顺酐，又称顺丁烯二酸酐，马来酸酐，2,5-呋喃二酮等。斜方晶系无色针状或片状晶体。有强烈刺激气味，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。主要用于生产不饱和聚酯树脂、醇酸树脂、农药马拉硫磷、高能效低毒农药4049、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, also known as maleic anhydride, maleic anhydride, 2,5-furanedione, etc. Orthorhombic crystals are colorless needle-shaped or flaky crystals. It has a strong pungent smell and is soluble in ethanol, ether and acetone, but insoluble in petroleum ether and carbon tetrachloride. It reacts with hot water to form maleic acid. It is mainly used to produce unsaturated polyester resin, alkyd resin, pesticide malathion, high-energy and low-toxicity pesticide 4049, and long-acting iodamine. It is also a comonomer of paint, maleic rosin, polymaleic anhydride, maleic anhydride-styrene copolymer, and an organic chemical raw material for the production of ink additives, paper additives, plasticizers, tartaric acid, fumaric acid, tetrahydrofuran, etc.
顺酐的应用范围
Application range of maleic anhydride
顺酐主要应用于玻璃钢行业的原料不饱和聚酯树脂（UPR）；加氢类产品中的1，4-丁二醇（BDO）、四氢呋喃（THF）和γ-丁内酯（GBL）；也应用于涂料、润滑油添加剂、农药、酒石酸、琥珀酸及酐、四氢苯酐、改性松香等方面。
Maleic anhydride is mainly used in unsaturated polyester resin (UPR), the raw material of glass fiber reinforced plastics industry; 1,4-Butanediol (BDO), tetrahydrofuran (THF) and γ- Butyrolactone (GBL); It is also used in coatings, lubricant additives, pesticides, tartaric acid, succinic acid and anhydride, tetrahydrophthalic anhydride, modified rosin, etc.
不饱和聚酯树脂（UPR）：是热固型树脂的主要品种之一，由于其优良的机械性能、电性能和耐化学腐蚀性能，且加工工艺简便，因此应用广泛。目前可以经营400余个牌号的UPR，主要品种包括邻苯型、间苯型、对苯型、双酚A型等，按用途和功能分类包括通用树脂、耐化学品树脂、阻燃树脂、浇注树脂、柔性树脂、人造大理石、BMC与DMC树脂、装饰类树脂和特种树脂等。的UPR市场中，增强类（玻璃钢用）树脂比例只占40％，而用于非增强类树脂的比例高达60％，在非增强类树脂中工艺树脂占34％，纽扣树脂占24％，人造大理石占19％。
Unsaturated polyester resin (UPR): It is one of the main varieties of thermosetting resin. It is widely used because of its excellent mechanical properties, electrical properties, chemical corrosion resistance, and simple processing technology. At present, more than 400 brands of UPR can be operated in China. The main varieties include o-benzene, m-benzene, p-benzene, bisphenol A, etc. According to the purpose and function, UPR includes general resin, chemical resistant resin, flame retardant resin, casting resin, flexible resin, artificial marble, BMC and DMC resin, decorative resin and special resin. In China's UPR market, the proportion of reinforced resin (for FRP) accounts for only 40%, while the proportion of non-reinforced resin is as high as 60%. In the non-reinforced resin, process resin accounts for 34%, button resin accounts for 24%, and artificial marble accounts for 19%.
顺酐的注意事项
Precautions for maleic anhydride
泄漏应急处理
Leakage emergency treatment
顺酐生产厂家认为应该隔离泄漏污染区，周围设警告标志，建议应急处理人员戴好防毒面具，穿化学防护服。不要直接接触泄漏物，用洁净的铲子收集于干燥洁净有盖的容器中，运废物处理场所。如大量泄漏，收集回收或无害处理后废弃。
The maleic anhydride manufacturer believes that the leakage pollution area should be isolated and warning signs should be set around it. It is recommended that emergency treatment personnel wear gas masks and chemical protective clothing. Do not contact the leakage directly. Collect it in a dry, clean and covered container with a clean shovel and transport it to the waste disposal site. If there is a large amount of leakage, it shall be collected and recycled or discarded after harmless treatment.
防护措施
Protective measures
呼吸系统防护：空气中浓度超标时，应该佩带防毒口罩。
Respiratory protection: When the concentration in the air exceeds the standard, you should wear a gas mask.
眼睛防护：戴防护眼镜。
Eye protection: wear safety glasses.
防护服：穿工作服(防腐材料制作)。
Protective clothing: wear work clothes (made of anti-corrosion materials).
手防护：戴橡皮手套。
Hand protection: wear rubber gloves.
其它：工作后，淋浴更衣。注意个人清洁卫生。
Others: shower and change clothes after work. Pay attention to personal hygiene.
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。
Skin contact: take off contaminated clothes and wash with water immediately for at least 15 minutes. If you have burns, seek medical treatment.
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 with flowing water or physiological 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。
Inhalation: quickly leave the site to fresh air. Keep respiratory tract unobstructed. Perform artificial respiration if necessary. Get medical attention.
食入：误服者立即漱口，给饮牛奶或蛋清。就医。
Ingestion: Rinse mouth immediately and drink milk or egg white. Get medical attention.
The scope of application of maleic anhydride and relevant preventive measures will be explained here. If you have any doubts or needs about this, please come to our website http://www.jnjhhg.cn Consult!
