Sodium thiosulfate purum p.a., anhydrous, (RT) (1Kg)

SKU:
72049-1KG
$177.00

Description

72049 Sigma-Aldrich

Sodium thiosulfate

purum p.a., anhydrous, ≥98.0% (RT)

  • CAS Number 7772-98-7

     

  • Linear Formula Na2S2O3

     

  • Molecular Weight 158.11

     

  •  EC Number 231-867-5

     

  •  MDL number MFCD00003499

     

  •  PubChem Substance ID 329763718

     

  •  NACRES NA.21

Description

General description

The product is anhydrous sodium thiosulfate (Na2S2O3). It can be obtained from Na2S2O3.10H2O by heating above 100°C. It can be synthesized from sodium sulfate.[1]

Application

Sodium thiosulfate (Na2S2O3) may be used in the following studies:
• Industrial synthesis of methylene blue.[2]
• Quantitative estimation of elemental iodine by titrimetry.[3]
• Detection of trace levels of cysteine by employing triangular silver nanoplates (TAg-NPs).[4]

Properties

Related Categories Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials, Salts,
More...
Quality Level   200
grade   purum p.a.
assay   ≥98.0% (RT)
form   crystals
pH   6.0-8.5 (25 °C, 50 mg/mL in H2O)
anion traces   sulfide (S2-): ≤50 mg/kg
cation traces   Ca: ≤50 mg/kg
  Cd: ≤50 mg/kg
  Co: ≤50 mg/kg
  Cu: ≤50 mg/kg
  Fe: ≤50 mg/kg
  K: ≤500 mg/kg
  Ni: ≤50 mg/kg
  Pb: ≤50 mg/kg
  Zn: ≤50 mg/kg
SMILES string   [Na+].[Na+].[O-]S([O-])(=O)=S
InChI   1S/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
InChI key   AKHNMLFCWUSKQB-UHFFFAOYSA-L