Maleic anhydride is also known as maleic anhydride (MAH) or maleic anhydride or dehydrated malic acid, referred to as maleic anhydride. This product is toxic and more toxic than maleic acid. It is an anhydride of maleic acid. It is a colorless or white solid with acid taste at room temperature, and its molecular formula is c4h2o3.

顺酐厂家

Maleic anhydride manufacturer

储存注意事项：储存于阴凉、干燥、通风良好的库房。远离火种、热源。保持容器密封。应与氧化剂、还原剂、酸类、食用化学品分开存放，切忌混储。配备相应品种和数量的消防器材。储区应备有合适的材料收容泄漏物；

Storage precautions: store in cool, dry and well ventilated warehouse. Keep away from fire and heat sources. Keep the container sealed. It should be stored separately from oxidants, reducing agents, acids and edible chemicals, and should not be mixed. Fire fighting equipment of corresponding variety and quantity shall be provided. The storage area should be equipped with suitable materials to hold the leakage;

聚酯树脂，醇酸树脂，农药，富马酸，纸张处理剂等。 马来酸酐是一种重要的有机化学中间体，可用于制造塑料工业中的增塑剂。 造纸工业中的纸张加工剂; 合成树脂工业中的不饱和聚酯树脂; 涂料工业中的醇酸涂料; 中马拉硫磷的合成; 制药行业磺胺药。 近年来，主要用作原料的琥珀酸和酒石酸工业迅速发展，它们在工程建设，食品调味剂和生物溶剂中的应用也在扩大。 由马来酸酐的下游衍生物，例如1，4-丁二醇，四氢呋喃，γ-丁内酯等也已得到很大发展。

Production of polyester resin, alkyd resin, pesticides, fumaric acid, paper treatment agent and so on. Maleic anhydride is an important organic chemical intermediate, which can be used to produce plasticizer in plastic industry. The paper processing agent in paper industry; unsaturated polyester resin in synthetic resin industry; alkyd coating in coating industry; malathion synthesis in production; sulfonamides production in pharmaceutical industry. In recent years, the industry of succinic acid and tartaric acid, which are mainly used as raw materials, are developing rapidly. Their applications in engineering construction, food seasoning and biological solvent are also expanding. The downstream derivatives produced by maleic anhydride, such as 1,4-butanediol, tetrahydrofuran and γ - butyrolactone, have also been greatly developed.

顺丁烯二酸酐

Maleic anhydride

物化性质：室温下为白色颗粒，针状，薄片，棒状，块状或团块，具有强烈刺激性。 相对密度1.48，熔点52.8°C，沸点202.2°C，在较低温度(60-80°C)下也能升华，溶于乙醇，乙醚和丙酮，与水形成马来酸 。 可燃物，其蒸气和粉尘与空气混合形成爆炸性混合物。

Physical and chemical properties: white particles at room temperature, needle like, thin, rod-shaped, block or lump, with strong irritation. The relative density is 1.48, the melting point is 52.8 ° C, and the boiling point is 202.2 ° C. It can also be sublimated at a lower temperature (60-80 ° C). It is soluble in ethanol, ether and acetone, and forms maleic acid with water. Combustible materials, whose vapor and dust are mixed with air to form an explosive mixture.

琥珀酸酐

Succinic anhydride

性质：无色针状或粒状晶体，溶于乙醇，氯仿和四氯化碳，微溶于水和乙醚。 可用热水将其水解为琥珀酸。 mp119.6; bp261oC，d1.503。

Properties: colorless needle or granular crystal, soluble in ethanol, chloroform and carbon tetrachloride, slightly soluble in water and ether. It can be hydrolyzed into Succinic Acid by hot water. mp119.6; bp261oC，d1.503。

用途：GB2760-90中规定的食品加工助剂，用于合成药物，农药，酯和树脂，也可用于琥珀酸的合成和分析试剂。

Uses: food processing aids specified in gb2760-90, used in the synthesis of drugs, pesticides, esters and resins, as well as the synthesis and analysis reagent of succinic acid.