Magnesium Hydroxide Powders

Our line of magnesium hydroxide powders are used in wet granulation and direct compression tableting and suspension applications. A wide range of magnesium powders is available. They vary in density and particle size distribution. On dry basis, Magnesium Hydroxide, dried at 105°C for 2 hours, contains not less than 95.0% and not more than 100.5% of Mg(OH)2.

Product Name


Typical Density (g/mL)


Dense powder, USP, Ph. Eur., low lead

Tapped 0.68-0.84


Resuspendible powder, USP, Ph. Eur.

Tapped 0.60-0.75


Dense powder, USP, Ph. Eur.

Tapped 0.60-0.90

5100 is free flowing and blends very well with other ingredients. It is low lead (<125 ppb) and can be used in antacids that must meet USA’s California Proposition 65.

5200 is a medium-density product specifically designed for rehydration from the powdered form to product a smooth, viscous, nonseparating suspension. This is required for milk of magnesia (MoM) laxative systems. It is cost-effective for shipment anywhere in the world since it eliminates the cost of shipping water.

5300 is a dense powder that conforms to both USP and EP standards.

Do you have a question about a product?

Please contact us to talk with one of our technical experts. Are you ready to try this product?