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Merck
CN

32312

Potassium sodium tartrate tetrahydrate

ACS reagent grade, ≥99.5% (perchloric acid titration), puriss. p.a., reag. ISO, reag. Ph. Eur.

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:
57648645
UNSPSC Code:
12352100
EC Number:
206-156-8
MDL number:
MFCD00150989
Beilstein/REAXYS Number:
6113568
Assay:
≥99.5% (perchloric acid titration)

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Product Name

Potassium sodium tartrate tetrahydrate, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (perchloric acid titration)

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
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

assay

≥99.5% (perchloric acid titration)

impurities

≤0.001% total nitrogen (N)

pH

7.0-8.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤5 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤40 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Pb: ≤2 mg/kg
Zn: ≤5 mg/kg

Quality Level

200

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Application

Potassium sodium tartrate tetrahydrate is a double salt of tartaric acid that can be used to prevent the precipitation in alkaline medium. It can also be used as a reagent in the determination of nitrilase activity.

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
BCCP0942
BCCN6409
BCCN0974
BCCM1138
BCCL6590

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Effects of Commercial Nitrilase Hydrolysis on Acrylic Fabrics
Kim H, et al.
Textile Research Journal, 18, 889-896 (2016)
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
Ghina Ali et al.
Biotechnology progress, 31(4), 883-889 (2015-04-29)
The immobilization of pullulanase from Klebsiella pneumoniae by grafting was investigated. Pullulanase was linked after activation of alginate via a covalent bond between the amine groups of the enzyme and the carboxylic acid groups of alginate. The immobilization yield was
Catarina M S S Neves et al.
Physical chemistry chemical physics : PCCP, 17(47), 32044-32052 (2015-11-18)
Due to scarce available experimental data, as well as due to the absence of predictive models, the influence of salts on the solubility of ionic liquids (ILs) in water is still poorly understood. To this end, this work addresses the
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