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Detail

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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