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hydroxyl value

  • 羟值：在分析化学中，羟值被定义为毫克氢氧化钾（KOH）中和醋酸乙酰化一克含有自由羟基的化学物质所需的数量。

双语例句

  1. The viscosity and hydroxyl value of PHPB synthesized under these conditions attained better level.
    在此条件下合成出来的PHPB的羟值和粘度均达到较好的水平。
  2. A method for determining hydroxyl value of epoxy-containing polyester, namely acetyl chloride method is introduced.
    介绍了一种含环氧基聚酯的羟值测定方法，即乙酰氯法。
  3. Acid value and hydroxyl value are two pieces of characteristic value of the purpose products and the experiment adopts the titrimetric law of acid and alkali to confirm them.
    酸值和羟值是目的产品的两个特征值，实验采用酸碱滴定法来确定两个特值。

网络短语

  • Determination of hydroxyl value
    羟基值的测定；羟值的测定；羟值测定方法
  • high hydroxyl value
    高羟值
  • hydroxyl value detail
    羟值
  • active hydroxyl value
    活性羟基值
  • hydroxyl value analysis
    羟值

英英释义

  • In chemistry, the hydroxyl value is a measure of the content of free hydroxyl groups in a compound, typically a fat, oil, or natural or synthetic ester. This value is a useful measure of the degree of esterification in ester synthesis.