Description

Hydratedmagnesiumsilicate CAS NO 1343-90-4 is a versatile inorganic compound, primarily known as a form of talc. This product is valued for its unique combination of properties, including lubricity, chemical inertness, and adsorption capacity. It serves as a critical functional additive and processing aid across numerous industrial sectors, from pharmaceuticals and cosmetics to plastics and paints, where consistent quality and reliable supply are paramount.

Application

• Pharmaceuticals: Used as a glidant and anti-caking agent in tablet and capsule formulations to improve powder flow and processing.
• Cosmetics & Personal Care: Acts as a filler, absorbent, and texture enhancer in products like face powders, eyeshadows, and lotions.
• Polymers & Plastics: Functions as a reinforcing filler and nucleating agent to improve stiffness, dimensional stability, and heat resistance.
• Paints & Coatings: Serves as an extender pigment and flatting agent to control gloss, improve suspension, and enhance durability.
• Food Industry (FCC Grade): Employed as an anti-caking agent and release agent in food products and processing (where compliant grade is supplied).
• Ceramics: Used in the formulation of ceramic bodies and glazes to influence firing characteristics and final product properties.
• Agriculture: Acts as a carrier for pesticides and fertilizers, and as a dusting agent.
• Paper Manufacturing: Utilized as a filler to improve opacity, brightness, and printability of paper products.

Basic Information

Product Name	Hydratedmagnesiumsilicate
CAS No.	1343-90-4
Molecular Formula	Mg3Si4O10(OH)2 (typical for talc)
Molecular Weight	379.27 g/mol (for ideal formula)
Synonyms	Talc; Talcum; Soapstone; French Chalk; Steatite; Magnesium Silicate Hydrate; Agalite; Mineral White; CI 77718
EINECS	215-664-8

Quality Control

Our Hydratedmagnesiumsilicate is manufactured under a strict quality management system. Production adheres to relevant specifications, including USP, NF, FCC, and industrial standards where applicable. Each batch undergoes rigorous analytical testing to ensure identity, purity, and performance characteristics. A comprehensive Certificate of Analysis (COA) documenting key parameters is provided with every shipment.

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. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent caking due to moisture absorption.

Specification

Item	Specification
Appearance	White to off-white, fine powder
Identification (IR)	Conforms
Assay (as MgO)	≥ 28.0 %
Loss on Drying	≤ 6.0 %
Loss on Ignition	4.0 - 8.0 %
Acid Soluble Substances	≤ 2.0 %
Water Soluble Substances	≤ 0.2 %
pH (10% suspension)	7.0 - 9.5
Heavy Metals (as Pb)	≤ 40 ppm
Arsenic (As)	≤ 3 ppm
Microbial Limits	Contact for details
Particle Size Distribution	Contact for details

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