Sodium thiosulfate solution, 4L

SKU:
1091474000
  • $120.00

    • Description

    Sodium thiosulfate solution, 4L

    c(Na2S2O3 5 H2O) = 0.1 mol/l (0.1 N), Titripur, reag. Ph. Eur., reag. USP

    Synonym(s):
    Antichlor
    This product features our Titripac packaging technology to reduce the risk of contamination.

    PROPERTIES

    Quality Level

    200

    Agency

    reag. Ph. Eur.
    reag. USP

    product line

    Titripur®

    form

    liquid

    quality

    Analyzed in our ISO 17025 accredited QC lab

    reaction suitability

    reaction type: Redox Reactions

    packaging

    Titripac® of

    concentration

    0.1 M

    technique(s)

    titration: suitable

    pH

    9-10 (20 °C in H2O)

    density

    1.01 g/cm3 at 20 °C

    storage temp.

    15-25°C

    DESCRIPTION

    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). 

    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. 
    Titripac® packaging - all SKU-pack size numbers ending "4000, 4003, 9010, 9013"

    Linkage

    Replaces: SX0821; SX0821-3; SX0821-8

    Analysis Note

    Form liquid
    Amount-of-substance concentration 0.0995 - 0.1005 mol/L
    Measurement uncertainty ± 0.0003 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.

    Legal Information

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