说到顺酐可能很多人不太清楚，听起来有点陌生，今天氢氧化钾生产厂的小编给你详细介绍一下顺酐的由来以及在哪里作用。

When it comes to maleic anhydride, many people may not know it, which sounds strange. Today, the editor of the potassium hydroxide factory will give you a detailed introduction to the origin and function of maleic anhydride.

顺酐的由来

Origin of maleic anhydride

顺酐全名为顺丁烯二酸酐，又称为马来酸酐，是一种有强烈刺激气味的无色结晶粉末，于1834年次由苹果酸得到。早期，顺丁烯二酸酐是通过苯的催化氧化制备，但为了降低生产成本，改用正丁烷氧化法制取。

The full name of maleic anhydride is maleic anhydride, also known as maleic anhydride. It is a colorless crystalline powder with a strong pungent smell. It was obtained from malic acid in 1834. In the early days, maleic anhydride was prepared by catalytic oxidation of benzene, but in order to reduce production cost, it was prepared by n-butane oxidation.

顺酐由苯经催化氧化或由丁烯或丁烷用空气氧化而制得，溶于乙醇、乙醚和丙酮，难溶于石油醚和四氯化碳，与热水作用而成马来酸；

Maleic anhydride is prepared by catalytic oxidation of benzene or oxidation of butene or butane with air. It is soluble in ethanol, ether and acetone, insoluble in petroleum ether and carbon tetrachloride, and reacts with hot water to form maleic acid;

顺酐的外观是白色片状结晶，有粉末状、针状、片状、丸状、棒状、团块状或熔融物质，相对密度是1.480，熔点在52.8℃，沸点是202.2℃，闪点：110.0℃。

The appearance of maleic anhydride is white flake crystal with powder, needle, flake, pill, rod, lump or molten substances. The relative density is 1.480, the melting point is 52.8 ℃, the boiling point is 202.2 ℃, and the flash point is 110.0 ℃.

顺酐在哪里作用

Where does maleic anhydride act

顺酐用于双烯合成、制药物、农药、染料中间体及制聚酯树脂、醇酸树脂、马来酸等有机酸，也用作脂肪和油防腐剂等，生产不饱和聚酯树脂、醇酸树脂、长效碘胺的原料。也是涂料、马来松香、聚马来酐、顺酐-苯乙烯共聚物的共聚单体，也是生产油墨助剂、造纸助剂、增塑剂、酒石酸、富马酸、四氢呋喃等的有机化工原料。

Maleic anhydride is used in diene synthesis, medicine, pesticide, dye intermediate, polyester resin, alkyd resin, maleic acid and other organic acids, as well as fat and oil preservatives, to produce unsaturated polyester resin, alkyd resin and long-acting iodamine. It is also a comonomer of coatings, maleic rosin, polymaleic anhydride, maleic anhydride styrene copolymer, and an organic chemical raw material for the production of ink additives, papermaking additives, plasticizers, tartaric acid, fumaric acid, tetrahydrofuran, etc.

急救措施

First aid measures

皮肤接触：脱去污染的衣着，立即用水冲洗少15分钟。若有灼伤，就医。对少量皮肤接触，避免将物质播散面积扩大。注意患者保暖并且保持安静。吸入、食入或皮肤接触该物质可引起迟发反应。确保医务人员了解该物质相关的个体防护知识，注意自身防护。

Skin contact: Take off the contaminated clothes and immediately flush with water for at least 15 minutes. In case of burns, seek medical treatment. Contact a small amount of skin to avoid expanding the spread area of the substance. Keep the patient warm and quiet. Inhalation, ingestion or skin contact with the substance may cause delayed reactions. Ensure that medical personnel understand the personal protection knowledge related to this substance and pay attention to their own protection.

眼睛接触：立即提起眼睑，用流动清水或生理盐水冲洗少15分钟。就医。

Eye contact: immediately lift the eyelids and wash them with flowing clean water or normal saline for at least 15 minutes. Get medical attention.

吸入：迅速脱离现场空气新鲜处。保持呼吸道通畅。必要时进行人工呼吸。就医。如果呼吸困难，给予吸氧。如果患者食入或吸入该物质不要用口对口进行人工呼吸，可用单向阀小型呼吸器或其他适当的医疗呼吸器。

Inhalation: quickly leave the site to a place with fresh air. Keep the respiratory tract unobstructed. Perform artificial respiration when necessary. Get medical attention. If breathing is difficult, give oxygen. If the patient ingests or inhales the substance, do not perform mouth to mouth artificial respiration, use a one-way valve small respirator or other appropriate medical respirators.

食入：立即漱口，给饮牛奶或蛋清。就医。

Ingestion: Rinse your mouth immediately and drink milk or egg white. Get medical attention.

要将顺酐储存于阴凉、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。更多使用的事项就来我们网站http://www.jinhao360.com咨询吧！

Maleic anhydride shall be stored in a cool, dry and well ventilated warehouse. Keep away from kindling and heat source. Keep container sealed. It shall be stored separately from oxidants, reducing agents, acids and edible chemicals, and shall not be mixed. For more information, please visit our website http://www.jinhao360.com Consult!