1) Color Golden
2) Size 1-3mm, 2-4mm, 3-6mm, 4-8mm
3) Pack 20l/50l/100lbag,
4) Features
light weight, Free from disease, weeds and insects; high water holding capacity;
Porous, will improve aeration and drainage.
5) Use to Agriculture soil amendmends, hydroponic grow media, aquaponic, greenroof,etc.
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Horticulture, vermiculite can be used for flowers, vegetables, fruit cultivation, seedling raising and so on. In addition to potting soil and regulators, it is also used for soilless culture. As a nutrient base for growing potted trees and commercial beds, it is especially advantageous for the transplanting and transportation of plants. Vermiculite can effectively promote plant root growth and seedling growth is stable. Provide water and nutrients necessary for plant growth for long periods of time and maintain the stability of root sun temperature. Vermiculite can make crops from the early stages of growth can be sufficient water and minerals, to promote rapid growth of plants, increase production
Vermiculite is a member of the phyllosilicate group of minerals, resembling mica in appearance. It is found in various parts of the world, vermiculite is basically a hydrated phlogopite mica which has the remarkable ability to expand to many times than its original volume when heated at 850 °C.Vermiculite is most widely used in its exfoliated form. The concertina-shaped granules of exfoliated vermiculite are non-combustible as well as being insoluble in water and all organic solvents.
1.Description:
| Name | Vermiculite |
| Color | Gold or silver |
| Size | 0-30um0.3-0.6mm0.65-1mm0.3-1mm0.5-1.5mm0.5-1.2mm 1.2-3.5mm1.5-2.5mm1-2mm2-4mm3-6mm3.5-7mm,4-8mm,etc |
| Features | poisonless, odorless , corrosion-resistant, Non-combustible , natural refractory properties , Good thermal insulation , low density ,etc |
2.Chemical properties:
Chemical quota: Mg x (H2O)(Mg3-x)(ALSiO3O10)(OH2)
| Molecular formula | 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% |
| heet Density | Expanded vermiculite Porosity | Hard-ness | Melting point | Compressive resistance | Index of refraction | Moisture content | Moisture absorbency | Anti congelation | Antibio-ticity | Corrosion resistance |
| 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- resit |
a.Reletive humidity 100% 24H.
b. Frozen and melted for 15 minutes in 20 under zero, its size won't change
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 | |
| Fixation of hazardous material | |||
| Paints |