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| Pumice: | |
1. Agrochemical Carrier
Pumice is a natural volcanic mineral, permeable and highly absorbent. This porosity and chemical inertness make pumice granules an efficient carrier for insecticides (seedling and leaf pests).
Pumice granules are available in 25/40kg polypropylene bags and IBC big bags. Store in dry environment.
| Physical properties | 16/40B | 20/40B | 3B |
| Granulometric range | 600-1400µm | 600-1180µm | 300-700µm |
| Colour | light grey | light grey | light grey |
| Water Breakdown | resistant | resistant | resistant |
| Absorptive Capacity/ Polar Compounds - (H2O) | 110g/100g | 110g | 120 |
| Absorptive Capacity/ Non Polar Compounds - (Petrol DIN51600) | 50g/100g | 50g/100g | 50g/100g |
| Ph | 8 | 8 | 8 |
| Moisture content | dry | dry | dry |
| Bulk Density (lb/cu.ft) | 28 | 28 | 28.7 |
| Surface area B.E.T, . (m2/g.) | 0.01m2/g | 0.01m2/g | 0.012m2/g |
| Pore Volume(cm3/100g) | 175cm3/100g | 175cm3/100g | 180cm3/100g |
The use of pumice in glasshouses improves heating performance and contributes in energy saving. The insulating properties of the mineral increase the temperature of the plant food thus favouring plants’nutrition and growth..
Due to the absorbing properties pumice water retention and gradual release enable a considerable reduction in irrigation time and assist nurseries in water shortage. Pumice can also perform as a natural filter in areas with exceptionally chemically rich water. Pumice is a lightweight natural aggregate commonly supplied in 5-15mm grade.
The porous nature of pumice improves soil ventilation and rooting and makes it ideal for pots and beds cultivation.
Physical properties |
Grade 5/15 |
Physical State |
Gravel |
Colour |
Light Grey |
Refractive Index |
1.5 |
Hardness (Mohs Scale) |
6.0 |
Melting Point |
1500OC |
pH Value |
8.0 |
True Density (ISO 787.10) |
2.356 (g/cm3) |
Apparent Bulk Density (FEPA ) |
0.800 - 0.835 (g/cm3) |
Tamped Bulk Density |
1.150 - 1.180 (g/cm3) |
Porosity |
60 - 64 % (cm3/100 cm3) |
True Volume |
48 - 52 % (cm3/ 100g) |
