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Name:4-Bromophthalicacid    

CAS NO: 6968-28-1

Purity: 97% min

MF: C8H5BrO4

MW:245.027

BP:412.4±40.0 °C at 760 mmHg

Density:1.9±0.1 g/cm3

MP: 162-164°C

EINECS: 230-183-4

Appearance: asked

Package: 25g, 100g, 500g, bulk package

Application: 365bet娱乐 intermediate

Other name:

4-Bromo-1,2-benzenedicarboxylic Acid;

4-bromobenzene-1,2-dicarboxylic acid;

1,2-Benzenedicarboxylic acid, 4-bromo-;

Preparation method of 4-bromophthalic acid  CAS NO: 6968-28-1

By taking phthalic anhydride, sodium hydroxide and sodium bromide as raw materials, evenly mixing phthalic anhydride and sodium hydroxide, under the ultrasonic condition, adding a sodium hypochlorite water solution for reaction, and controlling the pH value of the reaction liquor, to obtain a target product 4-bromophthalic acid.

The purity of the 4-bromophthalic acid obtained by adopting the method is more than 98.5%, and the yield is more than 80%, so that the method meets the green and environment-friendly demands. Compared with the prior art, the preparation method has the advantages that the use of high-toxicity and volatile high-price bromine can be avoided, the utilization rate of bromine can achieve more than 90%, the unreacted phthalic acid can be recovered, met  the green chemical demand .

The upstream and downstream  products of 4-bromophthalic acid  CAS NO: 6968-28-1,we could provide them:

p-Cresol   CAS NO: 106-44-5

4-Bromophthalonitrile   CAS NO: 70484-01-4

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