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| | Magnesium bromide hexahydrate Basic information |
| | Magnesium bromide hexahydrate Chemical Properties |
| Melting point | 165 °C | | density | 2 g/mL at 25 °C(lit.) | | storage temp. | Hygroscopic, Room Temperature, under inert atmosphere | | solubility | Methanol, Water | | form | Crystalline Powder | | Specific Gravity | 2 | | color | White | | Water Solubility | soluble | | Sensitive | Hygroscopic | | Stability: | Very Hygroscopic | | InChIKey | OTCKOJUMXQWKQG-UHFFFAOYSA-L | | CAS DataBase Reference | 13446-53-2(CAS DataBase Reference) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-37/39 | | WGK Germany | 3 | | F | 3 | | TSCA | Yes | | HS Code | 28275900 |
| | Magnesium bromide hexahydrate Usage And Synthesis |
| Chemical Properties | Magnesium Bromide Hexahydrate which crystallizes from an aqueous solution at temperatures above 0°C, is highly hygroscopic and isomorphous with MgCl2·6H2O. Magnesium Bromide has two different forms - anhydrous and hexahydrate forms. It appears as white hygroscopic crystals in the anhydrous form and as colorless monoclinic crystals in the hexahydrate form. | | Uses | Magnesium bromide occurs in sea water, surface and subterranean brines, and salt deposits. It is an electrolyte component in certain dry cells. In medicine, it is a sedative and anticonvulsant for treatment of nervous disorder. It also is used in organic synthesis forming several addition compounds. | | Application | Magnesium bromide hexahydrate is used as flame retardant. Used as source of magnesium ion and a co-factor for many enzymes including deoxyribonuclease (DNase) and various restriction enzymes. | | Preparation | Magnesium bromide is prepared by treating MgO
with hydrobromic acid and then crystallization
above 0.0°C in solution. The product is the hexahydrate
salt:
MgO＋2HBr→MgBr2＋H2O→MgBr2·6H2O
The anhydrous form may also be prepared by heating
the hexahydrate with dry HBr gas. This compound can
also be formed directly from the elements:
Mg＋Br2→MgBr2 | | Production Methods | It is also formed by the reaction of magnesium carbonate and hydrobromic acid. The solubility of magnesium bromide is 101 g/ 100 mL of water at 20 °C; the solubility of the hexahydrate is 160 g/ 100 mL of 95% ethanol at 20 °C. |
| | Magnesium bromide hexahydrate Preparation Products And Raw materials |
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