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Home > Products > Catalysts And Auxiliaries > Printing And Dyeing Auxiliaries > Sodium thiosulfate 99% CAS NO 7772-98-7

Sodium thiosulfate 99% CAS NO 7772-98-7

Sodium thiosulfate 99% CAS NO 7772-98-7

Payment Type: L/C,T/T
Incoterm: FOB,CIF
Min. Order: 25 Kilogram
Delivery Time: 7 Days

Basic Info

    Model No.: cy7772-98-7

Additional Info

    Packaging: 25kg

    Productivity: 5000 TON

    Brand: cy

    Transportation: Ocean,Land

    Place of Origin: China

    Supply Ability: 10

    Certificate: Enterprise standard

    HS Code: 2830909000

    Port: QINGDAO

Product Description

Sodium Thiosulfate, also known as sodium hyposulfite, sodium hyposulfite, sodium hyposulfite, molecular formula: Na2S2O3. 5H2O. It is a common thiosulfate, colorless and transparent monoclinic crystal with a density of 1.667 g / cm 3. The melting point is 48 degrees Celsius at standard atmospheric pressure. Sodium thiosulfate is soluble in water and produces sulfur and sulfur dioxide by strong acid reaction.

Essential information

Chinese Name: sodium thiosulfate

Chinese alias: Diosmin granules; Sodium Thiosulfate Volumetric analysis standard solution;

English Name: Sodium thiosulfate

English alias: disodium, dioxido-oxo-sulfanylidene- lambda 6-sulfane

CAS: 7772-98-7

Molecular formula: Na2O3S2

Molecular weight: 158.10800

Exact mass: 157.90800 PSA:103.66000 LogP:0.50980

Physicochemical properties

Appearance and properties: colorless crystal or white powder.

Density: 1.01 g/mL at 25 °C

Melting point: 48 °C

Boiling point: 100 °C

Stability: Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury.

Storage conditions: 2-8°C

security information

Customs Code: 2830909000

WGK Germany:1

Danger category code: R36/37/38

Safety instructions: S24/25-S23-S36-S26

RTECS: XN6476000

Dangerous goods sign: Xi


It is mainly used in photographic industry as fixing agent. Secondly, it is used as reducing agent of dichromate, neutralizing agent of nitrogen tail gas, mordant, bleaching agent of wheat straw and wool and dechlorination agent of pulp bleaching. It is also used for the manufacture of tetraethyl lead, dyestuff intermediates, and silver extraction from ores.

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Product Categories : Catalysts And Auxiliaries > Printing And Dyeing Auxiliaries

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