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13479

Sigma-Aldrich

Sodium thiosulfate pentahydrate

puriss., meets analytical specification of Ph. Eur., BP, USP

Linear Formula:
Na2S2O3 · 5H2O
CAS Number:
Molecular Weight:
248.18
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

puriss.

Quality Level

assay

99.0-100.5% (USP, dry basis)
99.0-101.0% (EP)

form

crystalline

quality

meets analytical specification of Ph. Eur., BP, USP

impurities

residual solvents, complies
≤0.0005% heavy metals (as Pb)

loss

32-37% loss on drying, 16 h (vacuum)

pH

6.0-8.4 (20 °C, 10%)

anion traces

sulfate, sulfite (as SO42-): ≤2000 mg/kg
sulfide (S2-): in accordance

cation traces

As: ≤3 mg/kg
Ca: ≤50 mg/kg
Fe: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=S

InChI

1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2

InChI key

PODWXQQNRWNDGD-UHFFFAOYSA-L

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Related Categories

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More documents

Quotes and Ordering

Sodium thiosulfate pentahydrate: a redetermination by neutron diffraction.
Lisensky GC and Levy HA.
Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials, 34(6), 1975-1977 (1978)
Fingerprint imaging by scanning electrochemical microscopy.
Zhang M and Girault HH.
Electrochemical Communications, 9(7), 1778-1782 (2007)
Nuclear magnetic resonance in sodium thiosulfate pentahydrate.
Murty CRK and El Saffar ZM.
Acta Crystallographica, 15(6), 536-538 (1962)
Michael C Reade et al.
Emergency medicine Australasia : EMA, 24(3), 225-238 (2012-06-08)
Cyanide poisoning is uncommon, but generates interest because of the presumed utility of an antidote immediately available in those areas with a high risk of cyanide exposure. As part of its regular review of guidelines, the Australian Resuscitation Council conducted
Melani Sooriyaarachchi et al.
Metallomics : integrated biometal science, 5(3), 197-207 (2013-02-28)
Cis-Platin (CP) is a remarkably effective Pt-based anticancer drug, but it also exhibits severe toxic side-effects, including nephrotoxicity and ototoxicity. Previous studies conducted with mammalian model organisms have clearly demonstrated that the intravenous administration of N-acetyl-L-cysteine (NAC) or sodium thiosulfate

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