Whiteness (%)
|
≥92
|
Particle size(-2μm,%)
|
≥80
|
Residue on 325mesh (%)
|
≤0.003
|
Oil absorption (g/100g)
|
55-65
|
PH
|
6.0-8.0
|
Water content (%)
|
≤0.5
|
Refractivity
|
1.62
|
Dispersion (μm)
|
≤45
|