Name:

1,4-Dibromobutane

Other name:

Butane,1,4-dibromo

CAS:

110-52-1

Specification:

Molecular formula: C₄H₈Br₂
Molecular weight : 215.9143
Appearance :  Clear liquid
Melting point :-20℃
Boiling point: 197℃
Relative density : 1.808
Refractive index : n20/D 1.519(lit.)
Flash point :>230 °F
Content : ≥99.0%
Moisture : ≤0.05%

Other characters :

Water Solvency:  Immiscible   
Condition of storage:  Under storeroom ventilated at low temperature and stored separately with oxidizing agent.
Stability:   Stable. Flammable. Incompatible with strong bases, strong oxidizing agents.
Purpose:Organic synthetic intermediates used in the manufacture of aminophylline, kebiqing, and so on.

Packing:

250Kg / Iron drum

Structural formula:

Synthetic rout:

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

Packing group:

III

HS code:

2903399090