Medicinal materials

Molecular formula: Ca［CH₃(CH₂)₁₆COO］₂

CAS NO.:1592-23-0

Chemical structural formula:

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, ℃	≥54	≥53
acid value	/	195-210
stearic acid content, %	/	≥40
stearic acid&palmitic acid content, %	/	≥90

Packaging

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

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