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ACS reagent, 99%
Synonym(s):
L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
CAT Number: BC-217255
CAS Number: 6381-59-5
About This Item
Linear Formula:
KOCOCH(OH)CH(OH)COONa · 4H2O
Molecular Weight: 282.22
EC Number:
206-156-8
MDL number:
MFCD00150989
Grade:
ACS reagent
Form:
powder or crystals

Properties

grade

ACS reagent

Quality Level

200

Agency

suitable for SM 4500 – NH3

Assay

99%
99.0-102.0% (ACS specification)

form

powder or crystals

impurities

≤0.005% insolubles

pH

6.0-8.5

anion traces

chloride (Cl–): ≤0.001%
phosphate (PO43-): ≤0.002%
sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.005%
Fe: ≤0.001%
NH4+: ≤0.002%
heavy metals: ≤5 ppm (by ICP)

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

Category:

Description

Description

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 Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.It may be used as a constituent to prepare DNS (3,5- dinitrosalicylic acid) reagent and Fehling′s solution B, which are used in the determination of reducing sugar.

Safety Information

Storage Class Code

11 – Combustible Solids

WGK

WGK 1

Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves

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