MOLYBDENUM(III) BROMIDE Property

Melting point:

977°C

Density 

4.890

solubility 

insoluble in H2O, ethanol

form 

green hexagonal crystals

color 

green hexagonal, hexane crystals, crystalline

CAS DataBase Reference

13446-57-6

EPA Substance Registry System

Molybdenum bromide (MoBr3) (13446-57-6)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

MOLYBDENUM(III) BROMIDE Chemical Properties,Usage,Production

Chemical Properties

can be prepared from MoBr4 by reduction with Mo, H2, or a hydrocarbon; another bromide is MoBr2, which can be prepared by reduction of MoBr4 (13446-56-5); oxybromides are: MoOBr3(13596-04-8) and MoO2Br2 (13595-98-7) [KIR81]

Production Methods

MOLYBDENUM(III) BROMIDE Obtained (75% yield) by heating Mo in a stream of Br2 at 350°C. Separated from by-products by washing in cold, HBr-saturated water.

Definition

Black, densely matted crystalline needles, which decompose to Mo3Br6 and Br2 when calcined in the absence of air. Insoluble in water and acids, readily soluble in boiling anhydrous pyridine, forming [MoBr3py3].