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Magnesium stearate

Magnesium stearate is white powder, non-toxic, tasteless and non-flammable. Insoluble in water and ether, soluble in hot ethanol, and easily decomposed by dilute acid.

Key Words:

Magnesium stearate

Category:

STEARATE

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Magnesium stearate

(一)Molecular formula：Mg(C₁₇H₃₅COO)₂

(II) Properties: Magnesium stearate is white powder, non-toxic, tasteless and non-flammable. Insoluble in water and ether, soluble in hot ethanol, and easily decomposed by dilute acid.

(III) Uses: Magnesium stearate is mainly used as lubricating and releasing agent for tablets. It can also be used as an ingredient for cosmetics, as well as a stabilizer for PVC and a drier for paints in combination with calcium soap and zinc soap.

(IV) Quality standards:

Model	Magnesium Content（%）	Free Acid（%）	Moisture（%）	Melting Point（℃）	Fineness/Screen Residue （%）
M-01	4.0-5.0	≤2	≤5	125-140	≤1(75μm)
M-02	4.2-4.8	≤1	≤4	130-145	≤1(75μm)
M-03	4.0-5.0	≤2	≤5	125-140	≤1(45μm)