Blog - Shanghai Douwin Chemical Co.,Ltd.

Uses and Hazards of Acrylamide Sep 16-2021

Acrylamide is the raw material for the production of polyacrylamide. Uses of acrylamide: water purification treatment, pulp processing and internal coating of pipelines, etc. The following are the use...

Production Process of Methyl Ethyl Ketone Sep 09-2021

1. Brief description of the process of methyl ethyl ketoneThe total production process of methyl ethyl ketone can be divided into two parts: sec-butanol synthesis and refining; methyl ethyl ketone syn...

Industrial Production and Use of Phthalic Acid Sep 02-2021

Phthalic anhydride is an organic compound, which is a cyclic anhydride formed by the dehydration of phthalic acid molecules. Phthalic anhydride is a white solid, an important raw material in the chemi...

Method of Producing Phthalic Anhydride and Its Recovery Process Aug 23-2021

1. Method of producing phthalic anhydridePhthalic anhydride is an important chemical raw material. The current methods for producing phthalic anhydride mainly include naphthalene oxidation and o-xylen...

What Products Are Maleic Anhydride Used As a Raw Material For? Aug 16-2021

1. What are the uses of maleic anhydride?Maleic anhydride, colorless crystal with strong irritating odor, freezing point 52.8℃, boiling point 202℃, easy to sublimate. It is mainly made from the oxid...

What Are the Preparation Methods of Maleic Anhydride? Aug 09-2021

I. Oxidation of benzene to maleic anhydrideAfter heating to a tubular catalytic reactor, benzene is mixed with air through a heat exchanger. The oxidation reaction is carried out under reaction condit...

Methods for Preparation of Phthalic Anhydride Jul 22-2021

1. Introduction to phthalic anhydridePhthalic anhydride, abbreviated as 1,3-isobenzofurandione, is a white solid, an important raw material in the chemical industry, especially used in the manufacture...

The Difference Between Maleic Anhydride and Succinic Anhydride Jul 15-2021

1. Introduction of Maleic AnhydrideMaleic anhydride is the anhydride of maleic acid. It is a sour colorless or white solid at room temperature. It is flaky with shapes of needles, rods, lumps or clust...

Properties and Stability of Maleic Anhydride Jul 08-2021

Ⅰ. Properties of maleic anhydrideThe molecular formula of maleic anhydride is C4H2O3 and the molecular weight is 98.06. Colorless crystal with strong irritating smell, freezing point 52.8℃, boiling ...

The Substance That Maleic Anhydride Decomposes at High Temperature Jul 01-2021

1. What is the substance that maleic anhydride decomposes at high temperature?Maleic anhydride decomposes at high temperatures, and releases carbon dioxide and a lot of heat. For high-purity substance...