Product Description
Calcium carbonate is an inorganic compound with the chemical formula CaCO3. It is one of the most common substances on the earth. It exists in rocks such as limestone and marble and is also the main component of the hard tissues of many organisms, such as shells and coral skeletons.
In terms of physical properties, calcium carbonate is a white solid, tasteless and odorless. It has a variety of crystalline forms, among which calcite and aragonite are more common. Calcite belongs to the trigonal crystal system and is usually in the shape of a rhombohedron; aragonite belongs to the orthorhombic crystal system and its crystals are mostly columnar or acicular. Its density varies slightly due to factors such as crystalline form and is generally around 2.7 - 2.9 g/cm³. It has a moderate hardness with a Mohs hardness of about 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 is an important paper filler in the paper - making industry. It can improve the whiteness, opacity and smoothness of the paper. During the paper - making process, calcium carbonate is filled between the paper fibers and can effectively prevent the penetration of light, thus improving the opacity of the paper.
Calcium carbonate is widely used as a filler in building materials. When an appropriate amount of industrial - grade calcium carbonate is added during the production of cement, the performance of the cement can be improved. It can increase the strength and hardness of the cement and also reduce the production cost. For example, in the mortar for ordinary buildings, the addition of calcium carbonate can make the mortar more solid and helps to reduce the amount of cement used.
Industrial - grade calcium carbonate is a commonly used filling material in the plastics industry. Adding calcium carbonate to plastic products can increase the volume of the plastic, thus reducing the production cost. For example, in the production of polyvinyl chloride (PVC) plastic pipes, the filling of calcium carbonate can increase the density of the pipes, improve the rigidity and hardness of the pipes, enabling them to better withstand pressure.
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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