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1.00804 Supelco

L(+)-Tartaric acid

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Synonym: 2,3-Dihydroxybutanedioic acid, L(+)-Tartaric acid

  • CAS Number 87-69-4

  • Linear Formula HOOCCH(OH)CH(OH)COOH

  • Molecular Weight 150.09

  •  MDL number MFCD00064207

  •  EC Index Number 201-766-0

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Properties

Quality Level   300
grade   ACS reagent
Agency/Method   reag. ISO
  reag. Ph. Eur.
vapor pressure   <5 Pa ( 20 °C)
assay   ≥99.5-101.0% dry basis (alkalimetric)
form   solid
autoignition temp.   425 °C
pH   1.6 (25 °C, 100 g/L in H2O)
mp   168-170 °C
transition temp   flash point 210 °C
solubility   water: 1390 g/L at 20 °C
density   1.76 g/cm3 at 20 °C
bulk density   1000 kg/m3
cation traces   Ca: ≤20 ppm
  Cu: ≤5 ppm
  Fe: ≤5 ppm
  Pb: ≤5 ppm
  heavy metals (as Pb): ≤5 ppm
InChI   1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)
InChI key   FEWJPZIEWOKRBE-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

Linkage

Replaces: TX0010-1; TX0010

Analysis Note

Assay (alkalimetric): ≥ 99.5 %
Assay (alkalimetric, calculated on dried substance): 99.5 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 50 ppm
Spec. rotation [α²0/D (20 %; water calculated on dried substance): 12.0 - 12.8 °
Chloride (Cl): ≤ 5 ppm
Phosphate (PO₄): ≤ 10 ppm
Sulfate (SO₄): ≤ 50 ppm
Heavy metals (as Pb): ≤ 5 ppm
Total sulfur (as SO₄): ≤ 20 ppm
Ca (Calcium): ≤ 20 ppm
Cu (Copper): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
Pb (Lead): ≤ 5 ppm
Oxalate (C₂O₄): passes test
Oxalic acid: ≤ 350 ppm
Sulfated ash: ≤ 100 ppm
Loss on Drying (105°C): ≤ 0.2 %
Corresponds to ACS,ISO,Reag. Ph Eur

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EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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