Wollastonite has industrial importance worldwide. It is used in many industries due to its fluxing properties, freedom from volatile constituents, whiteness, and acicular particle shape. It can be used in metallurgical, paint, paper, ceramic and vinyl tile manufacture etc.
Xinyu South Wollastonite Co., Ltd is the largest manufacturer & supplier of wollastonite in Asia since 1994. We have 3 mines which are the biggest deposits in China locate in Xinyu and Shanggao, Jiangxi China. Our annual output is more than 300 thousand tons. We have advanced mining and processing equipments, technological force and accurate testing instrument. So we can meet different customer requirement from chemical property to physical property.
Physical Property:
Granularity (mesh): 80- 1250
（L/D）Aspect Ratio(L/D): 8-25
Sedimentation value (ml/200m): 40-75
Oil absorption value (g/100g): 20-26
Whiteness (%):76- 90
Refractive Index (%):1.63
Density (g/cm3): 2.95
Coefficient Of Expansion (mm / mm ℃): 6.5×10-6
Melting Point (℃): 1450
Mohs Hardness (Mohs): 4.5-5
Chemical Property of Wollastonite
1. Model 1: XYNFW-A
SiO2 （min）: 49-51
CaO (min): 44-46
Al2O3 (max): 0.8
Fe2O3 (max): 0.25
TiO2 (max): 0.003
MgO(max): 1.2
S (max): 0.02
P(max): 0.007
Wt.Loss(1000℃) : 0.5-1
PH: 9
2. Model 2: XYNFW-B
SiO2 （min）: 48-52
CaO (min): 43-45
Al2O3 (max): 0.8
Fe2O3 (max): 0.3
TiO2 (max): 0.003
MgO(max): 1.2
S (max): 0.02
P(max): 0.007
Wt.Loss(1000℃) : 2-5
PH: 9
3. Model 2: XYNFW-C
SiO2 （min）: 48-53
CaO (min): 38-43
Al2O3 (max): 0.8
Fe2O3 (max): 0.35
TiO2 (max): 0.003
MgO(max): 1.2
S (max): 0.02
P(max): 0.007
Wt.Loss(1000℃) : 2-5
PH: 9
