Merck *Merck - Sodium carbonate Sigma-Aldrich [500g]

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)