| 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. This phenomenal compound is the heart of limestone, marble, and similar treasures of nature. Typically appearing as pure white crystals, calcium carbonate is both odorless and virtually insoluble in water. When it meets acid, it gracefully releases carbon dioxide, making it a fascinating compound to work with [1]. As one of Earth's most abundant minerals, this versatile substance can be found in diverse forms such as aragonite, calcite, chalk, limestone, marble, and travertine. It also makes up the sturdy bones and shells of various animals. Beyond its natural beauty, calcium carbonate shines as an essential building material, playing a pivotal role across numerous industrial applications.
Laboratory Uses
1. In the fascinating realm of biological experiments, particularly in the 'extraction of pigments from green leaves' procedure, the introduction of a subtle amount of calcium carbonate during the grinding phase acts as a guardian of the pigments, preventing their degradation amidst the grinding process. This ensures the vibrancy and integrity of the pigments is maintained, highlighting the essential role calcium carbonate plays in laboratory settings.
2. Witness the dynamic reaction of calcium carbonate with hydrochloric acid, typically in its dilute form, where it gracefully transforms into carbon dioxide through the equation: CaCO3 + 2HCl = CaCl2 + CO2↑ + H2O. This wondrous transformation not only produces a calcium chloride solution but also serves as a pivotal standardizing agent for soap solutions, showcasing its versatility and functional significance in chemical reactions.
Industrial Uses
1. Applications in Plastic Production
Calcium carbonate is esteemed for its widespread application in the production of resins like polyvinyl chloride (PVC), polyethylene (PE), and polypropylene (PP). By incorporating this mineral marvel, the properties of plastic products are enhanced, thus broadening their potential uses. In the intricate process of plastic manufacturing, calcium carbonate contributes by mitigating resin shrinkage, refining rheology, and maintaining viscosity control, thereby elevating the quality and functionality of the products.
2. Enhancements in the Food Industry
3. Construction Industry Integration
As a noteworthy component in raw materials, calcium carbonate finds its place in the production and application of interior and exterior wall paints, particularly for plastic factories, rubber factories, paint factories, and waterproof material establishments. Its attributes, such as high purity, exceptional whiteness, non-toxicity, and low hardness, make it an ideal choice. Additionally, marble's role as a significant material extends its utility further in the construction arena.
4. Chemical Manufacturing Applications
Calcium carbonate, processed to varying degrees of fineness, from 350 mesh to 800 mesh, serves diverse purposes. At 350 to 400 mesh, it's ideal for creating gussets, downpipes, and chemicals, boasting a whiteness of over 93 degrees. Progressing to 400 to 600 mesh, it's perfect for toothpaste paste and soap, maintaining a whiteness over 94 degrees. At 800 mesh, its applications extend to rubber, cables, and PVC, consistently delivering a whiteness above 94 degrees, thus catering to various industrial needs.
5. Utilization in Fine Ceramic Materials
Embrace the advanced capabilities of calcium carbonate in crafting fine ceramics, where it aids in the preparation of materials that are stable at high temperatures, exhibit low thermal conductivity, and possess microporous structures. This mineral's purity ensures the production of dielectric ceramics, adding a high-value dimension to the world of ceramic materials.
6. Nutritional Supplement Applications
Calcium carbonate reigns as the predominant ingredient in numerous calcium tablets available in the market. Its intake is optimized when consumed with meals, as calcium carbonate, rich in carbonic acid, readily generates carbon dioxide in acidic environments. However, it is advisable for individuals with low gastric acid secretion or those on gastric acid inhibitors to exercise caution, as it might not be suitable for them. Its role in promoting bone health and nutritional well-being is undeniable.
| 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. stands as a beacon of excellence in the diverse landscape of global trade. Specializing in a wide array of chemical products including BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether, polyester, and polymer polyols, we boast a comprehensive and expansive industrial network. Our professional sales team is celebrated for its exceptional expertise, precise administrative management, and remarkable teamwork, earning widespread acclaim and trust within the industry. Our products reach numerous esteemed domestic and international partners.
At Najin, we resolutely uphold the principles of 'quality first, customer first, and reputation first'. Our unwavering commitment is to deliver unparalleled products to our valued customers. We are dedicated to continuously developing a cutting-edge chemical supply chain, offering top-tier service, the finest products, and relentless dedication.
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