The new method, which entails the use of the anhydride of trifluoracetic acid, gives the purified esters in yields of 60–90 per cent.

Vinegar contains substances like histamine, sulfites, and salicylates that can trigger allergy-like symptoms. It's also made of acetic acid, which may upset your digestive tract and cause symptoms ...

打开微信，点击底部的“发现”， 使用“扫一扫”即可将网页分享到朋友圈。 分享： 2024/10/18 17:51:22 导读： 美国环境保护局(EPA)提议：将16种单独的PFAS和15个PFAS类别（即超过100种单独的PFAS）添加到有毒物质释放清单中，并将其指定为特别关注的化学物质。 2024 ...