Audited Supplier
Molecular formula: Ca[CH3(CH2)16COO]2
CAS NO.:1592-23-0
Main uses In tablet preparation, calcium stearate is used as lubricating agent, and release agent.
Testing item | Testing standard | |
Specification | USP35-NF30 | BP2013 |
appearance | white or almost white fine powder; insoluble in water and ethyl alcohol | white or almost white fine powder; insoluble in water and ethyl alcohol |
identification | meet the specification | meet the specification |
alkali and alkali metal salt | / | meet the specification |
content(in calcium oxide), % | 9.0-10.5 | / |
content(in calcium), % | / | 6.4-7.4 |
chloride, % | / | ≤0.1 |
sulfate, % | / | ≤0.3 |
loss on drying, % | ≤4.0 | ≤6.0 |
heavy metal, ppm | ≤10 | / |
nickel, ppm | / | ≤5 |
lead, ppm | / | ≤10 |
cadmium, ppm | / | ≤3 |
freezing point, ºC | ≥54 | ≥53 |
acid value | / | 195-210 |
stearic acid content, % | / | ≥40 |
stearic acid&palmitic acid content, % | / | ≥90 |