China Red Volcanic Rock Granule Natural Pumice Stone

Product Descriptions:
1.Volcanic stone is a functional kind of environmental protection material.
2.It is a kind of precious and porous basalt and formed by volcanic glass ,mineral and air bubble in the process of volcanic eruption.
3.It contains dozens of minerals and microelements, such as sodium, magnesium, aluminum, silicon, calcium, titanium, manganese, iron, nickel, cobalt and molybdenum and so on.
4.It has no radiation but has far infrared magnetic wave.

Chemical composition & Physical Properties

Chemical compositionPhysical PropertiesElementContent %Volume-weight(kg/m3)430-870SiO253.82Water absorption11.7-17.03%CaO8.36Loose volume-weight(kg/m3)520MgO2.46Cylinder pressure strength1.218MpaFe2O39.08Moisture1%FeO1.12Mechanical Intensity5.08MpaAl2O316.89Heat conductivity coefficient w/(m.k)0.326TiO30.06Soften coefficient0.84K2O2.30 Na2O2.55

Biochemical stability:
1. volcanic rock biofilter is corrosion-resistant, inert, and does not participate in biochemical reaction of biofilm in the environment.
2. Surface electricity and hydrophilicity: the surface of volcanic rock biofilter has positive charge, which is conducive to the growth of microorganisms, strong hydrophilicity, and the amount of attached biofilm is large and fast.
3. The influence on the activity of biofilm: as the carrier of biofilm, volcanic rock biofilter is harmless and has no inhibitory effect on the fixed microorganism.

Specification:

ColorRed / Black / DarkSize1-3mm; 3-5mm; 5-7mm; 7-10mm; 5-10mm; 1-2cm; 2-4cm; 3-5cm; 5-10cm; 10-15cm; 15-20cm, 20-30cm, 30-40cmAppearancestone, particle, powder.

Shipment & Package
Packaging: 25 / 50kg per bag or ton bag or customized package.
MOQ: A 20 feet container.
Lead time: Shipped in 10-20 days after receiving the advanced payment.
Sample lead time: 3 days
We can offer you the sample freely, you just need to pay the freight.
Application:
1.Construction (Floor, Hollow Brick, Seepage Brick).
2.Chemical Industry ( Water Conservancy, Filtering Agent, Drying Agent, Grinding ).
3. Gardening (Bonsai, Fish Tank, Landscaping, Garden Crafts)
4. Agriculture (Soilless Cultivation, Soil Protection, Environment)
5. Plastics Industry (Rubber Filler, Plastic Polishing Agent)