Skip to Content
Merck
All Photos(1)

Documents

60413

Sigma-Aldrich

Potassium sodium tartrate tetrahydrate

BioUltra, ≥99.5% (NT)

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
KOCOCH(OH)CH(OH)COONa · 4H2O
CAS Number:
6381-59-5
Molecular Weight:
282.22
Beilstein:
6113568
EC Number:
206-156-8
MDL number:
MFCD00150989
UNSPSC Code:
12352100
PubChem Substance ID:
57651761
NACRES:
NA.26

product line

BioUltra

Assay

≥99.5% (NT)

form

solid

optical activity

[α]20/D +22±1°, c = 1% in H2O

impurities

insoluble matter, passes filter test
≤0.002% total nitrogen (N)

pH

7.0-8.5 (25 °C, 1 M in H2O)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

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

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.026
λ: 280 nm Amax: 0.022

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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

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
Kevser Sözgen Başkan et al.
Talanta, 147, 162-168 (2015-11-26)
As the concentration of reducing sugars (RS) is controlled by European legislation for certain specific food and beverages, a simple and sensitive spectrophotometric method for the determination of RS in various food products is proposed. The method is based on
W F Tonnis et al.
Molecular pharmaceutics, 12(3), 684-694 (2015-01-13)
Protein-based biopharmaceuticals are generally produced as aqueous solutions and stored refrigerated to obtain sufficient shelf life. Alternatively, proteins may be freeze-dried in the presence of sugars to allow storage stability at ambient conditions for prolonged periods. However, to act as
Liliana Iauk et al.
Journal of enzyme inhibition and medicinal chemistry, 30(3), 360-365 (2014-07-18)
The aim of this study was to examine the bioactivity of the methanol fraction (MF) and n-hexane fraction (HF) of Thymus capitatus leaves in relation to their constituents analysed by gas chromatography and gas chromatography-mass spectrometry. The effects of T.

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