|Characters||It occurs as a white or almost white, slightly granular powder, hygroscopic|
(a)Dissolve 1gm in water and dilute to 10ml. The solution is strongly alkaline.
(b)It gives the reaction of carbonates
(c)It gives the reaction of sodium
(d) Loss on drying
|Solubility||Freely soluble in water, practically insoluble in ethanol (96%)|
|Appearance of solution||The solution is clear and not more intensely colored than the reference solution Y6.|
|Alkali hydroxides and bicarbonates||Specified Test. The solution remains clear.|
|Chlorides||Not more than 125 ppm|
|Sulphates||Not more than 250 ppm|
|Arsenic||Not more than 5 ppm|
|Iron||Not more than 50 ppm|
|Loss on drying||Not more than 1.0%|
|Heavy metals||Not more than 50 ppm|
|Assay||Not less than 99.5% and not more than 100.5%
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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We observe WHO Good manufacturing practice and Good laboratory practice.