L-(+)-Tartaric acid

grade

ACS reagent

Quality Level

200

vapor density

5.18 (vs air)

Assay

≥99.5%

form

crystalline powder
crystals

optical activity

[α]20/D +12.4° c = 20 in H₂O

optical purity

ee: 99% (GLC)

autoignition temp.

797 °F

impurities

≤0.002% S compounds
≤0.005% insolubles

ign. residue

≤0.02%

mp

170-172 °C (lit.)

anion traces

chloride (Cl^–): ≤0.001%
oxalate (C₂O₄^2-): passes test
phosphate (PO₄^3-): ≤0.001%

cation traces

Fe: ≤5 ppm
heavy metals (as Pb): ≤5 ppm

SMILES string

O[C@H]([C@@H](O)C(O)=O)C(O)=O

InChI

1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2 5-6H (H 7 8)(H 9 10)/t1- 2-/m1/s1

InChI key

FEWJPZIEWOKRBE-JCYAYHJZSA-N