L-(+)-Tartaric acid

5.18 (vs air)

200

puriss.

99.7-100.5% (calc. to the dried substance)

powder

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

797 °F

meets analytical specification of Ph. Eur., NF

organic volatile impurities, complies (GC), residual solvents, complies, ≤0.001% heavy metals (as Pb)

≤0.05% (as SO₄)

≤0.2% loss on drying, 105 °C

168-170 °C, 170-172 °C (lit.)

water: soluble 150 g/L at 20 °C

chloride (Cl^-): ≤100 mg/kg, oxalate (C₂O₄^2-): in accordance, oxalate (as oxalic acid): ≤100 mg/kg, sulfate (SO₄^2-): ≤100 mg/kg

As: ≤2 mg/kg, Ca: ≤200 mg/kg, Cu: ≤10 mg/kg, Hg: ≤1 mg/kg, Pb: ≤2 mg/kg, Zn: ≤10 mg/kg

complies for appearance of solution

pharmaceutical (small molecule)

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

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

FEWJPZIEWOKRBE-JCYAYHJZSA-N