| Customization: | Available |
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| CAS No.: | 471-34-1 |
| Formula: | CaCO3 |
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Calcium carbonate is an inorganic compound with the chemical formula CaCO3. It is the main component of limestone, marble, etc. Calcium carbonate is usually white crystals, odorless, basically insoluble in water, and easily reacts with acid to release carbon dioxide [1]. It is one of the most common substances on Earth and exists in rocks such as aragonite, calcite, chalk, limestone, marble, and travertine. It is also the main component of the bones or shells of some animals. Calcium carbonate is also an important building material and has a wide range of industrial uses
Laboratory Uses
1. In the biological "extraction of pigments from green leaves" experiment, adding a small amount of calcium carbonate during grinding can prevent the pigment from being destroyed during grinding.
2. Calcium carbonate reacts with hydrochloric acid (usually dilute hydrochloric acid) to produce carbon dioxide: CaCO3+2HCl=CaCl2+CO2↑+H2O (the product calcium chloride solution can be used to standardize soap solution)
Industrial Uses
1. Used in plastic production
Calcium carbonate is widely used in filling resins such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP). Adding calcium carbonate has a certain effect on improving certain properties of plastic products to expand their application range. In plastic processing, they can reduce resin shrinkage, improve rheology, and control viscosity.
2. Used in the food industry, it can be used as an additive in the food industry.
3. Used in the construction industry
It can be used as raw materials and interior and exterior wall paint for plastic factories, rubber factories, paint factories, and waterproof material factories. It has the characteristics of high purity, high whiteness, non-toxic, odorless, low fine oil quality, and low hardness. Marble is also important.
4. Used in the chemical manufacturing industry
350 mesh to 400 mesh can be used to make gussets, downpipes, and chemicals. The whiteness is above 93 degrees. 400 mesh to 600 mesh can be used for toothpaste paste and soap. The whiteness is above 94 degrees. 800 mesh can be used for rubber, cables, PVC, and the whiteness is above 94 degrees.
5. Used in fine ceramic materials
Calcium carbonate can be used to prepare high-temperature stable, dielectric, low thermal conductivity, microporous and highly pure ceramic materials.
6. Used as a nutritional supplement
The main ingredient of most calcium tablets on the market is calcium carbonate. Calcium carbonate needs to be taken with meals [18]. Calcium carbonate contains carbonic acid, which easily produces carbon dioxide in an acidic environment. It is not suitable for people with poor gastric acid secretion or who are taking gastric acid inhibitors
| Molecular weight | 100.0869 |
| density | 2.93 g/mL at 25 °C (lit.) |
| Melting point | 825 °C |
| Boiling Point | 800 °C |
| Water Solubility | Insoluble |
| Solubility | 5 m HCl: 0.1M at 20 °C,Clear, colorless. |
| Refractive Index | 1.6583 |
| PH | 9.91(1 mM solution);9.91(10 mM solution);9.91(100 mM solution); |
| Storage conditions | Store at +5°C to +30°C. |
| Sensitivity | Easily absorbing moisture |
Najin Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.
We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.
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