SELENIUM TETRABROMIDE Chemical Properties

Melting point:

70-80 °C (dec.)(lit.)

solubility 

reacts with H2O; soluble in CS2, chloroform

form 

crystal

color 

reddish black

Water Solubility 

Decomposes in water. Soluble in carbon disulfide, chloroform, ethyl bromide

Sensitive 

Moisture Sensitive

Merck 

14,8437

Exposure limits

ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3

CAS DataBase Reference

7789-65-3(CAS DataBase Reference)

EPA Substance Registry System

Selenium bromide (SeBr4), (T-4)- (7789-65-3)

Safety Information

Hazard Codes 

T

Risk Statements 

23/24/25-34-40

Safety Statements 

22-26-27-36/37/39-45

RIDADR 

UN 3290 6.1/PG 2

WGK Germany 

3

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

SELENIUM TETRABROMIDE Usage And Synthesis

Chemical Properties

reddish brown; crystal(s) powder(s); decomposed in moist air [MER06]

Synthesis

The reaction is carried out in a round-bottom flask equipped with a separatory funnel and gas outlet tube connected to a P2O5- glass wool drying tube. Pure Br2 (100 g.) is allowed to flow slowly into a suspension of 20 g. of pure powdered Se in 50 ml. of dry CS2. Finely crystalline yellow SeBr4 separates. When the addition is complete, a gas inlet tube is substituted for the separatory funnel and the CS2 and excess Br2 are driven off with a dry air stream. The residual SeBr4 is rapidly transferred into a tightly sealed vessel.
Se + 2Br2 = SeBr4

SELENIUM TETRABROMIDE(7789-65-3)Related Product Information

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