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What Are the Dangers of Magnesium Stearate?

Magnesium stearate is a white powder that is derived from plants. Low amounts of magnesium stearate do not pose significant dangers, but excessive and dry magnesium stearate powder is particularly hazardous.

  1. Explosion Hazard

    • Powder or the granular form of magnesium stearate is a dust explosion hazard, especially around a spark or open flame. Fine dust is distributed in the air in high concentrations.

    Combustion

    • Magnesium stearate is highly flammable in the presence of oxygen. The chemical compound decomposes upon burning, emitting toxic and irritating fumes.

    Chronic Exposure

    • Extreme and chronic inhalation of magnesium stearate can lead to pneumonitis, pulmonary edema, and cyanosis, which produces a bluish discoloration of the skin and mucous membranes.

    Inhalation risk

    • Health problems from excessive inhalation of magnesium stearate include suppression of the immune system, improper cell function, difficulty in breathing and coughing.

    Physical Dangers

    • Magnesium stearate exposure can irritate eyes.

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