes counter-current contact with the hot air flow at 300 ℃ to achieve drying and dehydration, thus obtaining powdered anhydrous calcium chloride, and obtaining edible anhydrous calcium chloride finished product. The mother liquor when making soda ash from the ammonia-alkali method, adding lime milk to obtain an aqueous solution, which is evaporated, concentrated, cooled, and solidified. It is obtained by the interaction of calcium carbonate and hydrochloric acid. By-products in the production of sodium hypochlorite are refined. dehydration method: dry and dehydrate calcium chloride dihydrate at 200~300 ℃ to prepare anhydrous calcium chloride finished product. for neutral calcium chloride solution, its CaC12 · 2H2O → CaC12 + 2H2O can be spray dried and dehydrated under 300 ℃ hot air flow to prepare anhydrous calcium chloride powder finished product. |
category | toxic substances |
toxicity classification | poisoning |
acute toxicity | oral-rat LD50: 1000 mg/kg; oral-mouse LD50: 1940 mg/kg |
flammability hazard characteristics | non-combustible; reacts with water and exothermically; thermal decomposition discharges toxic chloride smoke |
storage and transportation characteristics | warehouse low temperature ventilation and drying; Waterproof, moisture-proof |
extinguishing agent | no water; Foam, dry powder |
NIST chemical information | The information is: webbook.nist.gov provides (external link) |
EPA chemical information | The information is: ofmpub.epa.gov provides (external link) |
toxic substance data | The information is: pubchem.ncbi.nlm.nih.gov Provide (external link) |