顺酐的特性

Characteristics of Maleic Anhydride

物理性质：顺酐是一种有强烈刺激气味的无色结晶粉末，室温下为白色晶体。其密度为1.484g/cm³，熔点为51-56℃，沸点为202℃，闪点为103.3℃。

Physical properties: Maleic anhydride is a colorless crystalline powder with a strong pungent odor, and is a white crystal at room temperature. Its density is 1.484g/cm ³, melting point is 51-56 ℃, boiling point is 202 ℃, and flash point is 103.3 ℃.

化学性质：顺酐可溶于乙醇、乙醚和丙酮，但难溶于石油醚和四氯化碳。它可以与热水作用形成马来酸。

Chemical properties: Maleic anhydride is soluble in ethanol, ether, and acetone, but insoluble in petroleum ether and carbon tetrachloride. It can react with hot water to form maleic acid.

顺酐的用途

The use of maleic anhydride

化学工业：

Chemical Industry:

聚酯树脂：顺酐是不饱和聚酯树脂和醇酸树脂的重要原料。

Production of polyester resin: Maleic anhydride is an important raw material for producing unsaturated polyester resin and alkyd resin.

有机合成：在有机合成中，顺酐可用于制造丁二酸、丁二酸酐等化合物。

Organic synthesis: In organic synthesis, maleic anhydride can be used to manufacture compounds such as succinic acid and succinic anhydride.

医药工业：

Pharmaceutical industry:

顺酐用于制造长效磺胺等药物，以及其他各种医药中间体。

Maleic anhydride is used to manufacture long-acting sulfonamide and other pharmaceutical intermediates.

农药工业：

Pesticide industry:

作为农药马拉硫磷、低毒农药4049、长效碘胺等的原料。

As a raw material for pesticides such as malathion, efficient and low toxicity pesticide 4049, and long-acting iodamine.

染料和涂料工业：

Dyes and Coatings Industry:

顺酐用于制造染料中间体，以及涂料、油墨助剂。

Maleic anhydride is used to manufacture dye intermediates, as well as coatings and ink additives.

其他应用：

Other applications:

顺酐还可用作脂肪和油的防腐剂。

Maleic anhydride can also be used as a preservative for fats and oils.

在食品工业中，顺酐用于制造酸味剂苹果酸及酒石酸等。

In the food industry, maleic anhydride is used to manufacture acidic agents such as malic acid and tartaric acid.

作为环氧树脂的固化剂。

As a curing agent for epoxy resin.

注意事项

matters needing attention

由于顺酐属于八类危险品，其具有强烈的刺激性气味，因此在处理和储存时需要特别小心。

Due to the fact that maleic anhydride belongs to Class 8 hazardous materials and has a strong irritating odor, special care is required during handling and storage.

在处理顺酐时，应采取适当的防护措施，如戴防毒口罩、穿化学防护服等。

When handling maleic anhydride, appropriate protective measures should be taken, such as wearing gas masks and chemical protective clothing.

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