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

color 

White

Specific Gravity

2

Water Solubility 

soluble

Sensitive 

Hygroscopic

Stability:

Very Hygroscopic

InChIKey

OTCKOJUMXQWKQG-UHFFFAOYSA-L

CAS DataBase Reference

13446-53-2(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-37/39

WGK Germany 

3

F 

3

TSCA 

Yes

HS Code 

28275900

MSDS

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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(13446-53-2)Related Product Information

• Magnesium stearate
• Magnesium sulfate
• Methylmagnesium Bromide
• ALLYLMAGNESIUM BROMIDE
• ETHYNYLMAGNESIUM BROMIDE
• Magnesium bromide
• Magnesium sulfate heptahydrate
• Cyclopropylmagnesium bromide
• Ethylmagnesium bromide
• Aluminum nitrate
• MAGNESIUM BROMIDE DIETHYL ETHERATE
• Vinylmagnesium bromide
• Nickel chloride
• Magnesium oxide
• IRON (III) BROMIDE
• NICKEL BROMATE
• Sodium bromide
• Cupric bromide