硬脂酸镁

等级

puriss.

检测方案

≥40% stearic acid basis (GC)
≥90% stearic and palmitic acid basis
4.0-5.0% Mg basis (calc on dry sub.)

质量

meets analytical specification of Ph. Eur., BP

杂质

acidity or alkalinity, complies
microbiological impurity, in accordance
residual solvents, complies

缺失

≤6.0% loss on drying, 105 °C

mp

200 °C (lit.)

酸值

195‑210(fatty acid)

溶解性

alcohol: insoluble
diethyl ether: insoluble
water: insoluble

痕量阴离子

chloride (Cl^-): ≤1000 mg/kg
sulfate (SO₄^2-): ≤5000 mg/kg

痕量阳离子

Cd: ≤3 mg/kg
Ni: ≤5 mg/kg
Pb: ≤10 mg/kg

适用性

in accordance for fatty acid composition
passes test for identity

application(s)

pharmaceutical (small molecule)

SMILES string

CCCCCCCCCCCCCCCCCC(=O)O[Mg]OC(=O)CCCCCCCCCCCCCCCCC

InChI

1S/2C18H36O2.Mg/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2

InChI key

HQKMJHAJHXVSDF-UHFFFAOYSA-L