L-(+)-Tartaric acid

agency

Ph. Eur.
USP/NF
reag. ISO

Quality Level

200

vapor density

5.18 (vs air)

grade

puriss. p.a.

assay

99.5-101.0% (calc. to the dried substance)

form

powder or crystals

optical activity

[α]20/D +12.0 to +12.8°, c = 20% in H₂O

autoignition temp.

797 °F

impurities

≤0.0005% heavy metals (as Pb)

ign. residue

≤0.1% (as SO₄)

loss

≤0.1% loss on drying, 105 °C

mp

170-172 °C (lit.)

anion traces

chloride (Cl^-): ≤5 mg/kg
phosphate (PO₄^3-): ≤10 mg/kg
sulfate (SO₄^2-): ≤150 mg/kg

cation traces

Ca: ≤20 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Pb: ≤2 mg/kg
Zn: ≤5 mg/kg

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