查询词典 anhydride

The method is divided into two procedures: reacting antimonous oxide with acetic anhydride, and then the product reacting with stearic acid.

三氯化锑与碱金属或碱土金属硬脂酸盐反应［4，5］；2）氧化锑与硬脂酸在有机溶剂中反应［6］。

Phthalic anhydride is an important organic chemical material and is mainly applied for such fields as plasticizer, alkyd, unsaturated polyester resin, dyestuff and medicine.

苯酐是一种重要的苯有机化工原料，主要应用于增塑剂、醇酸树酯、不饱和聚酯树脂、染料、医药等领域。

Maleopimaric acid can be synthesized by Diels-Alder reaction from rosin and maleic anhydride by phosphato-molybdic acid .

以杂多酸磷钼酸为催化剂合成了马来海松酸。

M Trifluoromethylacetophenone was synthesized by the reaction of acetic anhydride with the Grignard reagent of 3 bromo benzene prepared from trifluoromethylbenzene , in 40% overall yield.

以三氟甲基苯为原料，经过溴化、格氏反应后与乙酸酐反应合成间三氟甲基苯乙酮，总收率40%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。