Calcium Carbonate
CAS 471-34-1 · CaCO3 · HS 2836.50
Calcium carbonate (CaCO3, CAS 471-34-1) is the worlds highest-volume mineral filler, supplied as ground calcium carbonate (GCC) produced by milling high-purity limestone, marble or chalk, or as precipitated calcium carbonate (PCC) synthesised by carbonation of lime for tighter particle-size control and higher brightness. It is used to reduce compound cost, raise stiffness and impact strength, improve dimensional stability and, in paper, to raise brightness and opacity. Buyers compare CaCO3 assay, whiteness, D50 and D97 particle size, oil absorption and whether the grade is surface treated with stearic acid for polyolefin compatibility.
حالات الاستخدام
- PVC pipes, profiles and cables
- Polyolefin masterbatch and compounds
- Paper filling and coating
- Architectural and industrial paints
- Sealants and adhesives
- Construction dry-mix mortars
المواصفات النموذجية
| CAS Number | 471-34-1 |
|---|---|
| Molecular Formula | CaCO3 |
| Type | GCC / PCC |
| CaCO3 Assay | ≥ 98.0% |
| Whiteness | ≥ 94% |
| Particle Size D50 | 1.5 - 15 µm (grade dependent) |
| HS Code | 2836.50 |
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موردو Calcium Carbonate
6 qualifiedZibo, Shandong, China · Est. 1998
موثوقية البيانات 95% · Online verified · Claim Pending
Jiangmen, Guangdong, China · Est. 2004
موثوقية البيانات 94% · Not verified · Claimed
Quzhou, Zhejiang, China · Est. 2001
موثوقية البيانات 93% · On-site verified · Featured
Guilin, Guangxi, China · Est. 2002
موثوقية البيانات 93% · Online verified · Verified
Hefei, Anhui, China · Est. 2011
موثوقية البيانات 88% · Not verified
Kunming, Yunnan, China · Est. 2008
موثوقية البيانات 83% · Not verified
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