Non-Calcined DE

 

Diatomaceous Earth Non-CalcinedUnlike calcined Diatomaceous Earth, non-calcined DE has grey colour and mostly amorphous silica (as opposed to a high percentage of crystalline silica in calcined DE). It is used in various industries and agriculture. The most well-known use of diatomaceous earth is as a natural insect killer – in agriculture, gardens and at home.

 

Physical Properties

 

Bulk Density            220 – 270 g/l
Moisture            3 – 6%
Absorption Capacity (water)    160 – 180% (v/w) (modified BASF method)

 

Sieve Analysis

 

Retained on 45µm sieve     20% max
Retained on 63µm sieve     16% max
Retained on 90µm sieve    10% max
Retained on 250µm sieve     3% max

 

Typical Chemical Analysis

 

SiO2    – 68%
Al2O3  – 9%
Fe2O3  – 6%
MgO     – 1%
CaO      – 1%
K2O + Na2O – 2%

 

Typical Characteristics

 

pH (10% aq. suspension) – 4.5
Specific weight – 2.3
Loss on Ignition – 8%

 

For more information and to order – please enquire here.