Salts & Minerals
REACH
Diatomite
CAS Number
61790-53-2
EC Number
612-383-7
Abbreviation
DE
What is Diatomite?
Diatomite (CAS 61790-53-2), also known as diatomaceous earth or DE, is a naturally occurring siliceous sedimentary material mined from fossilized algae deposits.
Where is Diatomite used?
- Water treatment and beverage processing: depth filtration medium clarifying beer, wine and municipal water
- Agriculture: grain protectant and soil amendment that disrupts insect exoskeletons without synthetic chemistry
- Construction and building materials: pozzolanic additive and lightweight filler in insulation products and cement blends
- Home care and industrial cleaning: mild abrasive and absorbent carrier in powdered cleansers and spill control products
- It functions as a filtration aid, absorbent and mild abrasive in industrial processes.
Good to know: Calcined and flux-calcined grades are available for higher-flow filtration. Food-grade and filter-aid grades meet FCC and food-contact standards for beverage and edible oil processing.
Commercial specifications
- Calcined and flux-calcined grades for higher-flow filtration
Other Names (Synonyms)
Diatomaceous earth|DE
What are the physical properties of Diatomite?
Melting Point 1710 °C
Boiling Point 2200 °C
Density 2.3 g/cm³
Appearance Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Color 965
Odor odorless
Form rod ( 1 / 8 ")
Water Solubility insoluble
pH ~7 (25℃, 10% in aq. suspension)
Which trade and regulatory codes apply to Diatomite?
HS Code 25120000
Storage Class 13 - Non Combustible Solids
WGK (Germany) 2