Magnesium stearate/cas no. 557-04-0/Medicinal materials

Production description

Molecular formula: Mg[CH3(CH2)16COO]2

CAS NO.: 557-04-0

Main uses

It is mainly used as lubricating agent, antisticking agent and flow aid.

Quality standard

Testing item Testing standard
Specification USP35-NF30 BP2013
appearance white fine powder white fine powder
identification meet the specification meet the specification
solubility / meet the specification
magnesium content,  % 4.0-5.0 4.0-5.0
PH value meet the specification meet the specification
chloride, % ≤0.1 ≤0.1
sulfate, % ≤1.0 ≤1.0
loss on drying, % ≤6.0 ≤6.0
lead, ppm ≤10 ≤10
nickel, ppm ≤5 ≤5
cadmium, ppm ≤3 ≤3
stearic acid content, % ≥40.0 ≥40.0
stearic acid&palmitic acid content, % ≥90.0 ≥90.0
bacteria, cfu/g ≤1000 ≤1000
mould, cfu/g ≤100 ≤100
pathogenic bacterium not detectable not detectable

 

Packaging

woven bag lined with high pressure PE film; 20kg/bag or follow customer’s packaging instruction