Customization: | Available |
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CAS No.: | 10034-99-8 |
Formula: | Mgso4 |
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Item | Limit |
CHARACTERS |
Appearance :white or almost white, crystalline powder or brilliant, colourless crystals. |
Solubility : freely soluble in water, very soluble in boiling water, practically insoluble in ethanol(96 per cent ) | |
IDENTIFICATION |
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Appearance of solution | Solution S is clear and colourless |
Acidity and alkalinity | To 10mL of solution S add 0.05mL of phenol red solution R. Not more than 0.2mL of 0.01M hydrochloric acid or 0.01M sodium hydroxide is required to change the colour of the indicator. |
Chlorides | Not more than 300ppm |
Iron | Not more than 20ppm |
LOSS ON DRYING | 48.0per cent to 52.0per cent , determined on 0.500g by drying in an oven at 110-120ºC for 1h and then at 400ºC to constant mass. |
ASSAY | 99.0 per cent to 100.5 per cent (dried substance). |