We offer Sodium Thiosulphate, which is a colorless crystalline compound that is more familiar as the pent hydrate, Na2S2O35H2O, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or hypo. It is used for both photographic film and photographic paper processing. Sodium Thiosulphate is extensively used in medical world. It is used as an antidote to cyanide poisoning. It has also been used as treatment of calciphylaxis in hemodialysis patients with end-stage renal disease. It is used in the management of extravasations during chemotherapy. It can also be used as a very interesting solute in supersaturation experiments. It is used in foot baths for prophylaxis of ringworm, and as a topical antifungal agent for tinea versicolor. It is also used in measuring the volume of extracellular body fluid and the renal glomerular filtration rate. Sodium Thiosulphate is used as a component in hand warmers and other chemical heating pads that produce heat by exothermic crystallization of a super cooled solution. It is also used in bleach.