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.

順酐廠家

Maleic anhydride manufacturer

儲存注意事項：儲存于陰涼、干燥、通風良好的庫房。遠離火種、熱源。保持容器密封。應與氧化劑、還原劑、酸類、食用化學品分開存放，切忌混儲。配備相應品種和數量的消防器材。儲區應備有合適的材料收容泄漏物；

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;

聚酯樹脂，醇酸樹脂，農藥，富馬酸，紙張處理劑等。 馬來酸酐是一種重要的有機化學中間體，可用于制造塑料工業中的增塑劑。 造紙工業中的紙張加工劑; 合成樹脂工業中的不飽和聚酯樹脂; 涂料工業中的醇酸涂料; 中馬拉硫磷的合成; 制藥行業磺胺藥。 近年來，主要用作原料的琥珀酸和酒石酸工業迅速發展，它們在工程建設，食品調味劑和生物溶劑中的應用也在擴大。 由馬來酸酐的下游衍生物，例如1，4-丁二醇，四氫呋喃，γ-丁內酯等也已得到很大發展。

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.

順丁烯二酸酐

Maleic anhydride

物化性質：室溫下為白色顆粒，針狀，薄片，棒狀，塊狀或團塊，具有強烈刺激性。 相對密度1.48，熔點52.8°C，沸點202.2°C，在較低溫度(60-80°C)下也能升華，溶于乙醇，乙醚和丙酮，與水形成馬來酸 。 可燃物，其蒸氣和粉塵與空氣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

性質：無色針狀或粒狀晶體，溶于乙醇，氯仿和四氯化碳，微溶于水和乙醚。 可用熱水將其水解為琥珀酸。 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中規定的食品加工助劑，用于合成藥物，農藥，酯和樹脂，也可用于琥珀酸的合成和分析試劑。

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.