十二烷基硫酸钠

描述

anionic

质量水平

200

产品线

BioXtra

检测方案

≥99.0% (GC)

分子量

micellar avg mol wt 18,000

聚集数

62

杂质

Insoluble matter, passes filter test

缺失

≤0.5% loss on drying, HV, 20-25 °C

CMC

7-10 mM (20-25°C)

mp

204-207 °C (lit.)

转变温度

cloud point >100 °C

溶解性

H2O: 0.1 M, clear, colorless

痕量阴离子

chloride (Cl-): ≤0.05%
phosphate (PO43-): ≤0.0001%

痕量阳离子

Al: ≤0.0005%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.02%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

吸光度

≤0.05 at 280 in H2O at 0.1 M
≤0.08 at 260 in H2O at 0.1 M

HLB

40