Description:
A fine, white, odorless, and smooth powder. It is a highly purified form of talc, processed to meet the standards of the British Pharmacopoeia (BP) for pharmaceutical and cosmetic use.
Chemical Composition:
Chemical Formula: MgSiO(OH)
Hydrated Magnesium Silicate.
Identification:
Positive identification for magnesium and silicate ions, consistent with the reference standard.
Purity:
Loss on Drying: Not more than 1.0%.
Acid Insoluble Substances: Not more than 1.0%.
Asbestos-Free: The product must be free from any trace of asbestos and harmful impurities.
Microbial Limits:
Total Aerobic Microbial Count: Not more than 100 CFU/g.
Absence of Pathogens: Must be free from harmful microorganisms such as E. coli, Salmonella, and Staphylococcus aureus.
Solubility:
In Water: Practically insoluble.
In Dilute Mineral Acids: Slightly soluble.
pH:
The pH of a 1% suspension in water is typically neutral to slightly alkaline (pH 79).
Appearance:
Color: White or nearly white.
Odor: Characteristic of talc, with no undesirable odor.
Smooth texture, free from grit or foreign particles.
Heavy Metals:
Meets the BP limits for heavy metals (e.g., lead, arsenic, mercury) to ensure safety.
Applications:
Pharmaceutical: Used as an excipient in tablets, capsules, and topical formulations.
Cosmetic: Used in body powders, baby powders, deodorants, and other personal care products.
Packaging:
Available in various pack sizes, securely sealed to ensure product integrity and prevent contamination.