Origin

Magnesium stearate is a compound formed either through the chemical reaction between sodium stearate and magnesium salts or by treating magnesium oxide with stearic acid. This process results in a versatile ingredient widely utilized in various industries.

Also Known As

Magnesium stearate is also familiar to many by other names. Here are a few alternative names for this compound:

• Magnesium octadecanoate

Usages

This ingredient is prominently used in the pharmaceutical and cosmetics sectors. Its primary functions include acting as a release agent, which prevents ingredients from sticking to manufacturing equipment during the compression of tablets and capsules. Additionally, magnesium stearate serves as a lubricant in cosmetics, contributing to the texture and consistency of products.

Overview

Magnesium stearate is characterized by its white, powdery appearance and water-insoluble nature. It is a salt composed of magnesium cation (Mg2+) and stearate, the negatively charged ion of stearic acid. Its utility in various applications is largely due to its distinctive properties such as softness, insolubility in many solvents, and minimal toxicity. Key points about magnesium stearate include:

• It is insoluble in water, enhancing its stability and shelf life in products.
• Magnesium stearate is recognized for its low toxicity, making it safe for use in many applications.
• The compound’s lubricating properties are invaluable in the pharmaceutical and cosmetics industries.

Common Dosage

The common dosage for magnesium stearate is generally considered safe below 2500 mg per kg of body weight per day. This guideline helps ensure its use is within a safe and effective range for various applications.

Summary

Magnesium stearate is a vital ingredient in the pharmaceutical and cosmetic industries, valued for its lubricating and release agent properties. It is produced through a reaction involving magnesium salts and stearic acid, resulting in a white, water-insoluble powder. Key highlights about magnesium stearate include:

• Widely used as a lubricant in cosmetics and a release agent in pharmaceuticals.
• Known for its safety and low toxicity.
• Recommended dosage is below 2500 mg per kg of body weight per day.

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