Calamine Powder, USP/NF Grade

Calamine Powder, USP/NF Grade

Calamine is a fine, pale-pink mineral powder composed primarily of zinc oxide (ZnO) combined with a small proportion of ferric oxide (Fe₂O₃), typically around 0.5%. The ferric oxide content gives the material its characteristic soft pink coloration, distinguishing it from pure white zinc oxide. The powder is dry, smooth, odorless, and features a uniform particle size suitable for blending and dispersion in manufacturing processes.

This grade meets USP/NF specifications and contains not less than 98% zinc oxide after ignition (CAS 8011-96-9; formula ZnO + Fe₂O₃). It is insoluble in water and soluble in acids, remaining chemically stable under normal storage conditions. The material is non-flammable, non-reactive, stable even under fire conditions, synthetic in origin, and supplied as a free-flowing solid.

For optimal storage, keep in a tightly closed container in a cool, dry location between 15–25 °C (59–77 °F), protected from direct sunlight and excessive heat or humidity. Standard personal protective equipment including safety glasses, gloves, and a dust respirator is recommended during handling. The product is non-regulated for ground transport (D.O.T.).

Product Specifications

Applications and Benefits:

• Suitable for laboratory applications.
• Used as a raw material in manufacturing processes.
• Uniform particle size supports blending and dispersion.
• Free-flowing powder for convenient processing.
• USP/NF grade quality for controlled industrial use.
• Chemically stable under normal storage conditions.
• Non-flammable and non-reactive material.

Caution:

Warning. Causes mild skin irritation (H316) and eye irritation (H320). Very toxic to aquatic life (H400). Avoid release to the environment and prevent material from entering drains, soil, or waterways. Use appropriate personal protective equipment including safety glasses, gloves, and a dust respirator when handling. Store in a tightly closed container in a cool, dry location. For laboratory and manufacturing use only. Not for food, drug, or household use. Keep out of reach of children.