Name:

1-Bromopropane

Other name

n-Propyl bromide;
NPB;

CAS:

106-94-5

Specification:

Molecular formula:   C₃H₇Br
Molecular weight :  122.9917
Appearance :  Clear liquid
Melting point :-110℃
Boiling point: 71℃
Relative density :   1.354 g/mL at 25 ℃(lit.)
Refractive index :  n20/D 1.434(lit.)
Flash point : 72 °F
Content : ≥99.5%
Moisture : ≤0.05%

Other characters :

Water Solvency:  2.5 g/L (20 ℃).  
Condition of storage:   Stability Flammable - note low flash point. Incompatible with strong oxidizing agents, strong bases.
Stability:  Stable under normal temperatures and pressures.
Purpose:  Organic extractants, cleaning agents, also used in synthetic medicine, pesticides, dyes, spices and so on.  

Packing

250Kg / Iron drum

Structural formula:

Synthetic rout:

Hydrobromic acid was added into concentrated sulfuric acid, then n-propanol was added, refluxed for 0.5 h, all bromopropane was steamed out at 70-75 ℃, then washed with concentrated hydrochloric acid. Then neutralized with sodium carbonate until ph is 7. Dry with anhydrous sodium sulfate, filtration, filtrate distillation, collection of 69-74 ℃ distillate to obtain bromopropane. From the reaction of n-propanol with sodium bromide, n-propanol and water. Sodium bromate is heated to reflux together, kept at 69-72 ℃, added sulfuric acid, added, refluxed for 2 h, distilled, collected 68 ~ 100 ℃ distillate, washed to neutral with sodium carbonate solution, then distilled. In addition, bromopropane can also be prepared by the reaction of n-propanol with bromine in the presence of red phosphorus.

UN No.

UN 2344 3/PG 2

HS code

2903399090