Appearance :
White or light yellow crystalline powder
Assay :99.0% min.
Heavy metals :5ppm max.
Colour (Gardner-10% aqueous solution) :1.0 max.
Loss on drying a.5.0% max
b. 3.0% max
PH value :1.2-2.2
UV Absorbance Max @285nm 460 min.
UV Absorbance Max @325nm 290 min.
Melting Point (ípC) :140 min.
Turbidity in water (EBC) :1.5 max
500KG per lot no.
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