289981

Sodium hydrogentartrate

98%

• Synonym(s): L(+)-Tartaric acid monosodium salt, Sodium bitartrate, Tartaric acid monosodium salt
• Linear Formula: NaO₂CCH(OH)CH(OH)CO₂H
• CAS Number: 526-94-3
• Molecular Weight: 172.07
• Beilstein/REAXYS Number: 6099125
• EC Number: 208-400-9
• MDL number: MFCD00065393
• UNSPSC Code: 51113400
• PubChem Substance ID: 329753305
• NACRES: NA.22

Properties

• 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

Description

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.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)