Sodium Thiosulphate USP
Sodium Thiosulphate also known as sodium hyposulphite is an efflorescent crystalline substance that dissolves readily in water. It occurs in the anhydrous and pentahydrate forms.
It is used as a photographic fixer for both film and photographic paper processing. It is also used as a neutralizing bleach to dechlorinate tap water, as a component in hand warmers and other chemical heating pads, in the tanning of leather, in pharmaceutical preparations as an anionic surfactant and as an antidote to cyanide poisoning.
Chemical Name: Sodium Thiosulphate
Synonyms: Sodium Hyposulphite
Mol. Formula: Na2S2O3.5H2O
Mol. Weight: 248.19 g/mol
CAS No.: 10102-17-7
|Appearance||It appears as transparent crystals or pellets|
|Solubility||Freely soluble in water|
|Appearance of solution||The solution is clear and colorless|
|Water||Between 32% and 37%|
|Heavy metals||Maximum 0.002%|
|Residual solvents||Meets the requirements|
|Assay||Not less than 99% 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.