Calcium Bromide Industrial Grade 7789-41-5
|Min. Order (Tons)||FOB Price|
|20+||US $1,900-4,600 / Ton|
Molecular formula: CaBr2
CAS No.: 7789-41-5
Color: Odorless, very hygroscopic colorless crystals; Sharp saline taste
Packing: (solid) 25kg or 50kg packed in waterproof polyethylene bag; (liquid)
Calcium bromide is the calcium salt of hydrobromic acid with the chemical formula of CaBr2. It is a white powder that reacts with water to form the hexahydrate. CaBr2 is mainly used in drilling fluid.
It is mainly used as dense aqueous solutions for drilling fluids. It is also used in neuroses medication, freezing mixtures, food preservatives, photography and fire retardants.
It is produced by the reaction of calcium oxide, calcium carbonate with hydrobromic acid or the reaction of calcium metal with elemental bromine.
It adopts the rutile structure, featuring octahedral Ca centres bound to six bromide anions, which also bridge to other Ca centres.
In this reaction the oxygen oxidizes the bromide to bromine.
|IUPAC name: Calcium bromide|
|Other names: Calcium dibromide|
|CAS number||7789-41-5 |
|Molar mass||199.89 g/mol (anhydrous)|
235.98 g/mol (dihydrate)
|Appearance||Odorless, very hygroscopic colorless crystals|
sharp saline taste
|Density||3.353 g/cm 3|
|Melting point||730 ° C|
|Boiling point||1935 ° C (anhydrous)|
810 ° C (dihydrate)
|Solubility in water||125 g/100 mL (0 ° C)|
143 g/100 ml (20° C)
312 g/100 mL (100 ° C)
|Solubility in alcohol, acetone||soluble|
|Acidity (p K a)||9|
|Main hazards||Decomposes on heating at high temperature producing toxic and corrosive fumes|
|LD50||4100 mg/kg (rat, oral)|
1580 mg/kg (mouse, subcutaneous)
|Other anions||Calcium fluoride|
|Other cations||Beryllium bromide|