Diatomaceous Earth forms by the accumulation of the amorphous silica (opal , SiO2, nH2O) remains of dead diatoms (microscopic single – celled algae) in lacustrine or marine sediments. The fossil remains consist of a pair of symmetrical shells or frustules. Diatomaceous Earth is very soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder. It has a particle size ranging from less than 3 micrometer to more than 1 mm, but typically 10 20 200 micrometers. This powder can have an abrasive feel, similar to pumice powder, and is very light as a result of its high porosity. The typical chemical composition of oven – dried diatomaceous earth is 80 to 90 % silica, with 2 -4 % alumina and 0.5 to 2 % iron oxide.

TYPICAL PHYSICAL ANALYSIS:

Sr. No.  Particulars           Result

1              Appearance       Pale Yellow/ Off white Powder

2              Odour                   None

3              Fineness              92-95%

4              Moisture             8-10%

5              Water absorption            110 %

6              Bulk Density       0.43 gm/ml

7              pH(10% slurry)  7.5 to 8.4

8              L.O.I                       6 – 8%

TYPICAL CHEMICAL COMPOSITION:

Sr. No.  Particulars           Results (%)

1              SiO2                       80-84

2              Al2O3                    4-6

3              Fe2O3                   0.5-2

4              TiO2                       00.27

5              CaO                        00.23

6              MgO                      00.81

7              Na2O                     1.27

8              K2O                        00.18

9              P2O5                     00.09

10           MnO                      NIL

NOTE: All grades and sizes available and also calcined flux DIATOMACEOUS is available.

APPLICATIONS:

 PEST CONTROL

 USE IN AGRICULTURE

 FILTRATION

ABRASIVE

ABSORBENT

THERMAL

HYDROPONICS