Email this pagePrint this page Diatomaceous Earth Go back to: Chemical Reagents, pH Indicators and Biological Stains Product Code: C1668 CAS# 61790-53-2 Hazard Rating4-Extreme 3-Severe 2-Moderate 1-Slight 0-Minimal Health0 Flammability0 Reactivity0 500 grams$8.78 each 12 x 500 grams$5.85 each 2.5 kg$25.33 each 4 x 2.5 kg$16.89 each 3-D Molecule Model of Diatomaceous Earth : From the ChemExper Chemical Directory MSDS for Diatomaceous Earth