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CaCO3 stone powder, also known as stone powder, is an additive used in many industries. To better understand the characteristics of superfine CaCO3 stone powder, please follow the article below by THACH HIEN!
What is CaCO 3 limestone powder ?
CaCO 3 stone powder is a type of stone powder ground from acid-coated and uncoated limestone originating from Nghe An. This is one of the provinces with the largest white limestone reserves in Vietnam. The higher the calcium carbonate content in the stone powder, the higher the quality of the product.
The limestone used for grinding is a sedimentary rock. The main chemical composition is the minerals calcite and aragonite (different crystalline forms of calcium carbonate CaCO 3 ). Limestone is rarely in pure form but is often mixed with impurities such as: siliceous shale, silica, igneous rock, clay, mud, sand, or bitumen, etc. This has greatly affected the color of the mineral. Currently, this type of rock has many colors from white to gray, light blue, yellow, even dark pink or black.
Actual images of limestone blocks at Nghe An quarry
Limestone powder specifications
| CaCO 3 CONTENT | ≥98% |
| MgO CONTENT | ≤0.16% |
| Fe 2 O 3 CONTENT | ≤0.01% |
| Al 2 O 3 content | ≤0.04% |
| SiO 2 CONTENT | ≤0.01% |
| Na 2 O CONTENT | ≤0.16% |
| BRIGHTNESS | ≥98% |
| GRAIN SIZE | 5-35 µm (D97 particle size standard) |
| PACKAGING | 25kg bag, 50kg bag, 1 ton JUMBO bag |
Applications of limestone powder in production
Glass production
Limestone powder is a raw material for glass production (accounting for 20-25%) to help maintain stability, adjust viscosity and increase product durability. Limestone powder helps reduce production costs, thereby optimizing profits while still ensuring the quality of glass.
Applications in Glass Production
Ceramic production
For the ceramic industry, Calcium Oxide is an important raw material that helps reduce shrinkage, improve mechanical and chemical durability of the product. During the production process, people will mix CaCO3 in limestone powder with a suitable amount of ceramic to create the necessary expansion for the ceramic pieces and glaze layer, serving the firing process. This is an important process that provides Calcium Oxide for gum and ceramic products.
Applications in Ceramic and Porcelain production
Plastic and rubber industry
Limestone powder is used in the production of PVC plastic, especially plastic pipes and ceiling panels, to help control viscosity, thermal expansion coefficient, and shrinkage of the product. Limestone powder helps save production costs without affecting product quality.
Detergent production
In the production of detergent powder CaCO 3 helps to improve the cleaning ability of the product.
Environmental treatment
Limestone powder helps to remove sulfur and acid in gas pipes, treat drinking water sources, absorb toxic gases accumulated at the bottom of ponds such as: NH 3 , H 2 S, CO 2 … and stabilize water color, limit the appearance of scum in water, minimize the presence of bacteria or pathogens in the pond, ensure pH stability, neutralize acid to help limit environmental pollution but do not affect the environment and humans.
Livestock and agriculture industry
CaCO 3 is an important additive in the livestock feed industry, helping to supplement the necessary nutrients during egg formation and bone development in poultry. In addition, CaCO 3 is also used as a fertilizer for plant growth by providing nutrients and stabilizing the pH in the soil. In particular, CaCO 3 is an additive in the production of pesticides.
With more than 15 years of experience in the industry of providing CaCO 3 stone powder products , THACH HIEN ONE MEMBER CO., LTD is committed to bringing customers products that meet standards with the best quality. Customers who need more detailed advice on parameters as well as prices of black stone grains according to each size, please contact: Hotline 0986 306 052
THACH HIEN – A PRESTIGIOUS, QUALITY, REASONABLE PRICE SUPPLIER OF CAULIFLOWER STONE
