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| SELENIUM TETRABROMIDE Basic information |
| 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) |
| 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
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| SELENIUM TETRABROMIDE Preparation Products And Raw materials |
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