Size:0.3-0.65mm 0.65-1mm 0.3-1mm
Color: Silver and Golden
Usage: Horticulture,Pharmacy .Sealing , Metallurgy.
Non-asbestos
Vermiculite is a natural mineral that expands with the application of heat. The expansion process is called exfoliation and it is routinely accomplished in purpose-designed commercial furnaces. Vermiculite is formed by weathering or hydrothermal alteration of biotite or phlogopite
Vermiculite ore specifications asfollowing :
1.Kind:silver vermiculite ,gold vermiculite
2.Technique:expanded and unexpanded
3.Vermiculite Chemicals :
Molecular formula | SiO2 | MgO | AI2O3 | Fe2O3 | FeO | K2O | H2O | CaO | PH |
Name | Silicon dioxide | Magnesium Oxide | Aluminium Trioxide | Iron trioxde | Iron Oxide | Potassium Oxide | Hydrogen oxide | Calcium oxide | PH |
Content% | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-3 | 5-8 | 7-18 | 1-2 | 8-11 |
Vermiculite Physical properties:
Density :220 Kg/m3-280 Kg/m3
Porosity: 1100 Kg/m3-1200 Kg/m3
Hardness:1-1.5
Melting point: 1320°C-1370°C
Compressive ressitance: 100 Mpa -150 Mpa
Index of refraction: Ng=1.525-1.561 Ng=1.545-1.581
Moisture conten: 7%
Moisture absorbency:<2
Anticongelation: good
Antibioticity: good
Corrosion resistance: Alkali-resitant
4.Packing :Ton bags or depand on client's requirements
5.Minimum order :24TONS
Delivery time :within 7-15days
Payments terms :T/T L/C
