Light calcium carbonate(Industrial grade)
Light calcium carbonate (Industrial grade)
Light calcium carbonate also known as precipitated calcium carbonate—referred to as PCC. The sedimentation volume （2.4-2.8ml/g）made by chemical processing is higher than that by mechanical processing, so it is called light calcium carbinate. PCC is widely used in rubber industry, plastic industry, paint industry, water-based coating industry and paper-making industry.
Product name: Industrial Precipitated Calcium Carbonate
Synonym: Limestone, PCC, Precipitated calcium carbonate
CAS：471-34-1
Grade: Industrial grade
Place of origin: Jiangxi
Purity: > 98%
Appearance: white powder
Mesh: 800-1500 mesh
Whiteness degree: 94
Sedimentation volume: 2.4-2.8ml/g
Executive standards: HGT 2226-2010
| 检验项目
Inspection Items |
指标
SPEC |
检验结果
Result |
| 主含量（以CaCO3计）≥%
Calcium Carbonate(CaCO3) content ≥% |
98 |
98.72 |
| PH值（10%悬浮液）
PH( 10% suspension) |
9.0-10.0 |
9.83 |
| 105℃下挥发物含量
Volatile content below 105℃≤ |
0.4 |
0.23 |
| 盐酸不溶物含量≤%
HCL insoluble content ≤% |
0.1 |
0.02 |
| 沉降体积 ≥m1/g
Sedimentation volume ≥ml/g |
2.8 |
2.8 |
| 铁(Fe)含量 ≤%
Iron content(Fe) ≤% |
0.05 |
0.01 |
| 锰(Mn)含量≤%
Manganese content (Mn)≤% |
0.005 |
0.0017 |
| 筛余物125μm ≤%
Residue 125μm ≤% |
/ |
None |
| 筛余物45μm ≤%
Residue 45μm ≤% |
0.2 |
0.020 |
| 白度≥度
Whiteness degree ≥ % |
94 | 94 |
Applications
1、Rubber industry
In rubber industry, as one of the earliest used fillers, PCC is widely used to improve the products’ volume. Compared with expensive natural rubber, this usage can reduce costs in the meantime. The filling of PCC can increase the products’tensile strength, wear-resistance and tear strength.
2、Plastic industry
In plastic industry, PCC has a great effect on the stability of plastics dimensions. It plays an important role in improving the products hardness, also the surface gloss and flatness. In some ordinary plastic products, the addition of PCC can improve it’s heat resistance and whitening effect(Instead of expensive white pigments)
3、Paint industry
In paint industry, PCC is an indispensable skeleton part with large amount addition, which is above 30% in thick paint, 4-7% in phenolic enamel paint and above 39% in phenolic wrinkle pattern paint.
4、Water-based coating industry
In water-based coating industry, PCC is widely used to make coatings sedimentation free, dispersibility easily and gloss brightened. The amount in coating industry is about 20-60%.
5、Other industry
In the paper-making industry, PCC is used for paper filling and paper coating to ensure its strength and whiteness. In the meantime, it can reduce costs.
In cable industry, PCC plays a role in isulation function.
PCC is also used as friction agent in toothpaste.
Storage:
Closed operation; Pay attention to ventilation; Avoid dust generation; Avoid contact with acids. There shall be shelter during transportation to prevent rain; Damp. The package shall be complete and the loading shall be stable. Ensure that the container does not leak during transportation; No collapse; Do not fall; No damage; Mixed loading and transportation with acids are strictly prohibited.
Date
February 19, 2016
