Sigma-Aldrich

Potassium Sodium Tartrate Tetrahydrate ACS Reagent, 99%, 500 grams

Part Number:
MIL-217255-500G
Lead Time:
2-4 weeks
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Size:
500 grams
Style:
chemical
DOT Rated:
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Price: $153.01

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Description

Potassium Sodium Tartrate Tetrahydrate ACS Reagent, 99% &, 500 Gram

Synonym: L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt

  • CAS Number 6381-59-5
  • Linear Formula KOCOCH(OH)CH(OH)COONa · 4H2O
  • Molecular Weight 282.22
  • Beilstein/REAXYS Number 6113568
  • EC Number 206-156-8
  • MDL number MFCD00150989
  • PubChem Substance ID 24853005
Grade ACS reagent
Assay

99%
99.0-102.0% (ACS specification)

Impurities ≤0.005% insolubles
pH range 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 (as Pb): ≤5 ppm

General description

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

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. 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.

Safety Information

RIDADR NONH for all modes of transport
WGK Germany 1

Documents

Safety Data Sheet

Warnings

Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning

Please note: This product is not returnable.

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MPN:
217255-500G