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Active precipitated calcium carbonate
Our company's active precipitated calcium carbonate is produced according with HG/T2567-94 standard. The specifications are as the following:
Item |
Index
|
|
National industrial standard |
Enterprise standard |
|
Main content(based on CaCO3),% ≥ |
96.0 |
98.0 |
PH |
8.0-10.5 |
8.0-9.0 |
Volatile matter below 105°C% ≤ |
0.50 |
0.20 |
Insoluble substance in hydrochloric acid % ≤ |
0.20 |
0.15 |
Residue on sieve 125µm test sieve ≤ 45µm test sieve ≤ |
0.010 0.30 |
0.010 0.15 |
Iron(Fe) % ≤ |
0.10 |
0.10 |
Manganese(Mn) % ≤ |
0.006 |
0.005 |
Whiteness.degree ≥ |
90.0 |
94.0 |
Oil absorption number % ≤ |
70 |
55.0 |
Activation grade % ≥ |
95 |
98 |