Potassium sodium tartrate tetrahydrate

SIAL/32312 - puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (perchloric acid titration)

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


45-32312-250G	250 g	$53.30 1/EA	Add To Favorites
45-32312-500G	500 g	$101.00 1/EA	Add To Favorites
45-32312-1KG	1 kg	$145.00 1/EA	Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

agency	reag. ISO
	reag. Ph. Eur.
	USP/NF
anion traces	chloride (Cl^-): ≤5 mg/kg
	phosphate (PO₄^3-): ≤10 mg/kg
	sulfate (SO₄^2-): ≤50 mg/kg
assay	≥99.5% (perchloric acid titration)
cation traces	Ca: ≤40 mg/kg
	Cu: ≤5 mg/kg
	Fe: ≤5 mg/kg
	Pb: ≤2 mg/kg
	Zn: ≤5 mg/kg
grade	ACS reagent
	puriss. p.a.
impurities	≤0.001% total nitrogen (N)
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	7.0-8.5 (20 °C, 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 is a double salt of tartaric acid that can be used to prevent the precipitation in alkaline medium. It can also be used as a reagent in the determination of nitrilase activity.

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

Purity	≥99.5% (perchloric acid titration)
UNSPSC	12352100

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