Potassium sodium tartrate tetrahydrate

SIAL/217255 - ACS reagent, 99%

Synonym: L(+)-Tartaric acid potassium Sodium salt; Rochelle salt; Seignette salt

CAS Number: 6381-59-5
Empirical Formula (Hill Notation): C₄H₄KNaO₆ · 4H₂O
Molecular Weight: 282.22
EC Number: 206-156-8
MDL Number: MFCD00150989
Linear Formula: KOCOCH(OH)CH(OH)COONa · 4H₂O
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-217255-100G	100 g	$58.50 1/EA	Add To Favorites
45-217255-500G	500 g	$123.00 1/EA	Add To Favorites
45-217255-2.5KG	2.5 kg	$304.00 1/EA	Add To Favorites
45-217255-12KG	12 kg	$919.00 1/EA	Add To Favorites

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This image depicts SKU: 217255-100G

Properties
Descriptions
Safety Info.
Basic Data

agency	suitable for SM 4500 - NH3
anion traces	chloride (Cl^-): ≤0.001%
	phosphate (PO₄^3-): ≤0.002%
	sulfate (SO₄^2-): ≤0.005%
assay	99%
	99.0-102.0% (ACS specification)
cation traces	Ca: ≤0.005%
	Fe: ≤0.001%
	heavy metals: ≤5 ppm (by ICP)
	NH₄⁺: ≤0.002%
form	powder or crystals
grade	ACS reagent
impurities	≤0.005% insolubles
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);;;41H2/q;2+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
InChI key	VZOPRCCTKLAGPN-ZFJVMAEJSA-L
pH	6.0-8.5
Quality Level	200
SMILES string	O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O

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.
General description:	Potassium sodium tartrate tetrahydrate is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient.
Packaging:	100, 500 g in poly bottle
Packaging:	12 kg in fiber drum
Packaging:	2.5 kg in poly bottle

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	99%; 99.0-102.0% (ACS specification)
UNSPSC	12352100

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