Magnesium carbonate hydroxide
Description
Magnesium carbonate hydroxide (CAS 12125-28-9) is an inorganic mineral compound used across industrial and regulated markets as a pH buffer, filler, and processing aid. Its buffering capacity and low bulk density make it a practical choice for formulators.
This material is essential for managing acid neutralization and flow control in solid and semi-solid systems. In rubber and plastics compounding, it functions as a reinforcing filler and acid scavenger, improving thermal stability during processing.
Pharmaceutical manufacturers use it as an excipient in tablet formulations, where it controls pH and improves powder flowability for direct compression. It ensures consistency and quality in high-speed manufacturing environments.
In food production, it serves as an anti-caking agent and acidity regulator in powdered products, operating under food-grade compliance requirements. It helps maintain the texture and shelf stability of various consumer goods.
Water treatment operations apply it to adjust alkalinity and neutralize acidic effluents in both municipal and industrial systems. This versatility makes it a staple chemical for environmental and utility management sectors.
The product is available as a white, low-density powder in varying particle size distributions to suit different processing requirements. Established grades include food-grade (FCC) and pharmaceutical-grade (USP/BP).
Technical-grade options are also available for industrial applications where high purity is not the primary concern. Bulk and packaged supply options are standard across the market to meet diverse logistical needs.
Physical Properties
| Melting Point | 600°C(decomposition) |
| Density | 2.16 g/cm3 (20 °C) |
| Form | solid |
| Water Solubility | 1000g/L at 20℃ |
| pH | 10.5 (50g/l, H2O, 20°C) suspension |
Trade & Regulatory
| HS Code | 2836 99 11 |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 3 |
Documentation
Other Names
Hexamagnesium;tetracarbonate;dihydroxide;pentahydrate|Basic Magnesium Carbonate
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