TWEEN ® 20

描述

non-ionic

质量水平

300

形式

viscous liquid

分子量

~1228

组成

lauric acid, ≥40% (balance primarily myristic, palmitic, and stearic acids)

浓度

≥40.0% (GC)

technique(s)

DNA extraction: suitable
RNA extraction: suitable
cell culture | mammalian: suitable
protein purification: suitable

杂质

≤3.0% water

折射率

n20/D 1.468 (lit.)

CMC

0.06 mM (20-25°C)

酸值

≤2.2 mg/g

羟基值

96?108 mg/g

转变温度

cloud point 76 °C

密度

1.095 g/mL at 25 °C (lit.)

HLB

16.7

适用性

complies for IR spectroscopy