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Potassium tartrate dibasic hemihydrate

Name: Potassium tartrate dibasic hemihydrate
Brand: SIAL
Price: 122 USD
Availability: InStock

99-102% (perchloric acid titration), solid, meets analytical specification of DAC, E336

Synonym(s):

L-(+)-Tartaric acid dipotassium salt, Dipotassium tartrate hemihydrate

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Pack Size	SKU	Availability	Price
500 g		Available to ship TODAYfromMILWAUKEE	$122.00

About This Item

Linear Formula:

KOOC(CHOH)₂COOK · 0.5H₂O

CAS Number:

6100-19-2

Molecular Weight:

235.28

NACRES:

NA.21

PubChem Substance ID:

57648126

UNSPSC Code:

12352100

EC Number:

213-067-8

MDL number:

MFCD00150136

Beilstein/REAXYS Number:

6121656

Assay:

99-102% (perchloric acid titration)

Form:

solid

$122.00

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Properties

Product Name

Potassium tartrate dibasic hemihydrate, meets analytical specification of DAC, E336, 99-102% (perchloric acid titration)

Quality Segment

200

assay

99-102% (perchloric acid titration)

form

solid

quality

meets analytical specification of DAC, E336

impurities

≤0.001% ammonium (NH₄), ≤0.001% heavy metals (as Pb)

loss

≤4% loss on drying, 150 °C, 4 h

pH

7-9 (20 °C, 0.1%)

anion traces

chloride (Cl^-): ≤500 mg/kg, oxalate (as oxalic acid): ≤100 mg/kg, sulfate (SO₄^2-): ≤1000 mg/kg

cation traces

As: ≤3 mg/kg, Ca: ≤100 mg/kg, Cu: ≤10 mg/kg, Fe: ≤20 mg/kg, Hg: ≤1 mg/kg, Pb: ≤5 mg/kg, Zn: ≤10 mg/kg

SMILES string

O.[K+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O

InChI

1S/C4H6O6.2K.H2O/c5-1(3(7)8)2(6)4(9)10;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;1H2/q;2*+1;/p-2/t1-,2-;;;/m1.../s1

InChI key

BUCMCXRUIRJPKS-QXMMYYGRSA-L

Description

General description

Potassium tartrate dibasic hemihydrate is the dipotassium salt of tartaric acid.

Application

Potassium tartrate dibasic hemihydrate (Potassium L-tartrate dibasic hemihydrate) may be used in the hydrothermal synthesis of 4 metal-organic coordination polymers:

{[Cd₃(C₄H₄O₆)₃(H₂O)].H₂O}_n
{Cd₃(C₄H₃O₆)₂(H₂O)₂].5.5H₂O}_n
{[Cd₂(C₄H₄O₆)₂(H₂O)].3H₂O}_n
[Cd(C₄H₄O₆)]_n

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This Item	32312	25506	71995
Sigma-Aldrich 25510 Potassium tartrate dibasic hemihydrate	Sigma-Aldrich 32312 Potassium sodium tartrate tetrahydrate	Sigma-Aldrich 25506 Potassium L-tartrate monobasic	Sigma-Aldrich 71995 Sodium tartrate dibasic dihydrate
form solid	form -	form powder	form solid
assay 99-102% (perchloric acid titration)	assay ≥99.5% (perchloric acid titration)	assay 99.5-100.5% (related to dried substance)	assay ≥98.0% (NT)
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 200
impurities ≤0.001% ammonium (NH₄), ≤0.001% heavy metals (as Pb)	impurities ≤0.001% total nitrogen (N)	impurities residual solvents, in accordance, ≤0.001% heavy metals (as Pb), ≤0.05% oxalic acid	impurities -
anion traces chloride (Cl^-): ≤500 mg/kg, sulfate (SO₄^2-): ≤1000 mg/kg, oxalate (as oxalic acid): ≤100 mg/kg	anion traces chloride (Cl^-): ≤5 mg/kg, phosphate (PO₄^3-): ≤10 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg	anion traces chloride (Cl^-): ≤500 mg/kg, sulfate (SO₄^2-): ≤100 mg/kg	anion traces chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg
pH 7-9 (20 °C, 0.1%)	pH 7.0-8.5 (20 °C, 5%)	pH -	pH -