Specifications
vermiculite is used as carrier and extender for fertilizer ,and usually size 4 or superfine verminculite is used in thisplaceRaw Gold Vermiculite details as following
1.Gold vermiculite size :
Raw golden vermiculite | 0-30um,0.3-0.65mm,0.65-1mm 20-40mesh,10-40mesh, ,0.3-1mm 1.5-2.5mm,1-2mm,2-4mm,3-8mm,4-8mm, |
Note:special size ,we can do as per client's requirements
2.Chemicals
Composition | SiO2 | MgO | Al2O3 | Fe2O3 | CaO | K2O | ph |
Percentage | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-2 | 5-8 | 7-11 |
The chemical analysis of both crude and exfoliated vermiculite is the same.
3.Physical property
Item | Specifications | Item | Specification |
Thermal Conductivity | 0.063 - 0.069w/m °C Under ambient conditions |
Porosity
| 1100-1200kgs/m3 |
Hardness | 1-1.5 | Compressive resistance | 100-150 Mpa |
Melting point | 1320°C-1370°C | asbestos | None |
Moisture content: | 5%max | Antibacterial activity, | Good |
Moisture absorbency | <2 | Corrosion resistance | Alkali-resitant |
Expansion ratios of raw vermiculite | 5.5-10times | Impurity | 18%max |
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