Phthalic anhydride, called phthalic anhydride, is a cyclic anhydride formed by dehydration of phthalic acid in molecules. Phthalic anhydride is a white solid and is an important raw material in the chemical industry, especially for the manufacture of plasticizers.

Purpose:

1. Phthalic anhydride is one of the most important organic chemical raw materials. Its main derivative is dibutyl phthalate. Dioctyl ester and diisobutyl ester. Plasticizer; Can also be used to produce unsaturated polyester resin; Alkyd resin; Dyes and pigments; Various coatings; Food additives; Medical laxatives in phenolphthalein pesticides; Equine and saccharin sodium, etc.

2. This product is used as epoxy resin curing agent. The product is an important organic chemical raw material, mainly used in the production of phthalates plasticizers, coatings, saccharin, dyes and organic compounds, pesticides, fungicides, rubber processing AIDS and important intermediates in photosensitive materials.

3. Used as an analytical reagent. Intermediates of organic synthesis. The dye industry is used to prepare important intermediates, such as anthraquinone, 2-chloroanthraquinone, 1, 4-dihydroxyanthraquinone, and dyes, such as phthalocyanine blue BS, phthalocyanine blue BX, and phthalocyanine Blue B.

4. Used as curing agent of epoxy resin, the reference amount is 30-50 mass parts, and the application period of 100g resin complex is rt/6h, 120℃/1.5h. Curing conditions: 100/2h + 150°C/5h or 100°C/12h, 140°C/8h, 200°C/6h. In the curing process, the heat release is small, the cured product has good electrical properties and mechanical strength, and the thermal deformation temperature is 110-152℃.

5. It is an important organic chemical raw material. In the synthetic resin industry, it is used to produce polyester resin, amino resin, unsaturated polyester resin, alkyd resin and so on.

The dye industry is used to prepare dye intermediates, such as anthraquinone, chloranthracene dihydroxy-anthraquinone and phthalocyanine blue BS, phthalocyanine blue BX and phthalocyanine blue B dyes. The plastics industry is used to prepare plasticizers, such as dibutyl phthalate, dioctyl phthalate and mixed esters. It is also an important intermediate in the manufacture of many drugs, paints and organic compounds.

6. Used in the manufacture of plasticizers, dibutyl phthalate, resins and dyes.

Storage precautions:

Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat. The packing must be sealed and moisture-proof. Should be stored separately from oxidants, reducing agents, acids and bases. Equipped with appropriate varieties and quantities of fire equipment. Storage areas should be equipped with suitable materials to prevent spills.