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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

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About This Item

Empirical Formula (Hill Notation):
C4H4KNaO6 · 4H2O
CAS Number:
6381-59-5
Molecular Weight:
282.22
UNSPSC Code:
12352107
EC Index Number:
206-156-8
NACRES:
NA.21
MDL number:
MFCD00150989
Assay:
99.0-102.0% (alkalimetric)
Grade:
ACS reagent
Form:
solid
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grade

ACS reagent

Quality Level

300

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: ≤0.0005% ((ACS) )

storage temp.

2-30°C

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

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.

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 (ACS) ≤ 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

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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’.

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