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China Dibromomethane - China Supplier
China Dibromomethane - China Supplier China Dibromomethane - China Supplier China Dibromomethane - China Supplier China Dibromomethane - China Supplier

Dibromomethane

Price:$Negotiation
Industry Category: Chemicals
Product Category:
Brand: Yuansu
Spec: Assay: 99% min by GC


Contact Info
  • Add:No.186 Renxiang Street, Gulin Community,Binhai New Area,, Zip: 300192
  • Contact: Yuansu
  • Tel:0086-22-83739603
  • Email:sales@yuansu-reagent.com

Other Products

Description
Additional Information

Packing:50kg,200kg,250kg,400kg drum or as per the buyer's request.

 

Specification:  CAS NO.:74-95-3

Appearance:colorless clear liquid. Assay: 99.00 min. by GC IR Identity: conform to standard HNMR: conform to standard carbon spectrum: conform to standard Water by K. F.:0.5% max or as per the customer’s request Loss on drying:0.5% max. or as per the customer’s request

Used mainly in

Organic synthesis raw materials: used for synthesizing various organic compounds, such as pharmaceutical and pesticide intermediates.

•Solvent: Can be used as a non proton solvent in organic reactions.

•Refrigerant and flame retardant components: Used for refrigerants and flame retardants in certain special formulations.

Anti explosion agent: used as an anti explosion additive in fuels such as gasoline.

•Medical use: Used as a disinfectant and analgesic.

Pesticide synthesis: It is an important intermediate for fungicides such as tebuconazole and imidacloprid.

Synthesis lines:

 the industrial synthesis of dibromomethane mainly involves the following methods:

1. Dichloromethane bromination method

Reaction equation:

CH2Cl2+Br2−>CH2Br2+Cl2CH2Cl2+Br2−>CH2Br2+Cl2

This reaction is usually carried out under the catalysis of anhydrous aluminum tribromide (AlBr ∝).

2. Reaction method of bromochloromethane and hydrogen bromide

Reaction equation:

CH2BrCl+HBr−>CH2Br2+HCl\ceCH2BrCl+HBr−>CH2Br2+HCl

This method can simultaneously produce the byproduct of chlorobromomethane.

3. Tribromomethane method (less commonly used)

The product is obtained by reacting bromoform (CHBr ∝) with sodium arsenite under alkaline conditions, followed by hydrolysis, fractionation, dehydration, and distillation.

The consumption of raw materials is high, the economy is low, and there are few industrial applications.

Industry Category Chemicals
Product Category
Brand: Yuansu
Spec: Assay: 99% min by GC
Stock: 60000
Manufacturer:
Origin:
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