Magnesium carbonate

Magnesium carbonate

Magnesite; Magnesium Monocarbonate; Light Magnesium Carbonate; Carbonic Acid Magnesium Salt

CAS 546-93-0

Chemical Formula MgCO₃

Molecular Weight 84.31 g/mol

Magnesium carbonate is a naturally occurring mineral used in pharmaceuticals, food products, cosmetics, and sports. It serves as an antacid, a drying agent, a food additive, and a grip enhancer in athletic activities like gymnastics and weightlifting.

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Industrial Uses

1. Pharmaceuticals

  • Antacid Formulations: Magnesium carbonate is widely used in over-the-counter antacids to neutralize excess stomach acid, providing relief from heartburn, indigestion, and ulcers.
  • Magnesium Supplement: Serves as a magnesium source in dietary supplements to support nerve function, muscle health, and bone strength.
  • Tablet & Capsule Excipient: Acts as a bulking agent or filler in tablets and capsules, improving stability and ensuring consistent dosage.

2. Food & Healthcare Ingredients

  • Anti-Caking Agent (INS 504): Used in salt, spices, powdered drink mixes, and flour to prevent clumping, ensuring smooth flow during packaging and use.
  • Acidity Regulator: Serves as a pH buffer in certain baking and beverage applications.
  • Magnesium Fortification: Added to health foods to boost magnesium content, especially in low-magnesium diets.

3. Personal Care 

  • Absorbent and Mattifying Agent: Used in face powders, deodorants, and body powders to absorb moisture and oil, providing a dry, matte finish.
  • Skin Conditioning Agent: Improves skin texture and feel in creams and lotions, especially in products for oily or acne-prone skin.
  • Whitening Agent in Toothpaste: Acts as a gentle abrasive and whitening agent in certain natural and whitening toothpastes.

4. Polymers & Resins

  • Acid Scavenger in PVC and Rubber Compounds: Neutralizes residual acids during polymer processing, thereby enhancing the thermal stability of PVC and rubber products.
  • Filler and Reinforcement: Used as a lightweight filler to improve bulk and performance in rubber, foam, and elastomer formulations.

5. Paints, Coatings & Adhesives

  • Rheology Modifier and Matting Agent: Improves thickness, consistency, and opacity in paints and coatings, particularly matte finishes.
  • Extender Pigment: Used as an inert pigment extender to reduce cost and density while maintaining coverage.

6. Agrochemicals

  • Soil Conditioner: Applied to acidic soils as a mild alkalizing agent, enhancing nutrient uptake and microbial activity.
  • Magnesium Fertilizer Component: Provides essential magnesium for chlorophyll formation and enzyme activation, especially in fruit and vegetable crops.

Specifications

Assay ≥ 98% (for analytical or pharmaceutical grade)
Appearance White, odorless powder or crystalline solid
Odor Odorless
Boiling Point Decomposes before boiling
Melting Point Decomposes at ~350 °C
Density 2.96 g/cm³ (anhydrous)
Solubility Practically insoluble in water; soluble in acids
Viscosity Not applicable (solid)
Flash Point Not applicable (non-flammable solid)

FAQs

1. What is the current price of Magnesium carbonate in India?
The price of Magnesium carbonate can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.630 100 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Magnesium carbonate in India?
You can purchase Magnesium carbonate from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Magnesium carbonate?
Our minimum order quantity (MOQ) for Magnesium carbonate is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Magnesium carbonate supplied by Multichem?                   
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.