The products meet EP6 CHARACTERS:A white or almost white, hygroscopic powder, very soluble in water, freely soluble in ethanol, very slightly soluble in 2-propanol, practically insoluble in methyle…
The products meet EP6 CHARACTERS:A white or almost white, hygroscopic powder, very soluble in water, freely soluble in ethanol, very slightly soluble in 2-propanol, practically insoluble in methylene chloride. PH 4.5 to 6.0 Appearance of solution when freshly prepared, is clear and colourless Hydroquinone ≤0.1% Water 4.0% to 6.0% Heavy metals ≤20PPM residue on ignition ≤0.1% Contents 99.0% to 102.0%
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