China (Mainland)
Calcium chloride CAS NO.10043-52-4
- Min.Order: 1 Kilogram
- Payment Terms: L/C,T/T,
- Product Details
Keywords
- Calcium chloride
- 10043-52-4
- anhydrouscalciumchloride;CaCl2
Quick Details
- ProName: Calcium chloride
- CasNo: 10043-52-4
- Molecular Formula: CaCl2
- Appearance: white porous frit or granule.
- Application: It can be used as multi-purpose drying...
- DeliveryTime: 10days
- PackAge: in bags or customized
- Port: Tianjin xingang
- ProductionCapacity: 10 Metric Ton/Day
- Purity: 99%
- Transportation: by sea or by air
- LimitNum: 1 Kilogram
- Heavy metal: less than 0.4%
- Grade: Industrial Grade
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Details
| Calcium chloride Usage And Synthesis |
| Chemical Pproperties |
Calcium chloride is white porous frit or granule. It is deliquescent.Its melting point is782℃, density is 2.15g/cm3, and its boiling point is higher than 1600℃.It is soluble in water while releasing a lot of heat.It is alsosoluble in ethanol and acetone. Common calcium chloride hexahydrate CaCl2•6H2O is colorless tripartite crystal. It isdeliquescent.It is bitter salty, and its density is 1.71g/cm3.It is dissolved in crystal water at 29.92℃. When heated to 30℃, it will lost four water molecules to dihydrate (CaCl2•2H2O). It is porous and hygroscopic white solid, which can generate monohydrate after continuously heated. When the temperature is higher than 200 ℃, dihydrate will lose water completely to turn into hygroscopic calcium chloride. Calcium chloride reacts with ammonia to produce ammonia compound CaCl2•8NH3. Calcium chloride is commonly dehydrant, drying agent that is used in industrial production and laboratory dewatering (but it cannot be used to dry ammonia, hydrogen sulfide and alcohol). It is mainly used to dry gas, oil, organic solvents and so on. It can be used as raw materials of calcium metal and all kinds of calcium salts in inorganic industry. Calcium chloride can also be used as sizing agent, water purification agent, antifreeze, food preservatives and road clean agents of textile. 1.44:1 Mixture of CaCl2•2H2O with ice can be used as refrigerant in the laboratory to obtain low temperature -54.9℃, which is also an important cryogen in refrigeration industry. Calcium chloride can be obtained by the reaction of hydrochloric acid with calcium carbonate. In the industry it is mainly provided by byproduct of ammonia-soda process: 2NH4Cl+ Ca(OH)2 = CaCl2 + 2NH3 + 2H2O. In industrial production, it can be obtained by the dehydration of calcium sulfate dehydrate. Or hydrochloric acid reacts with limestone powder firstly. Then lime is added to remove impurities. After clarification, filtration, purification, and then by heating, evaporation, drying, cooling, calcium chloride is obtained. The above information is edited by the chemicalbook of Ge Qian. |
| Identification test | Preparation of 10% sample solution (with calcium chloride CaCl2), its calcium salt (IT-10) and chloride (IT-12) test are positive. |
| Content Analysis | Weigh accurately sample solution equivalent to about lg CaCl2 (dry basis), and then carried out by content analysis method "calcium chloride (13003)". 1mL 0.05mol/L EDTA disodium solution is equivalent to anhydrous calcium chloride 5.550mg. |
| Toxicity |
LD50 4g/kg (rat, oral). ADI is unrestricted. Generally it is recognized as safe (US Food and Drug Administration). According to the provisions of GB 2760-86, it can be used to make cans. Its usage is on the basis of normal production needs. According to the regulations of FAO/WHO(1984), its uses and limitation are: low-fold concentrated milk, sweetened condensed milk, cream alone is 2g/kg, together with other stabilizers in an amount of 3g/kg with anhydride; milk powder, cream powder 5g/kg, which is the amount of alone or in combination with other stabilizers with anhydride. When contacting with the skin, it can cause the skin blistering corrosion. When producing and moving calcium chloride, one should wear overalls, gloves, long-barreled boots. And one should pay attention to protect the skin. |
