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289981

Sigma-Aldrich

Sodium hydrogentartrate

98%

Synonym(s):

L(+)-Tartaric acid monosodium salt, Sodium bitartrate, Tartaric acid monosodium salt

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About This Item

Linear Formula:
NaO2CCH(OH)CH(OH)CO2H
CAS Number:
526-94-3
Molecular Weight:
172.07
Beilstein:
6099125
EC Number:
208-400-9
MDL number:
MFCD00065393
UNSPSC Code:
51113400
PubChem Substance ID:
329753305
NACRES:
NA.22

Quality Level

200

Assay

98%

form

solid

optical activity

[α]20/D +24°, c = 3 in H2O

mp

253 °C (dec.) (lit.)

SMILES string

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

InChI

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

InChI key

NKAAEMMYHLFEFN-ZVGUSBNCSA-M

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General description

Sodium hydrogentartrate is an inorganic salt commonly used in qualitative chemical analysis to detect potassium.

Application

Sodium hydrogentartrate may also be used in the preparation of sodium citrate-sodium tartrate reagent, which can complex with interfering metals during the colorimetric estimation of ammonium ions in soil samples. The modification of supported nickel catalysts with sodium hydrogentartrate leads to enhanced enantiomeric excess (ee) during the hydrogenation of methyl acetoacetate.

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

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Enantio-differentiating hydrogenation of methyl acetoacetate over modified nickel catalysts: effects of nickel dispersion on the enantio-selectivity of catalysts.
Jo D, et al.
Research on Chemical Intermediates, 30(9), 889-901 (2004)
Driver JE
Bentley and Driver's Qualitative Chemical Analysis: A Handbook for Teaching Practice Supervisors., 16-16 (1988)

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