Magnesium Carbonate, also known as Light Magnesium Carbonate, is an inorganic salt appearing as a white, friable, and odorless bulky powder. Our Magnesium Carbonate is favored in the rubber and plastic industries as an effective filler and flame retardant.
Advantage
High Whiteness & Purity
With MgOMgO content maintained at 40%-45% and brightness exceeding 95%, our product ensures a pure white finish and consistent quality in high-end coatings and plastics.
Ultra-Light Bulk Density
Our lightweight grade features a controlled bulk density (0.10-0.15 g/ml), providing excellent filling efficiency and reducing overall material costs for rubber and EVA products.
Excellent Dispersibility
The ultra-fine particle size ensures smooth integration into polymers and inks, enhancing the transparency and mechanical strength of the final composite materials.
Pharma & Food Grade Safety
Strictly compliant with BP/USP standards, our product features ultra-low heavy metal content (Pb, As), making it safe for use in antacids, food additives, and premium sports chalk.
Product Parameters
| Analysis Items | Standard Specification (Light Grade) | Typical Result |
|---|---|---|
| Magnesium Oxide (MgO) | 40.0% - 43.5% | 41.2% |
| Purity (MgCO3) | ≥ 98.0% | 98.6% |
| Bulk Density (g/ml) | ≤ 0.15 g/ml | 0.12 g/ml |
| Ignition Loss | 52.0% - 56.0% | 54.5% |
| Water Soluble Matter | ≤ 1.0% | 0.6% |
| Iron (Fe) Content | ≤ 0.02% | 0.01% |
| Sulfate (SO4 2-) | ≤ 0.5% | 0.3% |
| Moisture (H2O) | ≤ 2.0% | 1.2% |
Applications
- Rubber & Plastics : Functions as a high-quality reinforcing filler and flame retardant. It enhances the tear strength and abrasion resistance of rubber products and acts as a smoke suppressant in plastics.
- Sports Industry : Known as "Gym Chalk," it is used by athletes, gymnasts, and rock climbers to absorb hand sweat and improve grip.
- Pharmaceuticals & Food : Used as an antacid in medicine and as an anti-caking agent, color-retention agent, and carrier in the food industry (E504).
- Cosmetics & Personal Care : Included in face powders and talcum powders for its oil-absorption properties and ability to provide a smooth texture.
- Glass & Ceramics : Used in the manufacture of high-refraction glass and as a flux in ceramic glazes.
- Detergents : Acts as a whitening agent and drying agent in various cleaning formulations.
Packaging & Logistics
Packaging
- 25kg bags (PE/PP woven bags)
- 5kg / 10kg / 20kg bags available on request
- 1000kg / 1250kg jumbo bags (industrial bulk)
- OEM packaging supported (logo, design, private label)
Shipping
- Sea freight (FCL / LCL bulk orders)
- Air freight (small urgent orders)
- Land transport (regional delivery)
Delivery Time
- Sea freight: 20–35 days depending on destination
- Air freight: 5–10 days for urgent orders
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Why Choose Us
Large Production Capacity
Annual capacity reaches 100,000–150,000 tons, supporting a stable bulk supply for key chemical products.
Exported to 78 Countries Worldwide
We have supplied 489+ B2B buyers across 78 countries, with proven global shipping and trade experience.
ISO Certified Quality Management System
Production follows ISO9001, ISO22000, and ISO45001 standards, with SGS and TUV testing for quality consistency.
Professional Export Team Support
Our 20+ member foreign trade team ensures fast response, technical support, and full pre-sales and after-sales service.
FAQ
Q: How can we guarantee quality?
A: We connect with your requirements and suppliers' advantages to balance your benefits from different perspectives.
Q: Are you a trading company or a manufacturer?
A: We are a trading company.
Q: Why should you buy from us not from other suppliers?
A: We have a professional team, high reputation, and access to hundreds of thousands of suppliers in China.
Q: What services can we provide?
A:We serve importing & exporting business in China and connect with your requirements and suppliers' advantages.
Q: What is your minimum order quantity (MOQ)?
A: MOQ depends on the packaging type and destination. We support flexible bulk orders for distributors and project buyers.
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