217255

Sigma-Aldrich

Potassium sodium tartrate tetrahydrate

ACS reagent, 99%

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

Quality Level

grade

ACS reagent

assay

99%
99.0-102.0% (ACS specification)

form

powder or crystals

impurities

≤0.005% insolubles

pH

6.0-8.5

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: ≤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

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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.

Packaging

2.5 kg in poly bottle
12 kg in fiber drum
100, 500 g in poly bottle

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Organic nonvolatile memory devices based on ferroelectricity.
Naber RCG, et al.
Advanced Materials, 22(9), 933-945 (2010)
Fundamentals of Piezoelectric Sensorics: Mechanical, Dielectric, and Thermodynamical Properties of Piezoelectric Materials, 11-11 (2010)
In vitro Studies: Inhibition of Nevirapine Metabolism by Nortriptyline in Hepatic Microsomes
Usach I and Peris JE.
Antimicrobial Agents and Chemotherapy (2014)
Screening of African traditional vegetables for their alpha-amylase inhibitory effect.
Odhav B, et al.
Journal of Medicinal Plants Research, 4(14), 1502-1507 (2010)
Wen-Bin Du et al.
Analytical chemistry, 82(23), 9941-9947 (2010-11-04)
This paper describes DropLab, an automated microfluidic platform for programming droplet-based reactions and screening in the nanoliter range. DropLab can meter liquids with picoliter-scale precision, mix multiple components sequentially to assemble composite droplets, and perform screening reactions and assays in...

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