順酐，化學式為C4H8O2，又稱丁內酯，是一種無色透明的液體，具有蘋果氣味。以下是
順酐廠家介紹的關于順酐的一些內容：
Maleic anhydride, chemical formula C4H8O2, also known as butyrolactone, is a colorless and transparent liquid with an apple odor. The following are some contents about maleic anhydride introduced by maleic anhydride manufacturers:
順酐的制備：順酐的制備主要通過丁二酸和醇的酯化反應制得，也可通過四氧化三鎢催化劑的催化下，氧化丁烯制得。
Preparation of maleic anhydride: The preparation of maleic anhydride is mainly achieved through the esterification reaction of succinic acid and alcohol, or through the oxidation of butene under the catalysis of a tungsten trioxide catalyst.
順酐的用途：順酐廣泛用作溶劑、塑化劑、合成樹脂、涂料、藥品、香料等領域，是一種重要的有機化工原料。
Purpose of maleic anhydride: Maleic anhydride is widely used as a solvent, plasticizer, synthetic resin, coating, pharmaceuticals, spices, and other fields. It is an important organic chemical raw material.
順酐的性質：順酐具有較高的沸點和熔點，易揮發，易溶于乙醇、乙醚、苯等有機溶劑，不溶于水。
Properties of maleic anhydride: Maleic anhydride has a high boiling point and melting point, is volatile, easily soluble in organic solvents such as ethanol, ether, benzene, and is insoluble in water.
順酐的危害性：順酐具有刺激性氣味，對皮膚、眼睛、呼吸系統有刺激作用，長期接觸可引起中毒和過敏反應。
Harmfulness of maleic anhydride: Maleic anhydride has a pungent odor, which can stimulate the skin, eyes, and respiratory system. Long-term exposure can cause poisoning and allergic reactions.
順酐的儲存和運輸：順酐應儲存于陰涼、干燥、通風良好的地方，避免陽光直射和高溫，運輸時應注意防止碰撞和泄漏。
Storage and transportation of maleic anhydride: Maleic anhydride should be stored in a cool, dry, well ventilated place, avoiding direct sunlight and high temperatures. During transportation, attention should be paid to preventing collisions and leaks.
總之，順酐是一種重要的有機化工原料，廣泛應用于溶劑、塑化劑、合成樹脂、涂料、藥品、香料等領域，使用時需要注意其危害性，儲存和運輸時需要注意防止碰撞和泄漏。更多事項就來我們網站
http://www.topcax.com咨詢！
In short, maleic anhydride is an important organic chemical raw material, widely used in solvents, plasticizers, synthetic resins, coatings, pharmaceuticals, spices, and other fields. Attention should be paid to its hazards when using it, and attention should be paid to preventing collisions and leaks during storage and transportation. For more information, please visit our website http://www.topcax.com consulting service
