L(+)-TARTARIC ACID FOR ANALYSIS EMSURE

Code: 1008040250 D2-231

Analysis Note

Assay (alkalimetric): ≥ 99.5 %Assay (alkalimetric, calculated on dried substance): 99.5 - 101.0 %Identity: passes testAppearance of solution: passes testI...


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Analysis Note

Assay (alkalimetric): ≥ 99.5 %Assay (alkalimetric, calculated on dried substance): 99.5 - 101.0 %Identity: passes testAppearance of solution: passes testInsoluble matter: ≤ 50 ppmSpec. rotation [α20/D (20 %; water calculated on dried substance): 12.0 - 12.8 °Chloride (Cl): ≤ 5 ppmPhosphate (PO4): ≤ 10 ppmSulfate (SO4): ≤ 50 ppmHeavy metals (as Pb): ≤ 5 ppmTotal sulfur (as SO4): ≤ 20 ppmCa (Calcium): ≤ 20 ppmCu (Copper): ≤ 5 ppmFe (Iron): ≤ 5 ppmPb (Lead): ≤ 5 ppmOxalate (C2O4): passes testOxalic acid: ≤ 350 ppmSulfated ash: ≤ 100 ppmLoss on Drying (105°C): ≤ 0.2 %Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

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

Linkage

Replaces: TX0010-1; TX0010

Packaging

50 kg in Fibre carton

1, 5 kg in Plastic bottle

250 g in Plastic bottle

agencyreag. ISO, reag. Ph. Eur.
assay≥99.5-101.0% dry basis (alkalimetric)
autoignition temp.425 °C
bulk density1000 kg/m3
cation tracesCu: ≤5 ppm, Pb: ≤5 ppm, Fe: ≤5 ppm, heavy metals (as Pb): ≤5 ppm, Ca: ≤20 ppm
density1.76 g/cm3 at 20 °C
formsolid
gradeACS reagent
impurities≤50 ppm Sulfate (SO4), ≤100 ppm Sulfated ash, ≤5 ppm Chloride (Cl), ≤350 ppm Oxalic acid, ≤50 ppm Insoluble matter, ≤10 ppm Phosphate (PO4), ≤20 ppm Total sulfur (as SO4)
InChI keyFEWJPZIEWOKRBE-UHFFFAOYSA-N
InChI1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)
loss≤ 0.2% loss on drying, 105°C
mp168-170 °C
pH1.6 (25 °C, 100 g/L in H2O)
product lineEMSURE®
Quality Level300
solubilitywater: 1390 g/L at 20 °C
storage temp.2-30°C
transition tempflash point 210 °C
vapor pressure﹤5 Pa ( 20 °C)
Cas Number87-69-4
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