Talc Powder - White Colored

Product Overview

Talc Powder (Magnesium Silicate) is a naturally occurring, high-purity mineral mineral comprised of magnesium, silicon, and oxygen with the formula Mg₃Si₄O₁₀(OH)₂. Alliance Chemical supplies this material as a finely divided white powder, optimized for industrial applications requiring chemical inertness and thermal stability. Its platy structure provides exceptional lubricity, hydrophobicity, and reinforcing characteristics.

This industrial-grade talc serves as a critical functional filler and extender. It improves stiffness and dimensional stability in polymers, acts as a processing aid in rubber manufacturing, and enhances rheology in coatings. The material is characterized by a high assay (typically ~93%) and a controlled particle size distribution to ensure consistent dispersion in complex formulations. It strictly adheres to ASTM D4236 standards for industrial material quality.

Key Properties

• Chemical Name: Magnesium Silicate (Talc)
• CAS Number: 14807-96-6
• Assay (Purity): 85-98% (Typical 93%)
• Appearance: Fine white powder
• Specific Gravity: 2.58–2.80 (Typical 2.68 at 20°C)
• Moisture: Max 0.5%
• Solubility: Insoluble in water
• Molecular Weight: 379.27 g/mol (approx based on formula)

Common Applications

• Plastics Manufacturing: Used as a reinforcing filler in PVC, polypropylene, and engineering thermoplastics to increase stiffness, heat resistance, and dimensional stability.
• Rubber Processing: Functions as a dusting agent and processing aid to reduce viscosity, prevent sticking (anti-tack), and improve mold release during extrusion and vulcanization.
• Coatings and Paints: Acts as an extender pigment that improves corrosion resistance, film reinforcement, and settling stability in industrial primers and topcoats.
• Paper and Pulp: Utilized for pitch control and as a coating pigment to enhance opacity, brightness, and ink receptivity in paper production.
• Ceramics: Serves as a flux and structure-enhancing agent in the production of glazes and ceramic bodies, improving thermal shock resistance.

Safety Precautions

Standard industrial hygiene practices must be observed when handling Talc Powder. While chemically inert, the generation of airborne dust should be minimized. Use defined local exhaust ventilation in processing areas to maintain air quality. Personnel should wear appropriate Personal Protective Equipment (PPE), including NIOSH-approved dust respirators, safety goggles, and gloves to prevent inhalation and eye contact.

Store in a cool, dry environment in tightly sealed containers to prevent moisture absorption. This product is not regulated as a hazardous material for transport (Non-Hazmat). Refer to the Safety Data Sheet (SDS) for detailed exposure controls and handling protocols.

Benefits

Process Efficiency: Excellent lubricating properties reduce wear on processing equipment and improve flow rates.
High Purity Profile: Low moisture and controlled impurity levels ensure compatibility with sensitive chemical formulations.
Versatile Functionality: Provides simultaneous reinforcement, hydrophobic properties, and rheology modification.

Related Products

• Ammonium Bifluoride Flakes
• Battery Water
• Cadmium Oxide Powder ACS Reagent