Product Description
Calcium carbonate, an inorganic compound, has the chemical formula CaCO3. It ranks among the most prevalent substances on Earth. It can be found in rocks like limestone and marble, and also serves as the primary component of the hard tissues in numerous organisms, such as shells and coral skeletons.
Regarding its physical properties, calcium carbonate presents as a white solid that is both tasteless and odorless. It exhibits multiple crystalline forms, with calcite and aragonite being relatively common. Calcite pertains to the trigonal crystal system and typically takes on a rhombohedral shape. Aragonite, on the other hand, belongs to the orthorhombic crystal system, and its crystals are often columnar or acicular. Its density shows minor variations due to factors including the crystalline form, generally ranging around 2.7 - 2.9 g/cm³. Additionally, it has a medium - level hardness, with a Mohs hardness of approximately 3.
Product Parameters
| Product |
Calcium carbonate(heavy) |
25kg/bag |
| Items of test |
standard |
Test results |
| Sensory index |
White or gray-white powder |
coincidence |
| Identification test |
Pass the test |
pass |
| Assay % |
98-100 |
100 |
| Insolubles % |
≤0.20 |
0.06 |
| Dissociate alkali |
Pass the test |
pass |
| Magnesium and alkali metal % |
≤1.0 |
0.79 |
| Loss on drying % |
≤2.0 |
0.23 |
| Barium (mg/kg) |
≤300 |
<300 |
| Lead (mg/kg) |
≤3.0 |
<3.0 |
| Iron |
≤0.1% |
<0.1% |
Heavy metals (mg/kg)
|
≤20 |
<20 |
Application
Industrial - grade calcium carbonate plays a crucial role as a paper filler within the paper - making industry. Its addition to the paper - making process brings about several improvements. Firstly, it enhances the paper's whiteness, making the paper appear brighter and more visually appealing. Secondly, it significantly increases the opacity of the paper. This is achieved because during paper production, when calcium carbonate is introduced and fills the spaces between paper fibers, it effectively blocks the passage of light. By doing so, less light can penetrate through the paper, thereby enhancing its opacity. Moreover, it contributes to improving the smoothness of the paper surface, which in turn can enhance the overall quality of the paper for various printing and writing applications.
Calcium carbonate finds extensive application as a filler in the building materials sector. During cement manufacturing, incorporating an optimal quantity of industrial - grade calcium carbonate can lead to significant improvements in cement performance. This addition not only enhances the strength and hardness of the cement but also curtails production costs. Take the mortar used in ordinary buildings as an example. When calcium carbonate is added to the mortar, it acts as a binding agent, making the mortar more compact and robust. This, in turn, allows for a reduction in the amount of cement required. As a result, construction costs can be decreased without sacrificing the quality of the building materials.
Industrial - grade calcium carbonate serves as a frequently utilized filling material within the plastics industry. When incorporated into plastic products, calcium carbonate effectively augments the volume of the plastic. This expansion in volume results in a reduction of production costs, as less of the more expensive base plastic material is needed. In the case of manufacturing polyvinyl chloride (PVC) plastic pipes, the addition of calcium carbonate brings about multiple benefits. It raises the density of the pipes, enhancing their overall mass and substance. Simultaneously, it improves the pipes' rigidity and hardness. These enhanced mechanical properties allow the PVC pipes to endure pressure more effectively, making them more suitable for applications where they need to withstand significant forces, such as in plumbing systems for water supply or sewage disposal.
Packaging & Shipping
Packing: Package in 25 Kg bag, also accpet customer OEM packing.
Storage: Keep in a cool, dry, dark location in a tightly sealed container or cylinder.
Certifications and Reviews
Company Profile
Shandong Jiuchong Chemical Company Limited was founded in 2016, which is located in Weifang City, Shandong Province, China. We have 228 square meters of office space. Now Jiuchong chemical is a large modern international chemical enterprise with more than 28 series. Since our establishment, the company has gradually established and improved a sound supply chain system, quality monitoring system and service system, ensuring products quality and service.
At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc.
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers.
Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
Jiuchong chemical takes "integrity, innovation and development" as the concept, puts integrity in the priority position in serving customers, and guarantees high quality products and satisfactory cooperation for customers experience. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done. In the future, Shandong Jiuchong Chemical Company Limited hopes to build a brilliant tomorrow with you!
Customer Visiting
FAQ
Q: How long is your delivery time?
A: It usually takes 7-10 days if the goods are in stock, or 10-15 days if the goods are not, depending on the quantity ordered.
Q: Can you support OEM ?
A: Yes, we can make products as your request.
Q: Do you provide samples?
A: Yes, we could offer the sample for free by requests but are not responsible for the freight cost.
Q: What payment terms do you accept?
A: We accept T/T, L/C at sight;
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