SILICA, AMORPHOUS DIATOMACEOUS EARTH
DIATOMACEOUS EARTH CAS Number: DOT Number: None DOT Hazard Class: None HAZARD SUMMARY * Silica, Amorphous Diatomaceous Earth can affect you when breathed in. * This form of Silica is considered a nuisance dust and is not the same as Crystalline Silica. Uncalcined DIATOMACEOUS EARTH typically contains around 1% Crystalline Silica.