Sodium thiosulfate pentahydrate

Name: Sodium thiosulfate pentahydrate
Brand: SIGALD

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

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About This Item

Linear Formula:

Na₂S₂O₃ · 5H₂O

CAS Number:

10102-17-7

Molecular Weight:

248.18

EC Number:

231-867-5

MDL number:

MFCD00149186

UNSPSC Code:

12352302

PubChem Substance ID:

329750194

NACRES:

NA.21

Assay:

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

Form:

crystalline

Key Documents

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agency

suitable for EPA 1621
suitable for ISO 25101

Quality Level

200

grade

puriss.

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 SO₄^2-): ≤2000 mg/kg
sulfide (S^2-): in accordance

cation traces

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

suitability

complies for appearance of solution

application(s)

PFAS testing

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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Show Differences

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This Item	1.06514	1.06516	217247
Sigma-Aldrich 13479 Sodium thiosulfate pentahydrate	SAFC 1.06514 Sodium thiosulfate pentahydrate	Supelco 1.06516 Sodium thiosulfate pentahydrate	Sigma-Aldrich 217247 Sodium thiosulfate pentahydrate
form crystalline	form crystalline, solid	form solid	form crystalline powder, crystals, pellets
assay 99.0-100.5% (USP, dry basis), 99.0-101.0% (EP)	assay -	assay 99.5-101.0% (iodometric)	assay ≥99.5%
Quality Level 200	Quality Level 500	Quality Level 300	Quality Level 200
grade puriss.	grade -	grade -	grade -
impurities residual solvents, complies, ≤0.0005% heavy metals (as Pb)	impurities -	impurities ≤0.005% Insoluble matter	impurities ≤0.002% N compounds, ≤0.005% insolubles
anion traces sulfate, sulfite (as SO₄^2-): ≤2000 mg/kg, sulfide (S^2-): in accordance	anion traces -	anion traces chloride (Cl^-): ≤0.008%, sulfate, sulfite (as SO₄^2-): ≤0.1%, sulfide (S^2-): passes test	anion traces S^2-: passes test, SO₄^2- and SO₃^2-: ≤0.1%

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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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)

A novel treatment for ulcerative calcinosis cutis.

Brooke Bair et al.

Journal of drugs in dermatology : JDD, 10(9), 1042-1044 (2011-11-05)

Calcinosis cutis is a term used to describe a group of disorders which result in calcium deposits in the skin. These disorders can be separated based on etiology. Sodium thiosulfate has been used to systemically treat calciphylaxis with little to

N-acetyl-L-cysteine modulates the metabolism of cis-platin in human plasma in vitro.

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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