Calcium Carbonate (CAS No. 471-34-1) is a fine white powder with a molecular weight of 100.09 g/mol, characterized by its exceptional purity and stable chemical properties. It has a density of 2.71 g/cm³ at 25°C and demonstrates insolubility in water with only 0.0013 g dissolving per 100 mL at 25°C, yet it readily dissolves in acids with effervescence, making it highly reactive for industrial applications. This compound decomposes at approximately 825°C and has a hardness rating of 3 on the Mohs scale. Suspended in water, calcium carbonate exhibits a neutral to slightly alkaline pH, enabling it to serve as an effective pH buffer. These intrinsic properties make it widely used across various industries including construction as a building material additive, in pharmaceuticals as a calcium supplement, in agriculture for soil conditioning, and in the manufacturing of paints and plastics ensuring optimal product performance. The stability, low solubility in water, and thermal properties are critical for formulation scientists and industrial manufacturers seeking a reliable source of calcium carbonate for specialized processes.
Key Features
| Features | Description |
|---|---|
| CAS Number | 471-34-1 |
| Molecular Weight | 100.09 g/mol |
| Solubility in Water | 0.0013 g/100 mL at 25°C (insoluble) |
| Reactivity in Acids | Soluble with effervescence |
| Melting Point / Decomposition | Decomposes at approximately 825°C |
| Density | 2.71 g/cm³ at 25°C |
| Hardness | 3 on Mohs scale |
| pH when Suspended in Water | Neutral to slightly alkaline |
| Attributes | Description |
|---|---|
| Appearance | Fine white powder |
| Chemical Formula | CaCO3 |
| Purity | High purity grade suitable for industrial use |
| Storage Conditions | Store in a cool, dry place away from moisture and acids |
| Usage Areas | Pharmaceuticals, Construction, Agriculture, Paints, Plastics |
| Packaging | Bulk bags, drum packaging or customized as per buyer requirements |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
This calcium carbonate is high purity, stable, and has neutral to slightly alkaline properties, making it suitable as a calcium supplement and excipient in pharmaceutical formulations, subject to compliance with specific pharma-grade certification.
Yes, the powder’s fine particle size, consistent density, and chemical stability provide excellent filler properties for paints and plastics, enhancing durability and finish.
It decomposes at approximately 825°C, indicating stability under typical industrial processing temperatures below this threshold.
Due to its low solubility in water but reactivity with acids, it effectively acts as a soil conditioner by neutralizing acidity while slowly releasing calcium.
Country Of Origin: India
CAS No.: 471-34-1
Molecular Weight: 100.09 g/mol
Solubility: Insoluble in water (0.0013 g/100 mL at 25°C Soluble in acids with effervescence
Melting Point: Decomposes at approximately 825°C
Density: 2.71 g/cm³ (at 25°C)
Hardness: 3 on the Mohs scale
pH: Neutral to slightly alkaline when suspended in water
