Hydromagnesite CAS NO 12072-90-1

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CAS No.:12072-90-1

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Hydromagnesite is a hydrated basic magnesium carbonate mineral valued for its flame-retardant and smoke-suppressant properties. This inorganic compound is essential for enhancing the fire safety and thermal stability of various polymer and building material formulations. It is a key raw material for manufacturers in the plastics, rubber, cable, and construction industries seeking non-halogenated, environmentally friendly fire retardant solutions.

Application

As a highly effective, halogen-free flame retardant and smoke suppressant in polyolefins (PP, PE), PVC, rubber, and engineering plastics.
As a functional filler in wire and cable coatings to improve fire resistance and meet stringent safety standards.
In the formulation of intumescent coatings and sealants for construction materials, providing passive fire protection.
As a thermal stabilizer and acid acceptor in various polymer composites.
In the production of magnesium oxide and other magnesium-based chemicals as a precursor.
As a component in specialty ceramics and refractories.

Basic Information


Product Name	Hydromagnesite
CAS No.	12072-90-1
Molecular Formula	Mg5(CO3)4(OH)2·4H2O
Molecular Weight	467.64 g/mol
Synonyms	Basic Magnesium Carbonate Hydrate; Magnesium Carbonate Hydroxide Hydrate; Hydrated Basic Magnesium Carbonate; Magnesium Hydroxide Carbonate; Flame Retardant FR-MH; Smoke Suppressant SS-MH; Magnesia Alba (historical); CAS 12072-90-1
EINECS	235-192-7

Quality Control

Our Hydromagnesite is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent performance as a flame retardant filler, with key parameters including chemical composition, particle size distribution, and thermal decomposition behavior. Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep containers tightly sealed to prevent absorption of atmospheric moisture, which can affect flow properties and performance.

Specification

Item	Specification
Appearance	White fine powder
Identification (XRD/IR)	Conforms to Hydromagnesite
Assay (as MgO)	40.0 - 45.0 %
Loss on Ignition (LOI)	50.0 - 55.0 %
Moisture Content	≤ 2.0 %
Particle Size (D50)	2.0 - 10.0 µm
Specific Surface Area (BET)	10 - 30 m²/g
Heavy Metals (as Pb)	≤ 20 ppm