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Sulfates

Sodium thiosulfate pentahydrate (31459)

analytical reagent, Reag. ACS, Reag. ISO, Reag. Ph. Eur., assay min. 99.5%

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General Information

  • Application
    • Industrial
  • CAS Number
    • 10102-17-7
  • Molar Mass
    • 248.18 g/mol

Physical Properties

  • Density
    • 1.73 g/cm3 20 °C
  • pH
    • 6.0 to 8.4 at 100 g/l 20 °C
  • Boiling Point/Range
    • Decomposes on heating.
  • Odor
    • Odorless
  • Physical Form
    • Crystalline powder
  • Color
    • Colorless
  • Melting Point/Range
    • Decomposition: 48 °C
  • Solubility in Water
    • 0 °C
  • Vapor Pressure
    • No data available

Safety Information

  • Incompatible Materials
    • Incompatible with strong acids, Oxidizers, Nitrates
  • Chemical Stability
    • Stable under recommended storage conditions.
  • Thermal Decomposition
    • Loss of water of crystallization on heating.
  • Flammability
    • The product is not flammable.
  • Self Ignition
    • Not auto-flammable

International Transportation

  • Harmonized System Code
    • 28323000

General Information

  • Application
    • Industrial
  • CAS Number
    • 10102-17-7
  • Molar Mass
    • 248.18 g/mol

Physical Properties

  • Density
    • 1.73 g/cm3 20 °C
  • pH
    • 6.0 to 8.4 at 100 g/l 20 °C
  • Boiling Point/Range
    • Decomposes on heating.
  • Odor
    • Odorless
  • Physical Form
    • Crystalline powder
  • Color
    • Colorless
  • Melting Point/Range
    • Decomposition: 48 °C
  • Solubility in Water
    • 0 °C
  • Vapor Pressure
    • No data available

Safety Information

  • Incompatible Materials
    • Incompatible with strong acids, Oxidizers, Nitrates
  • Chemical Stability
    • Stable under recommended storage conditions.
  • Thermal Decomposition
    • Loss of water of crystallization on heating.
  • Flammability
    • The product is not flammable.
  • Self Ignition
    • Not auto-flammable

International Transportation

  • Harmonized System Code
    • 28323000
  • Application : Industrial
  • CAS Number : 10102-17-7
  • Molar Mass : 248.18 g/mol
  • Density : 1.73 g/cm3 20 °C
  • pH : 6.0 to 8.4 at 100 g/l 20 °C
  • Boiling Point/Range : Decomposes on heating.
  • Odor : Odorless
  • Physical Form : Crystalline powder
  • Color : Colorless
  • Melting Point/Range : Decomposition: 48 °C
  • Solubility in Water : 0 °C
  • Vapor Pressure : No data available
  • Incompatible Materials : Incompatible with strong acids, Oxidizers, Nitrates
  • Chemical Stability : Stable under recommended storage conditions.
  • Thermal Decomposition : Loss of water of crystallization on heating.
  • Flammability : The product is not flammable.
  • Self Ignition : Not auto-flammable
  • Harmonized System Code : 28323000
Property
Value
assay
Min. 99.5 %
water insoluble matter
Max. 0.005 %
pH (5 %, 25 °C)
6.0 - 7.5
pH (10 %, 20°C)
6.0 - 8.4
calcium (Ca)
Max. 0.002 %
copper (Cu)
Max. 0.0005 %
iron (Fe)
Max. 0.0005 %
potassium (K)
Max. 0.001 %
magnesium (Mg)
Max. 0.001 %
lead (Pb)
Max. 0.0005 %
chloride (Cl)
Max. 0.01 %
sulfate and sulfite(as SO4)
Max. 0.1 %
sulfide (S)
Max. 0.0001 %
total N
Max. 0.002 %
appearance of the solution
complying