Blog - Shanghai Douwin Chemical Co.,Ltd.

Precautions for the Use of Maleic Anhydride Jun 08-2022

Maleic anhydride, also known as anhydrous malic anhydride, maleic anhydride, and maleic anhydride, is an acid anhydride of maleic acid. It is a white crystal with a strong pungent odor at room tempera...

Preparation and Function of Adipic Acid Jun 01-2022

Adipic acid, also known as fatty acid, is a carboxylic acid organic compound. It is a white crystalline powder, slightly soluble in water, and acidic when dissolved in water. As the basic unit of vari...

Maleic Anhydride Used in Paints and Artificial Sweeteners May 17-2022

1. Maleic anhydride used in paints and other chemicalsGenerally, factories in the chemical industry use maleic anhydride as a raw material for the production of paints, plastics and other chemicals.At...

Summary of Solutions to Common Problems in Acrylic Resin Production May 10-2022

Ⅰ. Production mechanism and process of acrylic resinAcrylic resin production involves free radical polymerization mechanism, formulation and process design, control of raw materials for synthesis (ac...

Packaging Requirements of Acrylic Resin and Its Process and Preventive Measures Apr 15-2022

1. Filtration and packaging requirements of acrylic resinAfter the resin is filled into barrels, it is found that there are impurities or abnormal conditions such as dark appearance or water droplets....

Phthalic Anhydride Hazards Overview and Storage Considerations Apr 08-2022

1. Overview of the dangers of phthalic anhydrideHealth Hazards: Phthalic anhydride is irritating to the eyes, nose, throat and skin. Inhalation of phthalic anhydride dust or vapour causes coughing, sn...

The Quality and Performance of Maleic Anhydride Have Been Improved Mar 16-2022

Ⅰ. The quality and performance of maleic anhydrideFor daily processing in the chemical and other processing sectors, firms select the appropriate machinery and materials.Maleic anhydride is also util...

Notes on Preservation and Transportation of Butanone Mar 02-2022

Butanone is a colorless, clear, soluble liquid that may be combined with organic solvents like ethanol and benzene and is used as a paint solvent. We all know that paints and coatings may be hazardous...

What is Acrylic Acid? Feb 16-2022

Acrylic acid resin is the copolymer that is compounded with main materials of vinyl monomer like acrylic acid, methacrylate, and styrene.Because of its excellent universality, and its rapid developmen...

Production Process and Technology Development of Acrylamide Feb 02-2022

Polyacrylamide belongs to the organic macromolecule polymers and it is widely used in the fields of oil exploitation, water treatment, mineral separation and papermaking and so on. Polyacrylamide is a...

Application Field and Preparation Method of MMA Methyl Jan 17-2022

Mma methyl is colorless crystal or transparent liquid with pungent odor. Soluble in hot water, soluble in most organic solvents such as ethanol and ether. Easily polymerized into water-soluble polymer...

Preparation Methods, Storage and Transportation of Adipic Products Jan 03-2022

1. The preparation method of adipic acidIn 1937, the American DuPont Company first realized the industrial production of adipic acid by oxidizing cyclohexanol (produced by hydrogenation of phenol) wit...

Precautions and Applications of Adipic Acid Products Dec 24-2021

Adipic acid, also known as hexanedioic acid, is an important organic dibasic acid that can undergo salt formation, esterification, amidation, etc., and can be polycondensed with diamines or glycols to...

The Difference Between Acrylamide and Polyacrylamide Dec 10-2021

1. The substance of acrylamide is different from polyacrylamide(1) PolyacrylamidePolyacrylamide is a linear polymer, and its products are mainly divided into two forms: dry powder and colloid types. A...

Migration and Transformation Behaviors of Acrylamide Nov 24-2021

Ⅰ. Migration behavior of acrylamideAccording to the structure of acrylamide, taking structure prediction method to estimate that acrylamide is not easy to be adsorbed by soil, which has high mobility...

Properties and Uses of Methyl Acrylate Nov 17-2021

Methyl acrylate is an organic compound, its molecular formula is C4H6O2. It is a transparent liquid with pungent smell. It slightly soluble in water, easily soluble in ethanol, ether, acetone and benz...

Principle of Micellar Polymerization of Acrylamide Nov 10-2021

Acrylamide is a widely used chemical raw material in the industrial field. It is a recognized neurotoxin and a possible human carcinogen. Acrylamide is a hard glassy solid at room temperature. The pro...

Uses of Methyl Methacrylate Nov 03-2021

Ⅰ. Methyl methacrylateMethyl methacrylate is mainly used in the processing of modern building materials and chemical products. From the definition of its own properties, it is an organic compound, al...

Butyl Acrylate Uses and Properties Oct 18-2021

Acrylic acid and its esters are widely used in industry. In the process of use, acrylate is often polymerized into polymer or copolymer. Butyl acrylate (as well as methyl ester, ethyl ester and 2-ethy...

Chemical Properties and Application Fields of Butanone Sep 23-2021

Butanone is a colorless and transparent liquid at room temperature, with the smell of acetone. It is an excellent solvent with low boiling point, soluble in water and organic solvents such as ethanol,...

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...

Application and Introduction of Methylacrylate Jun 22-2021

Ⅰ. Overview of methylacrylateAcrylic ester is the general term for acrylic acid and its homologous esters, and its general chemical formula is CH2=CHCOOR. The molecular formula of acrylic acid is (CH...

