What kind of chemical substance is maleic anhydride? Today I'd like to introduce you. Maleic anhydride, also known as maleic anhydride, is often referred to as maleic anhydride. Maleic anhydride is a colorless crystal with strong pungent smell, boiling point 202 ℃, easy to sublimate. It is mainly prepared by oxidation of n-butane or butene, which is the raw material for the production of unsaturated polyester.

順丁烯二酸酐

Maleic anhydride

毒性

toxicity

順丁烯二酸酐能刺激皮膚及黏膜。當人接觸高溫液體時，其毒性更大，能造成皮膚灼傷，它會造成結膜、角膜紅腫。它如果讓人嚴重中毒會導致視力減退甚失明。經實驗室試驗數據是對大鼠經口LD50為400mg/kg。小鼠經口LC50為60～465mg/kg。順丁烯二酸酐在空氣中濃度不能太高，高允許濃度0.25mg/L

Maleic anhydride can stimulate skin and mucous membrane. When people come into contact with high temperature liquid, its toxicity is greater, can cause skin burns, it will cause conjunctiva, corneal swelling. If it makes people seriously poisoned, it will lead to vision loss and even blindness. The experimental data showed that the oral LD50 of rats was 400 mg / kg. The oral LC50 of mice was 60-465mg / kg. The concentration of maleic anhydride in the air should not be too high, and the high allowable concentration is 0.25mg/l

急救措施

First aid measures

皮膚接觸順丁烯二酸酐，就馬上要脫去衣著，用大量清水沖洗，到醫院。眼睛接觸：立即提起眼瞼，用大量流動清水或生理鹽水徹底沖洗少15分鐘就醫。

In case of skin contact with maleic anhydride, take off your clothes immediately, rinse with plenty of water and go to the hospital for treatment. Eye contact: lift the eyelids immediately and rinse thoroughly with plenty of flowing water or normal saline for at least 15 minutes.