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Merck

217255

Potassium sodium tartrate tetrahydrate

ACS reagent grade, 99.0-102.0% (ACS specification), 99%, powder or crystals

Synonym(s):

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

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About This Item

Linear Formula:
KOCOCH(OH)CH(OH)COONa · 4H2O
CAS Number:
6381-59-5
Molecular Weight:
282.22
NACRES:
NA.21
PubChem Substance ID:
24853005
UNSPSC Code:
12352100
EC Number:
206-156-8
MDL number:
MFCD00150989
Beilstein/REAXYS Number:
6113568
Assay:
99%, 99.0-102.0% (ACS specification)
Grade:
ACS reagent
Form:
powder or crystals

Key Documents

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Product Name

Potassium sodium tartrate tetrahydrate, ACS reagent, 99%

InChI key

VZOPRCCTKLAGPN-ZFJVMAEJSA-L

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

SMILES string

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

grade

ACS reagent

agency

suitable for SM 4500 - NH3

assay

99%, 99.0-102.0% (ACS specification)

form

powder or crystals

impurities

≤0.005% insolubles

Quality Level

200

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)

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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.

Storage Class

11 - Combustible Solids

wgk

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ3607
MKCX7047
MKCX4956
MKCV9451
MKCW7740

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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)
Organic nonvolatile memory devices based on ferroelectricity.
Naber RCG, et al.
Advanced Materials, 22(9), 933-945 (2010)
Potassium sodium (2R, 3R)-tartrate tetrahydrate: the paraelectric phase of Rochelle salt at 105K.
Gorbitz CH and Sagstuen E.
Acta Crystallographica Section E, Structure Reports Online, 64(4), 507-508 (2008)
Nandini P Shetty et al.
Journal of experimental botany, 60(15), 4287-4300 (2009-11-03)
The accumulation of the pathogenesis-related (PR) proteins beta-1,3-glucanase and chitinase and structural defence responses were studied in leaves of wheat either resistant or susceptible to the hemibiotrophic pathogen Septoria tritici. Resistance was associated with an early accumulation of beta-1,3-glucanase and
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