Use of Methyl Ethyl Ketone Jun 15-2021

1. What is methyl ethyl ketone?Methyl ethyl ketone is a kind of chemical product, colorless and transparent liquid, with acetone-like smell, volatile, and miscible with ethanol, ether, benzene, chloro...

A Brief Introduction and Characteristics of Acrylic Acid Jun 08-2021

1. What is acrylic acid?Acrylic acid is an important organic synthesis raw material and synthetic resin monomer, and it is a vinyl monomer with a very fast polymerization rate. Acrylic acid is also kn...

The Main Uses of Acrylic Acid Jun 01-2021

Acrylic acid is an important organic synthesis raw material and synthetic resin monomer, and it is a vinyl monomer with a very fast polymerization rate. Most of them are used to make acrylates such as...

Emergency Treatment of Maleic Anhydride Leakage May 24-2021

I. Hazards of maleic anhydride1. Health hazardsRoute of invasion: inhalation, ingestion and skin absorption. The dust and vapor of the product are irritant. Inhalation can cause pharyngitis, laryngiti...

Uses of Maleic Anhydride May 17-2021

I. Maleic anhydride uses1. It is used as the material to produce 1, 4-butanediol, γ- butyrolactone, tetrahydrofuran, succinic acid, unsaturated polyester resin, alkyd resin. It is also used in medici...

Synthesis of Maleic Anhydride May 10-2021

1. Introduction to maleic anhydrideMaleic anhydride, also known as MAH, is the anhydride of maleic acid. It is a colorless or white solid with acid taste at room temperature, and its molecular formula...

What is Ethyl Methyl Ketone May 03-2021

Ⅰ. What is ethyl methyl ketoneEthyl methyl ketone is an organic compound, its chemical formula is CH3COCH2CH3, and its molecular weight is 72.11. It is a colorless and transparent liquid with acetone...

Classification of Organic Compounds Apr 22-2021

There are many types of organic matter, which can be divided into two categories: hydrocarbons and hydrocarbon derivatives. According to the carbon frame structure of organic molecules, it can be divi...

Is the Resin Tooth Made of MMA Methacrylate Harmful to Human Body? Apr 15-2021

The resin teeth are made of MMA methacrylate. Mma methacrylate is toxic to the human body. Are resin teeth harmful to the human body?1. MMA methacrylate monomer has certain toxicity to human bodyMMA m...

Comparison of Properties of Butyl Acetate and Methyl Ethyl Ketone As Solvents Apr 08-2021

1. Introduction of methyl ethyl ketoneMethyl ethyl ketone (MEK for short), also known as methyl ethyl ketone and 2-butanone, is an excellent organic solvent.2. Butyl acetate and methyl ethyl ketone so...

What Is the Main Use of Adipic Acid? Apr 01-2021

1. The chemical properties of adipic acidAdipic acid is a white crystalline powder with a melting point of 153°C, a density of 1.360g/cm³, mp153°C, and a normal boiling point of 337.5°C. It starts...

The Properties and Uses of the Phthalic Anhydride Mar 22-2021

1. Introduction to the phthalic anhydrideThe phthalic anhydride is also known as the phthalic acid anhydride; 1,2-benzenedicarboxylic acid an-hydride; 1,2-benzenedicarboxylic anhydride; 1,3-isobenzofu...

Phthalic Anhydride and Its Chemical Properties Mar 15-2021

1. Phthalic anhydride meaningThe phthalic anhydride meaning: phthalic anhydride is also known as the phthalic acid anhydride; 1,2-benzenedicarboxylic acid an-hydride; 1,2-benzenedicarboxylic anhydride...

Overview of the Development of the Methyl Ethyl Ketone Industry Mar 08-2021

The English abbreviation of methyl ethyl ketone is MEK. The chemical MEK has the characteristics of good solubility, fast volatilization, stability and low toxicity. It is a colorless, flammable and t...

What Are the Uses of Butanone? Mar 01-2021

What are the uses of butanone? Let us find out together.1. The butanone uses include that: it is used as the solvent for cellulose acetate, acrylic resin, alkyd resin, paint, ink, etc., as the binder ...

Introduction of the Acrylamide Toxicity Feb 22-2021

1. The introduction to the acrylamideAcrylamide belongs to the moderately toxic type. It has a certain irritating effect on the eyes and skin. It can be absorbed through the skin, respiratory tract an...

Detailed Introduction of the Methyl Ethyl Ketone Feb 15-2021

1. Introduction to the methyl ethyl ketoneMethyl ethyl ketone is also called butanone, 2-butanone, ethyl methyl ketone and methyl acetone. Abbreviation: MEK. The molecular formula is C4H8O, the molecu...

Some Detailed Information about the Acrylic Acid Uses? Feb 08-2021

Ⅰ. The main uses of acrylic acidIt is used in the fields of acrylates, water reducers, water treatment agents, etc.Ⅱ. Introduction of the acrylic acidAcrylic acid is an important organic synthesis r...

What Are the Functions and Uses of Acrylamide? Feb 01-2021

Acrylamide is often used in our lives. There are many classifications of acrylamide, and there are many uses for acrylamide. It plays a very important role in our production and life. Some people are ...