Potassium sodium tartrate tetrahydrate, 500G

SKU:
217255-500G
  • $123.00

    • Description

    Potassium sodium tartrate tetrahydrate

    Synonym(s):
    L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
    Linear Formula:
    KOCOCH(OH)CH(OH)COONa · 4H2O
    CAS Number:
    6381-59-5
    Molecular Weight:
    282.22
    Beilstein/REAXYS Number:
    6113568
    EC Number:
    206-156-8
    MDL number:
    MFCD00150989
    PubChem Substance ID:
    24853005
    NACRES:
    NA.21

    PROPERTIES

    grade

    ACS reagent

    Quality Level

    200

    agency

    suitable for SM 4500 - NH3

    assay

    99%
    99.0-102.0% (ACS specification)

    form

    powder or crystals

    impurities

    ≤0.005% insolubles

    pH

    6.0-8.5

    anion traces

    chloride (Cl-): ≤0.001%
    phosphate (PO43-): ≤0.002%
    sulfate (SO42-): ≤0.005%

    cation traces

    Ca: ≤0.005%
    Fe: ≤0.001%
    NH4+: ≤0.002%
    heavy metals: ≤5 ppm (by ICP)

    SMILES string

    O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O

    InChI

    1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1

    InChI key

    VZOPRCCTKLAGPN-ZFJVMAEJSA-L

    General description

    Potassium sodium tartrate tetrahydrate is a ferroelectric crystal[1] with a high piezoelectric effect and electromechanical coupling coefficient.[2]

    Application

    Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.[3] It may be used as a constituent to prepare DNS (3,5- dinitrosalicylic acid) reagent and Fehling′s solution B, which are used in the determination of reducing sugar.[4][5]

    SAFETY INFORMATION

    Storage Class

    11 - Combustible Solids

    wgk_germany

    WGK 1

    ppe

    Eyeshields, Gloves, type N95 (US)