Description

Talc CAS NO 14807-96-6 is a naturally occurring hydrated magnesium silicate mineral, prized for its unique combination of softness, chemical inertness, and lamellar structure. This versatile industrial mineral serves as a critical functional additive, enhancing product performance across numerous manufacturing sectors. Key industries that rely on its properties include plastics and polymers, paints and coatings, pharmaceuticals, cosmetics, and paper manufacturing, where it acts as a reinforcing filler, anti-blocking agent, and lubricant.

Application

• Plastics & Polymers: Acts as a reinforcing filler and nucleating agent in polypropylene (PP) and other thermoplastics, improving stiffness, heat resistance (HDT), and dimensional stability. Also functions as an anti-blocking agent in polyolefin films.
• Paints & Coatings: Used as an extender pigment and flatting agent to improve suspension, sheen control, and scrub resistance in both water-based and solvent-based formulations.
• Pharmaceuticals & Cosmetics: Serves as a glidant and anti-caking agent in tablet manufacturing. In personal care, it is a key ingredient in powders, blushes, and eyeshadows for its absorbency and smooth texture.
• Paper Industry: Employed as a filler and coating pigment to improve paper smoothness, opacity, printability, and ink absorption.
• Ceramics & Refractories: Functions as a flux to lower firing temperatures and improve the thermal shock resistance and mechanical strength of ceramic bodies and kiln furniture.
• Food & Feed: Approved as an anti-caking agent (E553b) in food products like rice and powdered seasonings, and as a carrier in animal feed supplements.
• Rubber & Adhesives: Used as a filler to modify rheology, improve processing, and enhance the mechanical properties of rubber compounds and sealants.
• Agriculture: Utilized as a carrier and diluent in pesticide and fertilizer formulations, and as a dusting agent.

Basic Information

Product Name	Talc
CAS No.	14807-96-6
Molecular Formula	Mg3Si4O10(OH)2 or H2Mg3O12Si4
Molecular Weight	379.27 g/mol
Synonyms	Soapstone; Talcum; French Chalk; Steatite; Magnesium Silicate Hydrate; Agalite; Mineral White; CI 77718; Cosmetic Talc; Industrial Talc; Fibrous Talc; Platy Talc
EINECS	238-877-9

Quality Control

Our Talc is sourced and processed under strict quality management systems to ensure batch-to-batch consistency and compliance with global regulatory standards. We offer various grades, including Industrial, Cosmetic (meeting USP/CTFA specifications), Food Grade (FCC), and Pharmaceutical (USP/EP). Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing parameters such as chemical composition, particle size distribution, brightness, and heavy metal content. Our quality assurance protocols are designed to meet the stringent requirements of ISO, GMP, REACH, and FDA regulations where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Talc is hygroscopic (moisture-sensitive); prolonged exposure to high humidity should be avoided to prevent caking.

Specification

Item	Specification
Appearance	White to off-white fine powder
Identification (IR)	Complies
Assay (as MgO)	≥ 30.0 %
Loss on Drying (LOD)	≤ 2.0 %
Loss on Ignition (LOI)	4.0 - 7.0 %
Acid Soluble Matter	≤ 2.0 %
Water Soluble Substances	≤ 0.2 %
Particle Size (D50)	5 - 25 µm (Grade dependent)
Brightness (ISO)	85 - 95 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Lead (Pb)	≤ 10 ppm
Microbial Count	As per USP/EP for relevant grade

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.