Light Kaolin Bp - Application: Pharmaceutical / Food / Cosmetic

Appearance:

White to off-white powder with a fine texture.
Free from foreign matter and visible impurities.
Identification:

Chemical name: Kaolinite (Hydrated Aluminum Silicate).
Identified by infrared absorption or X-ray diffraction.
Purity:

Contains at least 90% kaolinite.
Free from harmful impurities like heavy metals, pathogens, and other contaminants.
Physical Properties:

Particle Size: Fine, typically with a mean particle size less than 10 microns.
Moisture Content: Typically below 10-14% (by weight).
pH: Between 5.0 to 7.0 (in a 5% aqueous suspension).
Ash Content: Typically less than 10% (as per British Pharmacopoeia guidelines).
Heavy Metals:

Lead (Pb): Less than 10 ppm.
Arsenic (As): Less than 2 ppm.
Mercury (Hg) and Cadmium (Cd): Below specified limits (usually less than 1 ppm).
Microbial Limits:

Must meet the British Pharmacopoeia standards for microbial limits, including:
Total Aerobic Microbial Count: Below specified limits.
Yeast and Mould Count: Below specified limits.
Pathogens: Must be free from Salmonella, Escherichia coli, and other harmful microorganisms.
Solubility:

Insoluble in water and alcohol.
Loss on Drying:

Typically, loss on drying (moisture content) should be below 10-14% (by weight).
Storage:

Store in a cool, dry place and keep away from moisture.
Applications:
Light Kaolin BP is commonly used in pharmaceutical formulations such as antidiarrheal medications, suspensions, tablets, and topical preparations.
It is also utilized in cosmetics (e.g., face masks, powders) for its absorbent and gentle properties.
The Light Kaolin BP is designed to meet high standards of purity and quality for human consumption and topical use.