Sodium chloride Ph.Eur 25KG Go Back

CASR

: 7647-14-5

Molecular Formula

: NaCl

Molecular Weight

: 58.44
Specifications  
Appearance: White or almost white, crystalline powder or colourless crystals or white or almost white pearls.
Solubility: Freely soluble in water, practically insoluble in anhydrous ethanol.
Identification A (Chloride): A white curdled precipitate should form which should dissolve in ammonia
Identification B (Sodium): A dense white precipitate should form
Appearance of Solution: Clear and colorless solution
Acidity & alkalinity: Not more than 0.5ml of 0.01M hydrochloric acid or 0.01M sodium hydroxide should require to change the colour of the indicator.
Bromide (Br): 100ppm max
Ferrocyanide[Fe(CN6)]: No blue colour should produce within 10 minutes.
Iodide(I): The mixture shows no blue colour.
Nitrite (NO2): The absorbance should not be greater than 0.01 at 354 nm
Phosphate (PO4): 25ppm max
Sulphate (SO4): 200ppm max
Arsenic (As): 1ppm max
Barium(Ba): Any opalescence in the solution should not more intense than that of reference solution .
Iron (Fe): 2ppm max
Magnesium and alkaline earth metals: 100ppm max
Loss on drying,105°C: 0.5% max
Assay (Dried substance): 99.0% - 100.5%
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