disodium 1-oxo-1λ6-disulfene-1,1-bis(olate)

• ChemBase ID: 129567
• Molecular Formular: Na2O3S2
• Molecular Mass: 158.10774
• Monoisotopic Mass: 157.90842442
• SMILES: [Na+].[Na+].[O-]S(=O)(=S)[O-]
• Canonical SMILES: [O-]S(=S)(=O)[O-].[Na+].[Na+]
• InChI: InChI=1S/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChIKey: AKHNMLFCWUSKQB-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: disodium 1-oxo-1λ^6-disulfene-1,1-bis(olate)
• IUPAC Traditional name: disodium hypo
• Synonyms: Sodium thiosulfate, 0.1N Standardized Solution; Sodium thiosulfate, 1.0N Standardized Solution; Sodium thiosulfate, 0.01N Standardized Solution; Sodium thiosulfate, Acculute Standard Volumetric Solution, Final Concentration 0.1N; Sodium thiosulfate pentahydrate; Sodium hyposulfite; Hyposulphite of soda; Sodium thiosulfate; Sodium thiosulfate; Sodium thiosulfate solution; Sodium thiosulfate solution; Sodium thiosulfate concentrate; Hypo alcohol; 硫代硫酸钠, 0.1N标准溶液; 硫代硫酸, 1.0N钠标准溶液; 硫代硫酸钠, 0.01N标准溶液; 硫代硫酸钠, 可稀释标准标定液, 最终浓度 0.1N; 硫代硫酸钠五水合物; 硫代硫酸钠; 硫代硫酸钠 溶液; Hypo alcohol

Database IDs

• CAS Number: 10102-17-7; 7772-98-7
• EC Number: 231-867-5; 231-791-2
• MDL Number: MFCD00149186; MFCD00003499
• Merck Index: 148694
• PubChem SID: 24853006; 24861257; 24861774; 24895883; 24863895; 24863855; 24861777; 24880083; 24886350; 24859174; 24888312; 162223857; 24861775
• PubChem CID: 24477
• CHEMBL: 1201157
• Chemspider ID: 22885
• Unique Ingredient Identifier: L0IYT1O31N
• Wikipedia Title: Sodium_thiosulfate

CALCULATED PROPERTIES

• Acid pKa: 2.69897
• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): -2.1907825
• LogD (pH = 7.4): -2.3771908
• Log P: 0.048317563
• Molar Refractivity: 19.5183 cm^3
• Polarizability: 9.065478 Å^3
• Polar Surface Area: 63.19 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: : soluble (solution); 70.1 g/100 mL (20 °C) ; 231 g/100 mL (100 °C) in water; negligible in alcohol
• Apperance: Liquid; powder; White crystals
• Melting Point: 48.3 °C (pentahydrate); 48°C
• Boiling Point: 100 °C (pentahydrate, - 5H₂O decomp.); 100°C -5H{2}O
• Flash Point: Non-flammable
• Density: 1.01 g/mL at 20 °C; 1.01 g/mL at 25 °C; 1.667 g/cm^3; 1.69
• Refractive Index: 1.489
• Odor: Odorless
• pH: 6.0-8.5 (20 °C, 5%); 6.0-8.5 (25 °C, 50 mg/mL in H2O)

Safety Information

• RTECS: WE6660000; XN6476000
• German water hazard class: -; 1; nwg
• TSCA Listed: 是
• EU Index: Not listed
• NFPA704:
  

  0

  1

  0
• Personal Protective Equipment: Eyeshields, Gloves; Eyeshields, Gloves, half-mask respirator (US), multi-purpose combination respirator cartridge (US); Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• Storage Temperature: 2-8°C

Product Information

• Purity: ≥90.0%; ≥98% (calc. to the dried substance); ≥98.0% (RT); ≥99%; ≥99.99% trace metals basis; 99%; 99+%
• Concentration: 0.01 M; 0.01 M Na2S2O3 (0.01N); 0.02 M; 0.025 M; 0.0394 M Na2S2O3 (0.0394N); 0.05 M Na2S2O3 (0.05N); 0.0950-0.1050 N (Exact value stated on label); 0.1 M; 0.1 M Na2S2O3 (0.1N); 0.2 M Na2S2O3 (0.2N); 0.5 % (w/v) sodium thiosulfate in H2O; 1 M; 1 M Na2S2O3 (1N); 1 N; 1/10 N; 1/100 N; 1/40 N; 1/50 N; in ethanol
• Grade: purum p.a.; Reag. Ph. Eur.; ReagentPlus®; SAJ first grade
• Packaging: pkg of 0.01 mol (2.482 g Na2S2O3·5H2O); pkg of 0.1 mol (24.818 g Na2S2O3·5H2O)
• Description: For use in the Silver Stain Kit No. HT100-A
• Impurities: ≤0.005% heavy metals (as Pb)
• 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
• Antion Traces: chloride (Cl-): ≤1500 mg/kg; sulfate, sulfite (as SO42-): ≤1%; sulfide (S2-): ≤50 mg/kg
• Clinical: for in vitro diagnostic use
• Shelf Life: (Expiry date on the label)
• Loss on Drying: ≤2% loss on drying, 105 °C, 2 h
• Quality Level: IVD; PREMIUM
• Quality: for the determination of iodine adsorption number according to ASTM D 1510; volumetric
• Factor: 1.000 ±0.001; 1.000 ±0.002
• Linear Formula: Na2S2O3

DETAILS

Sigma Aldrich - S7026

Application
与硝酸银一起使用，生成含有乙烯抑制离子的 [Ag(S2O3)2]-,3 的硫代硫酸银溶液 (STS)。

Sigma Aldrich - HT1005

Application
For use in the Silver Stain Kit No. HT100-A

Sigma Aldrich - 563188

Packaging
100 g in poly bottle
25 g in glass bottle

Sigma Aldrich - 35224

General description
Visit our Titration Center to learn more.
Packaging
The suffix -VP or -VOLPAC in the product number indicates packaging in 5 or 10 L VOLPAC containers.

Sigma Aldrich - 38200

General description
Visit our Titration Center to learn more.
concentration after dilution to 1L: 0.1mol/L (0.1N); amount of substance 0.1mol (24.818 g Na2S2O3 · 5H2O)

Sigma Aldrich - 34449

General description
Visit our Titration Center to learn more.
Packaging
The suffix -VP or -VOLPAC in the product number indicates packaging in 5 or 10 L VOLPAC containers.

Sigma Aldrich - 35245

General description
Visit our Titration Center to learn more.
Packaging
The suffix -VP or -VOLPAC in the product number indicates packaging in 5 or 10 L VOLPAC containers.

Sigma Aldrich - 35244

General description
Visit our Titration Center to learn more.

Sigma Aldrich - 38243

General description
Visit our Titration Center to learn more.
concentration after dilution to 1L: 0.01mol/L (0.01N); amount of substance 0.01mol (2.482 g Na2S2O3 · 5H2O)

Sigma Aldrich - 319546

General description
Visit our Titration Center to learn more.
Packaging
2 L in poly bottle
500 mL in poly bottle

Sigma Aldrich - 35233

General description
Visit our Titration Center to learn more.
Packaging
The suffix -VP or -VOLPAC in the product number indicates packaging in 5 or 10 L VOLPAC containers.

Sigma Aldrich - 217263

Packaging
1, 2.5 kg in poly bottle
250 g in poly bottle
5 g in glass bottle
Application
Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes.1
Legal Information
ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC