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ChemicalBook--->CAS DataBase List--->7789-41-5

7789-41-5

7789-41-5 Structure

7789-41-5 Structure
IdentificationMore
[Name]

Calcium bromide
[CAS]

7789-41-5
[Synonyms]

CALCIUM BROMIDE
CALCIUM (II) BROMIDE
CaBr2
Calcium bromide (CaBr2)
calciumbromide(cabr2)
calciumbromideanhydrous
calciumdibromide
Hydrobromic acid calcium salt
Calciumbromidehydratewhitepowder
CalciumbromideultradrymetalsbasisoxideHOOHpp
CALCIUM BROMIDE, ANHYDROUS, 99.98%
Calciumbromide,ultradry,99.978%(metalsbasis)
CALCIUM BROMIDE, ULTRADRY, 99.999%
CALCIUM BROMIDE 52%
Calciumbromide,anhydrous(99.5%-Ca)
Calciumbromide,ultradry(99.999%-Ca)(oxide/H2O/OH<100ppm)PURATREM
calcium bromide, ultra dry
Calcium bromide(liquid)
Calcium bromide(powder)
CALCIUM BROMIDE, ULTRADRY: 99.999% CA, METALS BASIS, OXIDE/H2O/OH <100 PPM (UNDER ARGON)
[EINECS(EC#)]

232-164-6
[Molecular Formula]

Br2Ca
[MDL Number]

MFCD00010902
[Molecular Weight]

199.89
[MOL File]

7789-41-5.mol
Chemical PropertiesBack Directory
[Appearance]

White powder
[Melting point ]

730°C
[Boiling point ]

806-812°C
[density ]

3.353 g/mL at 25 °C(lit.)
[vapor pressure ]

0Pa at 25℃
[Fp ]

806-812°C
[solubility ]

soluble in ethanol, acetone
[form ]

beads
[color ]

White to off-white
[Specific Gravity]

3.353
[Odor]

gran. or rhombic cryst., odorless, sharp saline taste
[Water Solubility ]

Soluble in water, methanol, ethanol and acetone. Insoluble in dioxane, chloroform and ether.
[Sensitive ]

Hygroscopic
[Merck ]

14,1654
[Stability:]

hygroscopic
[Uses]

Made by the action of hydrobromic acid on calcium oxide and crystallization. The white granular crystals are soluble in water. Calcium bromide was used in making collodion emulsions, particularly for dye-sensitized plates.
[CAS DataBase Reference]

7789-41-5(CAS DataBase Reference)
[NIST Chemistry Reference]

Calcium dibromide(7789-41-5)
[EPA Substance Registry System]

7789-41-5(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R38:Irritating to the skin.
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

2
[RTECS ]

EV9328000
[TSCA ]

Yes
[HS Code ]

2827590000
[Hazardous Substances Data]

7789-41-5(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Government regulation-->Hydrogen bromide-->Calcium carbonate-->Calcium hydroxide-->Calcium oxide-->Iron hydroxide-->IRON (II) BROMIDE-->Calcium carbide-->Calcium
[Preparation Products]

D-(-)-FRUCTOSE-->Hexabromoethane-->Carbon dioxide
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Calcium bromide(7789-41-5).msds
Hazard InformationBack Directory
[Description]

Calcium bromide has the chemical formula CaBr2. It was first prepared by Pfeiffer, Klossmann and Angern in 1924. It is a deliquescent salt that has the form of colorless hexagonal crystals that are soluble in water and absolute alcohol. Its molecular weight is 199.90 g/ mol for the anhydride. When strongly heated in air, calcium bromide will produce CaO (lime) and Br2. It is generally obtained as the dihydrate, CaBr2·2H2O, in the form of a white crystalline powder. A hexahydrate, CaBr2·6H2O, is also known. Anhydrous calcium bromide is obtained by dehydration (250°C, vacuum) of the dihydrate CaBr2·2H2O. On contact with hot surfaces or flames, CaBr2 decomposes forming bromine as a toxic and corrosive fume. It also reacts with strong acids to produce corrosive fumes of bromine.
In its solid anhydrous state, it is a white powder. CaBr2 can be found in drilling muds, neuroses medication, freezing mixtures, food preservatives, photography and fire retardants. The anhydride has a melting point of 730°C and a boiling point of 810°C where it decomposes. Its density is 3.41 g/cm3. It is moderately soluble in water at 142 g/100 ml of water.
[Chemical Properties]

Calciumbromide, CaBr2, is a colorless crystalline solid with a melting point of 765°C. It is deliquescent and is soluble in water and absolute alcohol. Calcium bromide is used in medicine. Calcium bromide(hydrated), CaBr2·3H20, has a meiting point of 80.5℃.
[Definition]

ChEBI: Calcium dibromide is a calcium salt.
[Preparation]

CaBr2·2H2O has a melting point of 38°C where it dissolves in its own waters of hydration. Its density is 2.290 g/cm3. It can be prepared by reaction in solution with HBr on the carbonate:
CaCO3 (solid)+HBr (liq)→CaBr2 (liq)+ CO2 (gas)
An improved method for producing calcium bromide has been developed by reacting hydrogen bromide with calcium hydroxide in the presence of water.
Questions And AnswerBack Directory
[Uses]

Calcium bromide (CaBr2) is used as a developer for photographic film and paper and as a dehydrating agent (drying agent), food preservative, and fire retardant.
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

Calcium bromide, ultra dry , 99.978% (metals basis)(7789-41-5)
[Sigma Aldrich]

7789-41-5(sigmaaldrich)
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