Sodium Carbonate BP 25KG Go Back

CASR

: 497-19-8

Molecular Formula

: Na2CO3

Molecular Weight

: 105.99
Specifications  
Appearance: A white or almost white, slightly granular powder,hygroscopic.
Solubility: Freely soluble in water, practically insoluble in ethanol (96%).
Identification A (By Chemical test): The solution should strongly alkaline.
Identification B (carbonate): A white precipitate should form that dissolves on addition of an excess of hydrochloric acid.
Identification C (Sodium): A dense white precipitate should form.
Identification D (By Loss on drying): 1.0% max
Appearance of solution: The solution is clear and not more intensely coloured than reference solution Y6
Alkali hydroxides and bicarbonates: The solution should remain clear.
Chlorides: NMT 125ppm
Sulfates: NMT 250ppm
Arsenic (As): NMT 5ppm
Iron (Fe): NMT 50ppm
Loss on drying: 1.0% max
Assay (Dried substance): 99.5% - 100.5%
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