在线聊天
1.Description:
Vermiculite is a layer-structured metamorphic rock of gibbsite silicate.It has been used in various industries for over 80 years. The name 'Vermiculite' is derived from the Latin 'vermiculare'meaning worm-like.
2.Chemical properties:
Chemical quota: Mg x (H2O)(Mg3-x)(ALSiO3O10)(OH2)
Molecular | SiO2 | MgO | AI2O3 | Fe2O3 | FeO | K2O | H2O | CaO | PH | Loss in burning 800°C/Hour |
Content | 37-42% | 11-23% | 9-17% | 3.5-18% | 1-3% | 5-8% | 7-18% | 1-2% | 7-8 | 4.5-7.5% |
3. Physical properties of Vermiculite:
Vermiculite sheet Density | Expanded vermiculite Porosity | Hard-ness | Melting | Compressive | Index of | Moisture | Moisture | Anti | Antibio-ticity | Corrosion |
Kg/m3 | Kg/m3 |
| °C | Mpa | Ng=1.525-1.561 | % | % |
|
|
|
1100-1200 | 110-280 | 1-1.5 | 1320-1370 | 100-150 | Ng=1.545-1.581 | 7 | < 2 | good | good | Alkali- |
4.Norms of raw vermiculite (Implementation standards JC/T810-1996)
Categories | No.1 | No.2 | No.3 | No.4 | No.5 | No.5 |
Size mm | 8-16 | 4-8 | 2-4 | 1-2 | 0.5-1 | < 0.5 |
Sand contend % |
| ≤10 | ≤12 | ≤15 | ≤15-20 |
|
Expansion coefficient |
| 8 times | ≥7-8 times | >7 times | 6.5-7 times |
|
5. Main Use and Functions:
Agriculture | Horticulture | Construction | Industry |
Animal feed | Blocking mixes | Sound Absorption Loose Filling | Thermal Insulation.Refracory |
Anti-caking material | Hydroponics | Air setting binder | Sound Absorption Loose Filling |
Bulking agent | Micro-propagation | Construction Coating | Gaskets or Seals |
Fertilizer carrier | Rooting cuttings | Fireproofing Board | Friction Linings |
Seed encapsulated | Seed germination | Gypsum plaster | Packing Materials |
Soil conditioner | Sowing composts | Loft insulation | Drilling mud |
Pesticide carrier | Potting mixes | Vermiculite Screeds | Filtration |
Incubation animal |
| Lightweight Concretes | Brake pads & brake shoes |
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| Fixation of hazardous material |
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| Paints |
6.Business terms:
A. Delivery time: according to the quantity of the order,
normally 15 -25 days after we got your down payment or notice of L/C
B. Payment terms: T/T or L/C
C: Sample: Sample under 500g is free with freight collected.
D. Shipping: We accept the pointed forwarder or book with our forwarder for customer
