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Pharmaceutical Chemistry
Talc
Formula:
Mg₃Si₄O₁₀(OH)₂
GOST/CAS:
CAS 14807-96-6 / EINECS 238-877-9
Pharmaceutical grade talc (hydrated magnesium silicate) is a highly purified, chemically inert, micronized powder of natural origin that strictly complies with international pharmacopoeia standards (including EP, USP, BP). The product undergoes a multi-stage purification process to completely eliminate iron oxides, heavy metals, and microbiological impurities. Due to its unique organoleptic properties—high adsorptive capacity, hydrophobicity, and a characteristic smooth, slippery feel—it serves as an indispensable base component in the manufacturing of pharmaceuticals, dietary supplements (capsules/tablets), and premium cosmetic products.
Applications
Pharmaceutical Industry: Used as an effective glidant and lubricant in tablet and capsule manufacturing. It prevents the powder mass from sticking to die walls and punches, improves powder flowability, and ensures precise dosage uniformity.
Cosmetics and Personal Care: Serves as the primary base for baby powders, loose and compact face powders, eye shadows, and dry deodorants. It acts as a mattifying agent, absorbs excess sebum and moisture, and enhances product texture and skin feel.
Dietary Supplements & Sports Nutrition: Incorporated into encapsulated and tablet forms of vitamin-mineral complexes to optimize the technological properties of raw materials during high-speed filling and packaging.
Medical Devices: Used for dusting latex/rubber gloves, surgical drapes, catheters, and other medical rubber goods to prevent them from sticking together during prolonged storage.
Key Advantages
Ultra-High Purity: Certified completely asbestos-free with minimal content of iron oxides and heavy metals, guaranteeing absolute safety, biocompatibility, and hypoallergenic properties.
Excellent Lubricating Properties: Significantly reduces friction between powder particles and machinery parts, optimizing and accelerating the tableting and compression processes on production lines.
Superior Absorption: Effectively absorbs moisture, skin oils, and ambient odors without clogging skin pores (in cosmetic formulations) while maintaining the stability of dry dosage forms.
Microbiological Purity: Undergoes mandatory sterilization (via gamma irradiation or heat treatment), making it perfectly safe for formulations that come into direct contact with damaged skin or mucous membranes.
Storage & Transportation
- Store in dry, clean, well-ventilated warehouse premises in tightly sealed original manufacturer packaging. Protect from moisture ingress and direct sunlight.
- Recommended storage temperature: from +5°C to +30°C with relative air humidity not exceeding 75%. The product is highly hygroscopic under elevated humidity conditions.
- Avoid co-storage with strong-smelling substances, as talc possesses a high capacity to absorb foreign odors from the environment.
- Transportation is permitted by all modes of covered transport in compliance with standard freight regulations. The material is not classified as hazardous cargo (non-hazardous under ADR regulation). Shelf life is 3–5 years from the date of manufacture (depending on the manufacturer's specific technical data sheet).
Technical Specifications
Appearance
Light, homogenous, fine white or almost white powder, greasy to the touch, odorless and tasteless.
Assay
min. 98.0%
Loss on Drying (at 105°C)
max. 0.5%
Loss on Ignition (at 1000°C)
max. 7.0%
Solubility
Practically insoluble in water, organic solvents, dilute acids, and alkalis.
pH (10% aqueous suspension)
7.0 – 9.5
Heavy Metals Content (Pb, As)
max. 10 ppm / 3 ppm
Microbiological Purity
Complies with Pharmacopoeia requirements (absence of E. coli, Salmonella, and other pathogens).
Supply info
- Multi-layer paper bags with a polyethylene inner liner: 20 kg / 25 kg.
- Flexible intermediate bulk containers / Big-Bags (MKR): 500 kg / 1000 kg for large-scale industrial manufacturing.
- Customized packaging sizes can be arranged upon preliminary agreement with the customer.