Demulsification and separation should be done to analyze its content, its saponification and acid value were analyzed after separation, then the ester content can be obtained.
酯类油性剂不溶于水，必须用乳化剂将其乳化，分析其含量必须先破乳、分离，分离后分析其皂化值及酸值，即可得到酯含量。
The acid value also reduces gradually from the early stage of fat formation to the stage of maturity, so are the specific gravity and saponification value.
不同时期油脂的特性是在形成初期酸值高，而在成熟时酸值降低，比重、皂化值也有所降低。
A new technology of wet method for synthesis of magnesium stearate by saponification of stearic acid with fleshly formed magnesium hydroxide in aqueous medium is described.
介绍一种在水介质中由硬脂酸与新生成的氢氧化镁进行皂化反应合成硬脂酸镁的湿法新工艺。
Process for preparing rich tran-chysanthemic acid (I) by isomerization and saponification of ethyl chrysanthemate has been studied.
研究了菊酸乙酯顺反异构、皂化制富反式菊酸的工艺条件。
Results the acid value and the saponification value in Cera Chinensis could be determined successfully.
结果可顺利测得虫白蜡酸值、皂化值。
Under alkaline conditions, oil produces glycerol saponification, generating and Palmitic acid glycerol and fatty acid salt, salt water soluble contrast is better.
在碱性条件下，油脂会产生皂化反映，生成甘油以及脂酸盐，甘油以及脂酸盐的水溶性都对比好。
Fumaric acid has a lower softening temperature and saponification value but a higher acid value, which was beneficial to improving the quality of modified rosin size and dispersed rosin size.
在加成量相同的情况下：富马松香与马来松香相比具有较低的软化点和皂化值，却有较高的酸值，有利于改善强化松香胶和分散松香胶的质量。
The chemical method include treating with sulfuric acid, saponification, acylation, esterification, etc.
化学方法包括酸洗法、皂化法、酰化法和酯化法等。
Hartshorn(NH_(4)OH) was used as a new catalyst instead of acetic acid in the saponification reaction of base zinc salt of dioctyl thiophosphate (T203).
选用氨水溶液代替醋酸作为新型催化剂用于硫磷双辛基碱性锌盐（T203）的皂化反应。
Adopt the chemical method, carry on the saponification to the lignin sulfonic acid calcium, and compound with the surface-active agent.
采用化学处理方法，对木钙进行改性，对松香进行皂化，并与表面活性剂进行复合。
Synthesis of coumarin-3-carboxylic acid through sodium ethoxide catalyzed synthesis of coumarin -3-carboxylic acid ethyl ester, followed by saponification, acidolysis cyclization was studied.
实验以水杨醛、丙二酸二乙酯为原料，乙醇钠为催化剂催化合成香豆素- 3 -羧酸乙酯，再经皂化、酸解环合合成香豆素- 3 -羧酸。
Oils used in the saponification value, acid value, iodine value and cold spots.
油脂测定常用皂化值、酸值、碘值和冻点。
Oils used in the saponification value, acid value, iodine value and cold spots.
油脂测定常用皂化值、酸值、碘值和冻点。
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