Maker : MERCK SIGMA-ALDRICH
Type : Sodium carbonate (ACS reagent, anhydrous, ≥99.5%, powder or granules)
CAS No. : 497-19-8
Pack Size : 500g
Part No. : 222321

PROPERTIES
grade
ACS reagent
anhydrous

Quality Level
200

assay
≥99.5%

form
powder or granules

impurities
≤0.005% silica
≤0.01% insolubles

loss
≤1.0% loss on heating, 285 °C

pH
12 (25 °C, 106 g/L)

mp
851 °C (lit.)

anion traces
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfur compounds (as SO42-): ≤0.003%

cation traces
Ca: ≤0.03%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)