sodium thiosulphate pentahydrate 99% extrapure

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Description

CAS 10102-17-7
Molecular Formula Na2S2O3.5H2O
Molecular Weight 248.17
Shelf Life 60 Months
Physical Properties
Physical State at 20 °C Solid Colour Colorless crystals
Odour Odorless pH Value 6 – 8.5
Melting Point/ Freezing Point [°C] 48°C Boiling Point [°C] > 100°C
Density [g/cm3] 1.75 Solubility in Water [% weight] 79g/100 ml water @ 40C
Specifications
Appearance Large, colorless crystals or white coarse crystalline powder Assay (Iodometric) 99-100.5%
Identity Passes test Appearance of Solution Dissolve 10.0 g in 50 ml of distilled water R, add 1 ml of 0.1 M sodium hydroxide and dilute to 100 ml with the same solvent. Clear & colourless
pH (10% Solution in Water) 6.0 – 8.4 Chloride (Cl) Max 0.05%
Sulphate And Sulphite (As So4) Max 0.2% Sulphide (S) Passes test
Heavy Metal (As Pb) Max 0.001% Calcium (Ca) Passes test
Dangerous Goods Information
UN Number – DG Class –

sodium thiosulphate pentahydrate 99% extrapure

Price range: $13.25 through $109.35

SKU C02527-00500-HS Category
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