查询词典 sulphuric acid

A clear liquid carboxylic acid used in perfumes and drugs.

一种清亮的液体羧基酸，用于香水和药物中。

Chapter 2; Synthesis of 4,7,- dichlorine -5 (and 6)- carboxylic acid Rhodamine bright fluorescent dye

第二章 4，7，-二氯-5(和6)-羧酸罗丹明荧光染料的合成研究

An unsaturated liquid carboxylic acid used in the manufacture of ''.

一种不饱和液态羧基酸，用于制造''。

Amino acids Compounds containing both carboxylic acid and amino group s in their molecules.

氨基酸：在其分子中包含羧酸和氨基基团的化合物。

The influences of temperature, time, carboxylic acid dosage and catalyst dosage on the yield and optical purity were discussed.

着重研究了反应温度、反应时间、羧酸溶剂用量和催化剂的用量对产物收率和光学纯度的影响，获得了最佳工艺条件。

Especially preferred are waxes and polyamide polymers containing at least one carboxylic acid group as the metal chelating group.

尤其是首选的是含蜡和螯合金属的至少一个羧酸组聚酰胺聚合物。

In the reaction, some aniline is completely oxidized to CO2 or partially oxidized to carboxylic acid.

在反应中有一部分苯胺被完全氧化或部分氧化成CO2或羧酸，

Due to the higher acidity of the TFM carboxylic acid, the degree of ionization will be high at all of the pH values studied.

由于TFM羧酸的强酸性，其离子化的程度是所有研究物中pH值最高的。

The disadvantages of conventional soaps can be avoided by replacing the carboxylic acid group with a sulfate.

可通过将肥皂的羧基用硫酸盐代替来改变传统肥皂的缺点。

In this paper, the direct esterification of carboxylic acid and alcohol by using dealuminated USY as catalyst was studied.

研究脱铝USY 催化羧酸与醇的直接酯化反应，考察了催化剂硅铝比对酯化反应的影响及不同类型酸酶酯化的一般规律。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48