High purity Magnesium stearate powder CAS 557-04-0 C36H70MgO4 powder best selling factory price

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Introduction of magnesium stearate

Magnesium stearate is a compound of various solid organic acids of magnesium, mainly composed of magnesium stearate and magnesium palmitate in variable proportions. Magnesium stearate is a widely used drug excipient, it is non-toxic when taken orally, but large amounts can cause diarrhea or mucous membrane irritation.

Parameters of Magnesium stearate:

Physical properties of magnesium stearate

White loose powder, odorless and tasteless, fine without gritty feeling, with a light characteristic aroma. Surfactant magnesium stearate, also known as magnesium octadecanoic, is a fatty acid salt type anionic surfactant with the appearance of a white fine powder, slightly with a special odor, with a slippery feeling. It is soluble in hot aliphatic hydrocarbon, hot aromatic hydrocarbon, and hot grease but insoluble in alcohol and water. It decomposes into stearic acid and corresponding magnesium salt when it meets strong acid.

Chemical properties of magnesium stearate

Magnesium stearate is also known as magnesium octadecanoic. Chemical formula Mg(C18H35O2)2. molecular weight 591.27. white fine soft bright powder or lump. Industrial product contains a small amount of oleic acid and 7% of magnesium oxide, which is odorless and tasteless. Slightly soluble in water, soluble in hot ethanol solution. Decompose into stearic acid and corresponding magnesium salt when meeting strong acid. Made by the reaction of molten stearic acid, magnesium oxide, or sodium stearate solution, and dilute magnesium sulfate solution. It is used as the smoothing agent of paint, powder molding agent of tablets, stabilizer of plastic products, etc.

The application of magnesium stearate

Magnesium stearate has good adhesion to the skin and good lubricity; used in cosmetics for powder products and can improve adhesion and lubricity. Magnesium stearate can be used as a polyvinyl chloride heat stabilizer; stabilization efficiency and calcium stearate similar can be used with zinc soap or calcium soap for food packaging materials, but not widely used.

Magnesium stearate can also be used as a plastic products mold release agent, cosmetic fragrance powder, emollient ointment raw material, pharmaceutical tablets powder mold agent, and paint translucent leveling agent. Laboratory through the sodium stearate and magnesium sulfate complex decomposition reaction to produce magnesium stearate finished products, but also by edible grade solid organic acid (stearic acid, palmitic acid) mixture and magnesium oxide after refining.

Magnesium stearate is used as a polyvinyl chloride heat stabilizer, cosmetic flour, emollient ointment, and pharmaceutical tablet raw materials (excipient, lubricant); used in school wood powder to make it lubricating, bright and transparent; paint industry as a transparent leveling agent, etc.

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