SELENIUM BROMIDE
- Product Name
- SELENIUM BROMIDE
- CAS No.
- 7789-52-8
- Chemical Name
- SELENIUM BROMIDE
- Synonyms
- 12049-00-2;SELENIUM BROMIDE;Einecs 232-173-5;selenium(I) bromide;Diselenium dibromide;SELENIUM MONOBROMIDE;SELENIUM BROMIDE 99%;seleniumbromide(se2br2)
- CBNumber
- CB5319710
- Molecular Formula
- Br2Se2
- Formula Weight
- 317.75
- MOL File
- 7789-52-8.mol
SELENIUM BROMIDE Property
- Boiling point:
- 227, decomposes [KIR82]
- Density
- d415 3.604
- solubility
- reacts with H2O; soluble in CS2, chloroform
- form
- red liquid
- color
- red
- Water Solubility
- decomposes in H2O; soluble chloroform, ethyl bromide, carbon disulfide [MER06]
- EPA Substance Registry System
- Selenium bromide (Se2Br2) (7789-52-8)
Safety
- RIDADR
- 3289
- HazardClass
- 6.1(a)
- PackingGroup
- II
SELENIUM BROMIDE Chemical Properties,Usage,Production
Chemical Properties
Dark red, almost black, oily liquid with an unpleasant odour; hygroscopic; rapidly liberates Br2 in air, simultaneously separating Se. Partially decomposed on heating; first, some Br2 escapes, then some SeBr4 sublimes, and between 225 and 230°C, a part of the Se2Br2 boils without decomposition, leaving a residue of Se. In water, Se2Br2 sinks to the bottom in oily drops and gradually decomposes into Se, SeO2 and HBr, soluble in CS2 and CHCl3.
Production Methods
A round-bottom flask, equipped with a separatory funnel and gas outlet tube connected to a P2O5 drying tube, is filled with a suspension of 20 g of pure powdered Se in 50 ml of dry CS2; 20 g of pure Br2 is then slowly added from the separatory funnel. If the flask is occasionally shaken, the reaction is soon complete. A reddish-brown solution is formed, from which the CS2 is evaporated in a vacuum as rapidly as possible. The product is deep-red, pure Se2Br2.
Synthesis
A round-bottom flask, equipped with a separatory funnel and gas outlet tube connected to a P2O5 drying tube, is filled with a suspension of 20 g. of pure powdered Se in 50 ml. of dry CS2; 20 g. of pure Br2 is then slowly added from the separatory funnel. If the flask is occasionally shaken, the reaction is soon complete. A reddish-brown solution is formed, from which the CS2 is evaporated in vacuum as rapidly as possible. The product is deep-red, pure Se2Br2 .
SELENIUM BROMIDE Preparation Products And Raw materials
Raw materials
Preparation Products
SELENIUM BROMIDE Suppliers
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