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| Brightness | ≥ 95% | Whiteness | ≥ 97% |
| Moisture | ≤ 0.2% | Density (raw stone) | 2.7g/cm3 |
| Loss rate when burned | ≤ 43.08% |
With the source of white limestone in Quy Hop district, Nghe An province are the best quality quarries in Vietnam ; The white limestone here is characterized by very high whiteness and purity , extremely low content of silicon and metals.
|
CHEMICAL SPECS |
PHYSICAL CHARACTERISTICS |
||
|
CaCO3 |
≥ 98% |
Brightness |
≥ 95% |
|
MgCO3 |
≤ 0.21% |
Whiteness |
≥ 97% |
|
Fe2O3 |
≤ 0.02% |
Moisture |
≤ 0.2% |
|
Al2O3 |
≤0.03% |
Density (raw stone) |
2.7g/cm3 |
|
SiO2 |
≤0.12% |
Oil permeability (finest particle size) |
≥ 24g/100g CaCO3 |
|
Na2O |
≤0.05% |
Loss rate when burned |
≤ 43.08% |
An Phat Investment Trading Joint Stock Company (APTIC) is a leading supplier of white limestone products, including:
- White limestone CaCO 3 (Lump, Chips)
B Tower, World Trade Center, No.6 Hongkong Road, Qingdao
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