Merck
  • S2377
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S2377

Sigma-Aldrich

Potassium sodium tartrate tetrahydrate

ReagentPlus®, ≥99%

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

Quality Level

product line

ReagentPlus®

Assay

≥99%

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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This Item
255086041332312
assay

≥99%

assay

99.0-101.0% (calc. on H2O free substance)

assay

≥99.5% (NT)

assay

≥99.5% (perchloric acid titration)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

product line

ReagentPlus®

product line

-

product line

BioUltra

product line

-

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 3,5-dinitrosalicylic acid solution used in the determination of the reducing sugar.

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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