Description
Wollastonite Quick Details
Chemical Name: Wollastonite; Calcium metasilicate
CAS No.:13983-17-0
Molecular Fomula: CaO3Si
Molecular weight:116.16
Chemical Structure:
Appearance:White fine plate crystal
Assay: Cao 40%min ,Sio2 50%min
Wollastonite Typical Properties
Item
Standard
Results
Method
Cao
?R40%
42.35%
Titration
Sio2
?R50%
50.38%
Titration
Mgo
?Q3.0%
2.47%
Titration
Fe2O3
?Q0.1%
0.1%
Titration
Al2O3
?Q1%
0.66%
Titration
LO1
?Q4%
3.62
1000/h
Physical property
Whiteness
90??2%
91%
ISO Whiteness meter
Ratio of length to diameter
/
4:1
Microscopic observation
Density of loose fitting
?Q0.30 g/cm2
0.290 g/cm2
BT-300 Bulk density meter
Vibratory density
/
/
BT-300 Vibratory density Meter
Water content
?Q0.2%
0.12%
105/2h
Oil absorption value
/
/
Titration
Mesh size
200 mesh ( 97% Rate of passing )
Wollastonite Usage
1. This product can be used as a body pigment and extender in the coating industry. Because it can increase the bright color of white paint, and can maintain this color tone for a long time.
2. The needle crystal of this product makes it a good safe agent for coatings and can improve the leveling of the coating.
3. The particle shape of the product makes it a good suspending agent for the coating, making the precipitation of the paint soft and easy to disperse. It can be used as a reinforcing agent in self-cleaning coatings.
4. This product is very alkaline, very suitable for polyvinyl acetate coating, so that the color pigment dispersion is uniform. Wollastonite also has improved corrosion resistance of metallic paints. In addition to waterborne coatings, it can also be used in primers, intermediate coatings, oil coatings, road marking coatings, etc., and can replace asbestos in asphalt coatings. It can partially replace titanium dioxide in latex paint without reducing whiteness and hiding power.
5. This product can also be used in metallurgy, ceramics, welding electrodes, plastics, rubber and other industries.
Wollastonite Packaging and Shipping
Packing: 25kg bag or drum ,1000kg bag
Delivery: by air ,by sea ,by courier
Wollastonite Storage
Stored in a cool dry place out of direct sunlight.
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