Description

Magnesium Carbonate Trihydrate is a high-purity inorganic salt valued for its role as a versatile functional additive and processing aid. Its unique combination of properties, including its fine particle size and chemical stability, makes it essential for applications demanding precise material characteristics. This compound is primarily sought after by manufacturers in the pharmaceutical, food, and industrial sectors for its utility as an antacid, desiccant, and filler. We supply CAS NO 14457-83-1 to meet rigorous global quality standards, ensuring reliable performance and supply chain consistency for our B2B partners.

Application

• Pharmaceutical Excipient: Used as a binder, diluent, and antacid in tablet and capsule formulations.
• Food Additive (E504): Functions as an anti-caking agent, acidity regulator, and drying aid in powdered food products like table salt and icing sugar.
• Industrial Desiccant: Employed in moisture-sensitive packaging and processes due to its hygroscopic nature.
• Rubber & Plastics: Acts as a filler and reinforcing agent to improve mechanical properties and reduce material costs.
• Personal Care: Used as an absorbent and opacifying agent in cosmetics, such as body powders and face masks.
• Sports & Gymnastics: Applied as a drying agent (gymnastics chalk) to improve grip by absorbing sweat.
• Ceramics & Glass: Serves as a source of magnesium oxide and a flux in manufacturing processes.
• Fireproofing Agent: Incorporated into materials for its endothermic decomposition, which releases water and carbon dioxide to suppress flames.

Basic Information

Product Name	Magnesium Carbonate Trihydrate
CAS No.	14457-83-1
Molecular Formula	MgCO3·3H2O
Molecular Weight	138.36 g/mol
Synonyms	Carbonic acid, magnesium salt, trihydrate; Magnesium carbonate hydrate; Light Magnesium Carbonate; Magnesii subcarbonas; Food Additive E504; Gymnastics Chalk; Magnesia alba; Basic Magnesium Carbonate
EINECS	Contact for details

Quality Control

Our Magnesium Carbonate Trihydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets specifications for identity, purity, and physical properties. We can supply material compliant with relevant standards such as USP-NF, FCC, and Ph. Eur. upon request. A Certificate of Analysis (COA) documenting key parameters is provided with every shipment to guarantee traceability and quality assurance for our customers.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking. Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White, light powder
Identification (IR)	Conforms
Assay (as MgO)	40.0% - 43.5%
Loss on Drying	Contact for details
Acid Insoluble Substances	≤ 0.05%
Chloride (Cl)	≤ 0.1%
Sulfate (SO4)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Calcium (Ca)	≤ 0.5%
Iron (Fe)	≤ 0.02%

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