| Chemical Pproperties | It is transparent to slightly turbid, colorless or slightly milky white liquid at room temperature. Standard concentration of CaCl2 is about 35% to 45%. |
| Applications | It can be used as multi-purpose drying agent, such as for drying nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide and other gases. It can be used as dehydrating agent in producing alcohol, ester, ether and acrylic resin. Calcium chloride solution is important refrigerant for refrigerator and ice refrigerant. It can accelerate hardening of concrete and increase the tolerance to cold of building mortar. It is an excellent building antifreeze. It can be used as anti-fogging agent of port, road dust and fabric fire retardant. It can be used as protective agent and refining agent of aluminum magnesium metallurgy. It is the precipitant in the production of lake pigments. It can be used to process waste paper deinking. It is raw material to produce calcium. |
| Production Method |
1. Calcium chloride dihydrate method dehydrates and dries edible calcium chloride dihydrate to obtain edible anhydrous calcium chloride at 200~300℃. Its reaction equation: CaCl2•2H2O [260℃] → CaCl2 + 2H2O For spray drying dehydration method, refined neutral calcium chloride solution that has been removed arsenic and heavy metals sprays mist through a nozzle above the spray drying tower, and contacts with 300℃ hot air countercurrent to dry and dehydrate. Then powdery anhydrous chloride calcium is obtained, and edible anhydrous calcium chloride is prepared. 2. Lime milk is added into the mother liquor to prepare sodium carbonate by ammonia-soda process to obtain aqueous solution. Then it can be obtained by evaporation, concentration, cooling, curing. It can be obtained by reaction of calcium carbonate and hydrochloric acid. It can be obtained by the rectification of by-products in the production of sodium hypochlorit. |
| Category | Toxic chemicals. |
| Toxicity Grading | Medium poison. |
| Acute Toxicity | Oral-rat LD50: 1000 mg/kg; Oral-Mouse LD50: 1940 mg/kg |
| Flammability Hazard Characteristics | Non-combustible;Emit a lot of heat when react with water; Exhausttoxic chloride fumes by thermal decomposition. |
| Storage Characteristics | Storeroom with low temperature,ventilation, drying; waterproof, moisture-proof. |
| Extinguishing Agent | Not water,but foam,dry powderfireextinguisher. |
| Chemical Properties | white beads or powder |
| Usage | desiccant |
| Usage | For the treatment of hypocalcemia in those conditions requiring a prompt increase in blood plasma calcium levels, for the treatment of magnesium intoxication due to overdosage of magnesium sulfate, and used to combat the deleterious effects of hyperkalemi |
| General Description | White to off-white solid. Sinks and mixes with water. |
| Air & Water Reactions | Deliquescent. Water soluble. Adding Calcium chloride to hot water caused violent boiling, [MCA Case History No. 69]. |
| Reactivity Profile | Bromine trifluoride rapidly attacks the following salts: barium chloride, cadmium chloride, Calcium chloride, cesium chloride, lithium chloride, silver chloride, rubidium chloride, potassium bromide, potassium chloride, potassium iodide, rhodium tetrabromide, sodium bromide, sodium chloride, and sodium iodide [Mellor 2 Supp. 1:164, 165 1956]. Long term exposure of Calcium chloride solution upon a zinc coated galvanized iron vessel caused slow evolution of hydrogen which ignited and exploded [Bretherick, 5th Ed., 1995]. |
| Health Hazard | Inhalation causes irritation of nose and throat. Ingestion causes irritation of mouth and stomach. Contact with eyes (particularly by dust) causes irritation and possible transient corneal injury. Contact of solid with dry skin causes mild irritation; strong solutions can cause marked irritation, even a superficial burn. |