Standard Test Method for Determination of Percent Hydroxyl on Cellulose Esters by Potentiometric Titration-Alternative Method

用电位滴定转换方法对纤维素酯中羟基百分率测定的标准试验方法

属类：行业标准名称-国际标准-ASTM D 5897-1996

Test Method for Hydroxyl Groups by Pyromellitic Dianhydride Esterification

用均苯四酸二酐的脂化作用测定羟基团的试验方法

属类：行业标准名称-国际标准-ASTM E 335-1996

The free hydroxyl ion is involved in a further reaction with the silica network

游离的氢氧离子会进一步和硅氧网络反应。

属类：综合句库--

With three hydroxyl (-OH)groups, it can form three types of esters (monoglycerides, diglycerides, and triglycerides). Mono-and diglycerides are common food additives.

有3个羟基,可形成3种酯(甘油单酯、甘油二酯、甘油三酯),甘油单酯和甘油二酯是常见的食物添加剂。

属类：化学及生命科学-化学-

In the monosaccharide derivatives known as sugar alcohols, the carbonyl oxygen is reduced to a hydroxyl group. For example D-glyceraldehyde can be reduced to glycerol. However, this sugar alcohol is no longer designated D or L

在单糖衍生为糖醇中,羰基氧还原为羟基。例如D-甘油醛可以还原为甘油,此糖醇不在标记为D或L

属类：化学及生命科学-化学-化学习题

The number of other substituent groups (R)on that carbon atom make the alcohol a primary (RCH2OH), secondary (R2CHOH), or tertiary (R3COH)alcohol. Many alcohols occur naturally and are valuable intermediates in the synthesis of other compounds because of the characteristic chemical reactions of the hydroxyl group.

在那个碳原子上别的置换集团(R)的数目决定了这种醇类是一级醇(RCH2OH)、二级醇(R2CHOH),还是三级醇(R3COH)。自然界里有许多醇,在其它化合物的合成过程中是有价值的中间物,这主要是因为羟基的化学反应特性。

属类：化学及生命科学-化学-

ADHESIVES. DETERMINATION OF VALUE AND/OR HYDROXYL CONTENT. (EUROPEAN STANDARD EN 1240).

粘接剂.羟基含量或/和值的测定

属类：行业标准名称-国际标准-NF T76-002-1998

Products of these numerous reactions include fats and waxes, detergents, plasticizers, emulsifiers, lubricants, emollients, and foaming agents. Ethanol (grain alcohol)and methanol (wood alcohol)are the best-known alcohols with one hydroxyl group.

这多种化学反应的产物包括脂肪和蜡类、洗涤剂、增塑剂、乳化剂、润滑剂、软化剂以及起泡剂。乙醇(酒精)和甲醇(木醇)是最有名的醇类,含有一个羟基。

属类：化学及生命科学-化学-

Analysis and Discussion on Hydroxyl Value of Fatty Alcohol Polyoxyethylene Ether

脂肪醇聚氧乙烯醚羟值分析探讨

属类：行业术语-中文论文标题-

Methods of analysis of fats and fatty oils-Other methods-Determination of the hydroxyl value and the acetyl value

脂肪和油脂的分析方法.其他方法.羟基和乙酰基值的测定

属类：行业标准名称-国际标准-BS 684-2.9-1977