Sodium thiosulfate solution

Name: Sodium thiosulfate solution
Brand: MM

c(Na₂S₂O₃ ) ,1 M (1 N), ready-to-use volumetric solution for titration, Titripur^®

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UNSPSC Code:

12352302

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Nome del prodotto

Sodium thiosulfate solution, 1 M Na₂S₂O₃ (1 N), Titripur^®

product line

Titripur^®

form

liquid

quality

Analyzed in our ISO 17025 accredited QC lab

reaction suitability

reaction type: Redox Reactions

concentration

1 M Na₂S₂O₃ (1 N)

technique(s)

titration: suitable

storage temp.

15-25°C

Quality Level

200

Analysis Note

Form liquid
Amount-of-substance concentration 0.995 - 1.005 mol/L
Measurement uncertainty ± 0.003 mol/L
Traceability NIST SRM

The concentration is determined by volumetric titration and refers to 20°C.
The amount-of-substance concentration of this volumetric solution is traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 136 potassium dichromate) by means of volumetric standard potassium iodate (article number 1.02404), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.

Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.

Features and Benefits

Accreditation:
This volumetric solution is analyzed by our calibration laboratory D-K-15185-01-00 which is accredited according to DIN EN ISO/IEC 17025 for analysis of amount-of-substance concentrations in volumetric solutions by DAkkS (Deutsche Akkreditierungsstelle - German National Accreditation Body). The accreditation certificate can be found at www.sigmaaldrich.com/ISO17025.

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Legal Information

Titripur is a registered trademark of Merck KGaA, Darmstadt, Germany

related product

N° Catalogo

Descrizione

Determinazione del prezzo

1.02403

Potassium dichromate, volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur^® Reag. USP

1.04818

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1.09141

Sodium hydroxide solution, c(NaOH) = 0.1 mol/l (0.1 N), Titripur^®, reag. Ph. Eur., reag. USP

1.99005

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1.09065

Perchloric acid, in anhydrous acetic acid, for titrations in non-aqueous media c(HClO₄) = 0.1 mol/l (0.1 N), Titripur^®, reag. Ph. Eur., reag. USP

1.02410

Calcium carbonate, volumetric standard, secondary reference material for complexometry, traceable to NIST Standard Reference Material (SRM) Certipur^®

1.09081

Silver nitrate solution, c(AgNO₃) = 0.1 mol/l (0.1 N), Titripur^®, reag. Ph. Eur., reag. USP

1.02400

Potassium hydrogen phthalate, Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur^® Reag. Ph Eur

1.02405

Sodium carbonate, volumetric standard, secondary reference material for acidimetry, traceable to NIST SRM Certipur^®

1.02408

Tris(hydroxymethyl)aminomethane, volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur^® Reag. Ph Eur,Reag. USP

1.04817

Potassium chloride solution, 3 mol/l

1.09057

Hydrochloric acid solution, c(HCl) = 1 mol/l (1 N), Titripur^®, reag. Ph. Eur., reag. USP

1.02409

Zinc, volumetric standard, secondary reference material for complexometry, traceable to NIST SRM Certipur^® Reag. Ph Eur

1.02406

Sodium chloride, volumetric standard, secondary reference material for argentometry, traceable to NIST SRM Certipur^® Reag. Ph Eur,Reag. USP

1.02404

Potassium iodate, volumetric standard, secondary reference material for iodometry, traceable to NIST SRM Certipur^®

1.02401

Benzoic acid, volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur^® Reag. Ph Eur,Reag. USP

1.09060

Hydrochloric acid solution, c(HCl) = 0.1 mol/l (0.1 N), Titripur^®, reag. Ph. Eur., reag. USP

1.08431

Titriplex^® III solution, for metal titration c(Na-EDTA 2 HO) = 0.1 mol/l, Titripur^®, reag. Ph. Eur.

1.09137

Sodium hydroxide solution, c(NaOH) = 1 mol/l (1 N), Titripur^®, reag. Ph. Eur., reag. USP

1.02402

Iron(II) ethylenediammonium sulfate, Volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur^® Reag. Ph Eur

1.02407

di-Sodium oxalate, volumetric standard, secondary reference material for redox titration, traceable to NIST Standard Reference Material (SRM) Certipur^® Reag. USP

Classe di stoccaggio

12 - Non Combustible Liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificati d'analisi (COA)

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