Calcium carbonate
Calcium carbonate can be classified into light calcium carbonate, heavy calcium carbonate and active calcium carbonate based on different production methods.
The preparation method of light calcium carbonate (referred to as light calcium) is to calcine raw materials such as limestone to generate lime (mainly composed of calcium oxide) and carbon dioxide, then add water to digest the lime to form lime milk (mainly composed of calcium hydroxide), and then introduce carbon dioxide to carbonize the lime milk to generate calcium carbonate precipitate. Finally, it is obtained through dehydration, drying and grinding. It can be obtained by first conducting a double decomposition reaction between sodium carbonate and calcium chloride to form calcium carbonate precipitate, and then through dehydration, drying and grinding. It is mainly used as a filler in industries such as rubber, plastic, papermaking, coatings and inks, and can also be used in daily chemical products such as tooth powder, toothpaste and cosmetics. It can also be used in organic synthesis, metallurgy, glass and asbestos production.
The preparation method of heavy calcium carbonate (referred to as heavy calcium) is to directly crush natural calcite, limestone, chalk, shells, etc. by mechanical means. It is an excellent filler and performance modifier, and is widely used in plastics, rubber, papermaking, coatings, feed, medicine, daily chemical industry, glass, ceramics and other fields.
The preparation method of active calcium carbonate (referred to as active calcium) is to modify the surface of light calcium or heavy calcium with surface modifiers to obtain it. After the modification treatment, the surface of the calcium carbonate powder forms a special coating structure, which can significantly improve the dispersion and affinity in polymer matrices such as polyolefins, and can also produce interface interaction with the polymer matrix. Thereby enhancing the impact resistance strength of the products, it is an excellent incremental filling additive.
Other supplier products
|
|
Magnesium Lactate Powder |
Key Considerations for Use Safety: Generally recognized as safe (GRAS) by regulatory bodies when used within recommended limits, but excessive inta... |
|
|
Magnesium Citrate |
Magnesium citrate, a compound formed by the combination of magnesium ions and citric acid, is widely used in the food industry due to its high bioa... |
|
|
Magnesium Citrate |
Magnesium citrate is widely recognized for its role in supporting digestive regularity:Osmotic laxative: When taken in higher doses, magnesium citr... |
|
|
Compound nutritional fortifier (VB12 dilution) |
Product Name:Compound nutritional fortifier (VB12 dilution) Description Raw material :VB12, citric acid, sodium citrate, maltodextrin Assay:0.1%, 0... |
|
|
Magnesium Gluconat e |
Solubility and Hydrophilicity of Magnesium GluconateWater Solubility: Highly soluble in water, with a solubility of approximately 100 g/L at 20°... |
供应产品
Same products
