Calciumbromide , 98% , 7789-41-5
Synonym(s):
Hydrobromic acid calcium salt
CAS NO.：7789-41-5
Empirical Formula: Br2Ca
Molecular Weight: 199.89
MDL number: MFCD00010902
EINECS: 232-164-6
| Pack Size | Price | Stock | Quantity |
| 25g | RMB24.00 | In Stock |
|
| 100g | RMB38.40 | In Stock |
|
| 500g | RMB94.40 | In Stock |
|
| 1000g | RMB160.80 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 730°C |
| Boiling point: | 806-812°C |
| Density | 3.353 g/mL at 25 °C (lit.) |
| vapor pressure | 0Pa at 25℃ |
| Flash point: | 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 |
| CAS DataBase Reference | 7789-41-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Calcium dibromide(7789-41-5) |
| EPA Substance Registry System | Calcium bromide (CaBr2) (7789-41-5) |
Description and Uses
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.
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.
Safety
| Symbol(GHS) |  GHS05 |
| Signal word | Danger |
| Hazard statements | H318 |
| Precautionary statements | P280-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 38-41 |
| Safety Statements | 22-24/25-39-26 |
| WGK Germany | 2 |
| RTECS | EV9328000 |
| TSCA | Yes |
| HS Code | 2827590000 |
| Hazardous Substances Data | 7789-41-5(Hazardous Substances Data) |
