CAS 79-11-8 Synthesis Intermediates Chloroacetic Acid

First Grade Wholesale Chloroacetic Acid CAS 79-11-8 For Organic Synthesis Intermediates

Basic Information

Model Number: HMHT0001-13

Molecular Formula: CLCH2COOH

Molecular Weight: 94.5

Standard: HG/T3271-2000

Purity: 97.5% min.; 98% min.; 99% min

Other Names: Monochloroacetic Acid; MCA; MCAA

EINECS NO.: 201-178-4

CAS NO.: 79-11-8

resolve resolution

There are many synthetic methods of chloroacetic acid, including acetic acid chlorination, acetic anhydride catalytic chlorination, trichloroethylene hydrolysis, glycolic acid chlorination, tetrachloroethane hydrolysis, etc. The acetic acid chlorination method is mainly used in domestic industrial production. , the advantage of this method is that it does not use sulfuric acid, and the raw material is cheap, CH3COOH+Cl2→ClCH2COOH+HCl
Add a certain amount of glacial acetic acid to the reaction pot, use 3.5% sulfur powder of glacial acetic acid quality as a catalyst, preheat to above 90 ° C, start to pass an appropriate amount of chlorine gas, two reaction pots are connected in series with chlorine gas, the main pot control temperature is (98± 2) ℃, the auxiliary boiler is 85-90 ℃, and the chlorine gas flow rate is about 70kg/h. When the relative density of the material in the reaction pot is 1.350 (80°C), the reaction end point is reached. The reactant was pumped to an acid tank, cooled and crystallized, the crystals were separated, and then the mother liquor was exhausted below 38°C to obtain the finished product chloroacetic acid. In addition, experiments have also shown that, in addition to sulfur powder, acetic anhydride can also play a better catalytic role in the above-mentioned chlorination reaction under the same conditions, and the effect is better than that of sulfur powder.
There is also a trichloroethylene hydration method. Trichloroethylene reacts with concentrated sulfuric acid, the reaction temperature is 160-180°C, the sulfuric acid content is kept at 93%, the ratio of trichloroethylene and water is controlled, and monochloroacetic acid is obtained through addition and hydrolysis of sulfuric acid in the reaction process.

Technical Specifications

We can provide special grades of MCA as per customers' requirement

Packaging Types

We can provide 25kg bag; 50kg bag;800kg big bag;1000kg big bag or as per customers' requirements.

Applications

Application

Determination of zinc, calcium, silicon and titanium. Synthesis of epinephrine, aminoacetic acid, naphthaleneacetic acid. Manufacture of various dyes. Rust Remover. For the preparation of pesticides and as intermediates in organic synthesis. Used as an acidulant for starch adhesives. It is also an intermediate for dyes, medicines, pesticides, synthetic resins and other organic synthetic materials. Used in the dye industry to produce indigo dyes. Chloroacetic acid is also an important carboxymethylating agent, used in the preparation of sodium carboxymethylcellulose, ethylenediaminetetraacetic acid, etc., and also used as a non-ferrous metal flotation agent and a chromatographic analysis reagent.

Company Profile

Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special

chemical production, technology research & development, and import & export. The company focuses on

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