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Merck
CN

13479

Sodium thiosulfate pentahydrate

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
NACRES:
NA.21
PubChem Substance ID:
329750194
UNSPSC Code:
12352302
EC Number:
231-867-5
MDL number:
MFCD00149186
Assay:
99.0-100.5% (USP, dry basis), 99.0-101.0% (EP)
Form:
crystalline

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InChI key

PODWXQQNRWNDGD-UHFFFAOYSA-L

InChI

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

SMILES string

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

agency

suitable for EPA 1621, suitable for ISO 25101

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 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

application(s)

PFAS testing

Quality Level

200

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Related Categories

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

13 - Non Combustible Solids

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX8963
MKCT0761
MKCS7412
MKCS0294
MKCS6994

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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)
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)
I A Checheriţă et al.
Chirurgia (Bucharest, Romania : 1990), 108(5), 736-740 (2013-10-26)
In the present article, we discuss the case of 67-year-old female patient diagnosed with inferior limbs calciphylaxis and hemodialyzed since 2006. The clinical manifestations and pathological lab findings are typical for this rare and extremely severe complication in chronic hemodialyzed
Steven B Dethloff
Nephrology nursing journal : journal of the American Nephrology Nurses' Association, 39(4), 323-325 (2012-10-16)
Though CUA therapy with IP sodium thiosulfate represents an off-label usage of the drug, reports of its successful use are on the rise. It continues to be successfully administered both IP and IV, and in adult and pediatric populations. The
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