Talc Powder ACS

Product Overview

Talc Powder ACS is a finely milled mineral product designed to meet ACS Reagent Grade standards. It is primarily magnesium silicate, with the chemical composition expressed as Mg3Si4O10(OH)2. The material is white to off-white, with an odorless profile and a high degree of purity, making it suitable for demanding industrial and analytical applications where consistent particle size, low moisture, and controlled trace metal content are essential. Its hydrophobic nature and low moisture content reduce clumping and enhance dispersion in coatings, polymers, and analytical matrices. The powder is characterized by a specific gravity around 2.59 at 20°C and a typical assay wt pct near 99.7%, supporting reliable performance in calibrated processes and quality control workflows.

ACS Grade Talc Powder serves as a versatile filler, carrier, and lubricant across plastics, cosmetics, agriculture, and analytical chemistry. Our documentation aligns with authoritative standards and test methods, including ICP-OES and ICP-MS analyses, gravimetric loss on drying, and APHA/Hazen color assessment, ensuring traceable lot-to-lot consistency and trace metal control for sensitive formulations. With a shelf life of 24 months when stored properly, the product supports long-term inventory management in manufacturing, research, and quality assurance environments.

Key Properties

• Chemical Formula: Mg₃Si₄O₁₀(OH)₂
• Appearance: White to off-white powder
• Odor: Odorless
• CAS: 14807-96-6
• Assay wt pct (typical): 99.7
• Color alpha (max): 3 APHA
• Specific Gravity (20°C): 2.59
• Residue after evaporation (max): 0.003%
• Chloride (max): 30 ppm
• Nitrate (NO3−) (max): 50 ppm
• Ammonium (NH4+) (max): 5 ppm
• Sulfate (SO4²−) (max): 100 ppm
• Phosphate (PO4³−) (max): 40 ppm
• Arsenic (As) (max): 0.5 ppm
• Heavy metals (as Pb) (max): 5 ppm
• Iron (Fe) (max): 10 ppm
• Calcium (Ca) (max): 1,500 ppm
• Magnesium (Mg) (max): 15,000 ppm
• Potassium (K) (max): 1,000 ppm
• Sodium (Na) (max): 1,000 ppm

Common Applications

• Filler in Plastics: Used as a filler to enhance mechanical properties, dimensional stability, and texture in polymer compounds and molded parts, with controlled brightness and dispersion behavior.
• Cosmetic Ingredient: Incorporated in cosmetics as an absorbent and slip-enhancing excipient, contributing to product feel and oil absorption while maintaining purity and low metal content.
• Lubricant in Manufacturing: Serves as a solid lubricant and anti-caking additive in various manufacturing processes, reducing wear and improving equipment performance.
• Carrier for Pesticides: Acts as a carrier or carrier-bed in agricultural formulations, delivering active ingredients with uniform distribution and improved suspension characteristics.
• Analytical Reagent: Employed as a high-purity mineral standard or reagent support in analytical chemistry, supporting precise gravimetric and instrumental analyses.

Safety Precautions

Store in a cool, dry place in tightly closed containers. Handle with appropriate PPE, including dust masks or respirators and protective gloves, to minimize inhalation and dermal exposure. Keep away from moisture and incompatible materials such as strong acids to prevent chemical reactions or contamination. Ensure good housekeeping and ventilation in work areas to manage dust generation during handling or transfer, and follow your organization's dust-control procedures.

In case of exposure, rinse eyes with water for several minutes, remove contact lenses if present, and continue rinsing. For skin exposure, wash with soap and water. If inhaled, move to fresh air and seek medical attention if symptoms persist. If ingested, rinse mouth and seek medical advice if symptoms occur. This product is not classified as hazardous under current GHS classifications, but proper handling is essential to prevent inhalation of fine particulate matter and to maintain product purity.

Benefits

✔ High Purity ACS Grade – Meets or exceeds ACS Reagent Grade specifications, supporting reliable analytical and industrial performance.
✔ Low Trace Metal Content – Optimized trace metals profile (e.g., As, Pb, Fe) to minimize discoloration and analytical interference in cosmetics and analytical methods.