Skip to Content
Merck

1.08087

Potassium sodium tartrate tetrahydrate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Synonym(s):

Potassium sodium tartrate tetrahydrate, Sodium potassium tartrate, Tartaric acid potassium sodium salt

Sign In to View Organizational & Contract Pricing.

Select a Size



About This Item

Empirical Formula (Hill Notation):
C4H4KNaO6 · 4H2O
CAS Number:
Molecular Weight:
282.22
UNSPSC Code:
12352107
EC Index Number:
206-156-8
NACRES:
NA.21
MDL number:
assay:
99.0-102.0% (alkalimetric)
grade:
ACS reagent
form:
solid

Product Name

Potassium sodium tartrate tetrahydrate, for analysis EMSURE® ACS,ISO,Reag. Ph Eur

SMILES string

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

grade

ACS reagent

agency

reag. ISO
reag. Ph. Eur.
suitable for SM 4500 - NH3

product line

EMSURE®

assay

99.0-102.0% (alkalimetric)

form

solid

impurities

≤0.005% Insoluble matter

pH

7.0-8.5 (25 °C, 50 g/L in H2O)

mp

70-80 °C

bulk density

1000 kg/m3

anion traces

chloride (Cl-): ≤0.0005%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.004%
Cu: ≤0.0005%
Fe: ≤0.0005%
NH4+: ≤0.002%
Pb: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

Quality Level

Looking for similar products? Visit Product Comparison Guide

Related Categories

Analysis Note

Assay (alkalimetric): 99.0 - 102.0 %
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water; 25 °C): 7.0 - 8.5
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Ca (Calcium): ≤ 0.004 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.002 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,ISO,Reag. Ph Eur

Other Notes

Replaces: PX1590; PX1590-1; PX1590-2; PX1590-5; PX1590-11;

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Application

Potassium sodium tartrate tetrahydrate can be used as a:
  • Reducing agent in the preparation of monodispersed gold nanoparticles.
  • Key component in the preparation of Fehling′s solution, which is used to distinguish between reducing and non-reducing sugars.
  • Chelating agent to prepare Co-Ni-P/Pd-Al2O3 catalyst through electroless deposition method.

Storage Class

11 - Combustible Solids

wgk

WGK 1


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Protocols

The article describes the sample preparation and photometric determination of silver concentration in water samples using Spectroquant® photometers and test kits.

Related Content

This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service