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Yancheng Sanhe Biochemical Co., Ltd.

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1,4-Dibromobutane

Product name 1,4-Dibromobutane
English alias Butane,1,4-dibromo
Structural formula
Molecular formula C4H8Br2
Molecular weight 215.9143
Appearance Clear liquid
Melting point -20℃ 
Relative density  1.808 
Boiling point 197℃
Water solubility Immiscible
Refractivity n20/D 1.519(lit.)
Content ≥99.0%
Moisture ≤0.05%
Stability Stable. Flammable. Incompatible with strong bases, strong oxidizing agents.
Flash point >230 °F
Vapor pressure 0.544mmHg at 25℃
Storage Under storeroom ventilated at low temperature and stored separately with oxidizing agent.
Use Organic synthetic intermediates used in the manufacture of aminophylline, kebiqing, and so on.
Production method Obtained from 1,4-dibutanol bromination. Hydrobromic acid was added into the reaction pot, stirred to 10 ℃, dropped with sulfuric acid. After addition, the temperature was not more than 15 ℃. Stirring for half an hour, holding at 100-110 ℃ for 6 hours, chilling to room temperature, separating the lower layer liquid, washing it to neutral with soda alkali solution. After dehydration of calcium chloride, filtrating to obtain 1m4-dibromobutane.
UN No. UN 2810 6.1/PG 3
Hazard class 6.1(b)
Packing group III
HS code 2903399090
Packing 250KGS/steel drum
CAS # 110-52-1

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