Kaolin Pharmaceutical Grade is a type of clay primarily composed of kaolinite, a hydrous aluminum silicate. Here are some key details:

Properties:
1. Composition: Primarily kaolinite (Al₂Si₂O₅(OH)₄), along with other minerals like quartz and feldspar.
2. Appearance: Fine, white powder.
3. Solubility: Insoluble in water and organic solvents.

Applications:
1. Pharmaceuticals: Used as an excipient in tablets and capsules for its binding and bulking properties.
2. Medicinal Uses: Acts as an absorbent in antidiarrheal medications and can be used to treat skin irritations and ulcers.
3. Cosmetics: Commonly included in formulations for its thickening and absorbent properties.

Safety: Generally recognized as safe (GRAS) for use in food and pharmaceuticals, but regulatory compliance (like FDA standards) is necessary for specific applications.

Storage: Should be stored in a cool, dry place to prevent clumping and maintain its efficacy.
This information makes kaolin pharmaceutical grade a versatile ingredient in various industries, particularly in pharmaceuticals and cosmetics.