说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 皂化值
1)  saponification value
皂化值
1.
Study on the encapsulation technique of high purity γ-linolenic acid, part 1 ——saponification reaction and saponification value;
高纯度γ-亚麻酸包合工艺研究Ⅰ——皂化值及皂化反应
2.
Three methods for measure of saponification value of cane wax, including the National standard method, the conductometric titrimetry and the pH value titrimetry, were investigated here.
分别采用国标法、电导滴定法、pH值滴定法测定甘蔗蜡的皂化值,探讨电导滴定法和pH值滴定法测定蔗蜡皂化值的操作条件,并对测定结果进行分析。
3.
The content of millet's crude fat and millet oil's related index were studied,such as saponification value,unsaponible matter content,colour,composition of fatty acid and the sterols.
对小米粗脂肪含量以及油脂皂化值、不皂化物含量、颜色等特性进行了测定,粗脂肪含量为1。
2)  saponification number
皂化值
1.
The pyridine/water solvent was replaced by n-porpyl alcohol/ethylene glycol solvent in determination of saponification number during esterified process.
将测定酯化产物皂化值的吡啶/水溶剂改为正丙醇/乙二醇溶剂,克服了吡啶/水溶剂的刺激、腐蚀性,同时也改善了溶剂自身方面对测试结果带来的不利影响,提高了分析的稳定性及准确性。
3)  saponification numbers
皂化值
1.
The items of saponification numbers and acidity of the synthetic beeswax made from catalyze-oxidation of paraffin were tested and discussed by four standard-testing methods.
采用4种标准测试方法,对由石蜡催化氧化制取人造蜂蜡的皂化值和酸值进行了测定和讨论。
4)  high saponification value
高皂化值
1.
The development process and commercial application of GB-600 silicon steel rolling oil with high saponification value and lubricity are expounded.
介绍了高皂化值GP-600型高润滑性硅钢轧制油的研制过程及工业应用情况。
5)  partial saponification number
部分皂化值
6)  oil saponification value
油的皂化值
补充资料:皂化值
分子式:
CAS号:

性质:油脂用碱水解时生成脂肪酸盐和甘油,这一反应称为皂化。1g油脂完全皂化时所需氢氧化钾的mg值,叫皂化值。由皂化值可以估算组成油脂各种脂肪酸的平均分子量。皂化值愈大,表示油脂的平均分子量越小。用酸碱滴定法的返滴定方式可以测定皂化值。56.104g氢氧化钾所皂化的油脂量(g)即为此油脂的平均分子量(又称皂化当量)。皂化值的测定方法为:用4~5g的:油脂样品与50ml的氢氧化钾-乙醇溶液[4%(质量/体积)]回流加热1h,冷却后用0.1mol/LHCl滴定,以酚酞为指示剂。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条