what is sodium thiosulfate used for

{"title":"White Sodium Sulfite Na2SO3 Monoclinic Crystal Inorganic Raw Materials","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6d\/8c\/08a5fa5789ad277d510e37de5cbf-200x200-1.jpg","attrs":{"Price":"Discussible","Brand Name":"yunxin","Model Number":"Industrial grade","Minimum Order Quantity":"5T","Delivery Time":"15 working days","Place of Origin":"china","Payment Terms":"T\/T","Supply Ability":"1000 tons per month","Packaging Details":"25kg or larger packaging","Foreign Name":"sodium sulfite","Chemical formula":"Na2SO3","CAS number":"7757-83-7","Molecular weight":"126.04","Melting point":"150\u2103","Density":"2.633","Solubility":"Easy to dissolve in water","Appearance":"White, monoclinic crystal or powder"}}

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