酐

Sulfur method replaced by acetic anhydride method for chloroacetic production is the trends in domestic.

指出在国内用醋酐法代替硫磺法生产氯乙酸的必然趋势。

This article describes the production status, and discusses the strongpoint and shortcoming of using differente catalyst, sulfur and acetic anhydride .

对比两种催化剂的实际生产情况，阐述用硫磺以及用醋酐的优缺点。

Then add, in the following order, 93±3 mg (0.5 mmol) of ferrocene, 0.35 mL of acetic anhydride, and 0.1 mL of 85% phosphoric acid.

然后按以下的次序，加入93±3 mg (0.5 mmol)的二茂铁，0.35ml的乙酐，和0.1ml 85%的磷酸。

Ferrocene will be acetylated by the action of phosphoric acid* and acetic anhydride*.

二茂铁可以与磷酸*和乙酐*作用而被乙醯化。

Abstract］ Objective To discuss the cooperation of dextran-40 and urokinase on anti-platelet agglutination.

目的 探讨低分子右旋糖酐与尿激酶在抗血小板聚集上的协同作用。

Diagnostic criteria for AKI are proposed based on acute alterations in serum creatinine or urine output.

AKI的诊断标准基于血清肌酐或尿排出量的急性改变。

Waste minimization in ammonolysis process of O,O-dimethylphosphorochloridothioate;2. An Investigation on the Micelle-Catalytic Hydrolysis and Ammonolysis of Carboxylic Acid Esters;3. The final product is generated by ammonolysis of the compound under high pressure.

以4-溴-1，8-萘酐为原料，用2，4-二甲基苯胺在醋酸中与之反应得到N-2′，4′-二甲基苯基-4-溴-1，8-萘酰亚胺，然后将NDNA在高压下用氨水进行氨解得到最终产品。

Introduced the market demand of anhydride of domestic and international benzene and price case and development trend.

介绍了国内外苯酐的市场需求和价格情况以及发展趋势。

With the rapid development of related trades, the demand of markets for phthalic anhydride growths more rapidly.

随着相关行业的快速发展，市场对苯酐的需求量增长较快。

So the construction of this project can change the distribution structure of the production of maleic anhydride in china

因此本项目的建设，可以改善我国顺酐生产布局结构。

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。