CITRIC ACID MONOHYDRATE FOR ANALYSIS

Code: 1002441000 D2-231

Analysis Note

Assay (acidimetric, calc. on anhydrous substance): 99.5 - 100.5 %Identity (IR-spectrum): passes testAppearance: white to almost white or colorless crystalsAppea...


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Analysis Note

Assay (acidimetric, calc. on anhydrous substance): 99.5 - 100.5 %Identity (IR-spectrum): passes testAppearance: white to almost white or colorless crystalsAppearance of solution (200 g/l; water): clear (≤ 3 NTU) and not more intense in color than reference solution Y7, BY7 or GY7In water insoluble matter: ≤ 50 ppmChloride (Cl): ≤ 5 ppmPhosphate (PO4): ≤ 10 ppmSulphate (SO4): ≤ 20 ppmHeavy metals (as Pb): ≤ 5 ppmAl (Aluminium): ≤ 0.2 ppmAs (Arsenic): ≤ 1 ppmHg (Mercury): ≤ 1 ppmCu (Copper): ≤ 5 ppmFe (Iron): ≤ 3 ppmFe (Iron, acc. to Reag. Ph Eur.): suitable to use in the limit test for ironPb (Lead): ≤ 0.5 ppmOxalates (as C2H2O4): ≤ 50 ppmReadily carbonisable substance: passes testSulfated ash: ≤ 200 ppmWater (according to Karl Fischer): 7.5 - 8.8 %Corresponds to ACS, ISO 6353/2, Reag. Ph. Eur.

Legal Information

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

Linkage

Replaces: CX1725-1; CX1725-3; CX1725

Packaging

1, 5 kg in Plastic bottle

12 kg in Bucket, plastic

500 g in Plastic bottle

25 kg in Fibre carton

agencyreag. ISO, reag. Ph. Eur.
anion traceschloride (Cl-): ≤5 ppm, sulfate (SO42-): ≤20 ppm, oxalate (as oxalic acid): ≤50 ppm, phosphate (PO43-): ≤10 ppm
assay99.5-100.5% anhydrous basis (acidimetric)
bulk density800‑1000 kg/m3
cation tracesCu: ≤5 ppm, As: ≤1 ppm, Al: ≤0.2 ppm, Pb: ≤0.5 ppm, Hg: ≤1 ppm, heavy metals (as Pb): ≤5 ppm, Fe: ≤3 ppm
colorclear, white to almost white
compositionWater, 7.5-8.8% Karl Fischer
density1.54 g/cm3 at 20 °C
formsolid
gradeACS reagent
impurities≤200 ppm Sulfated ash, ≤50 ppm In water insoluble matter
InChI keyYASYEJJMZJALEJ-UHFFFAOYSA-N
InChI1S/C6H8O7.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);1H2
mp135-152 °C
pH1.85 (25 °C, 50 g/L in H2O)
pKa (1) 3.13, (2) 4.76, (3) 6.4
potency3000 mg/kg LD50, oral (Rat)
product lineEMSURE®
Quality Level300
SMILES stringOC(CC(O)(C(O)=O)CC(O)=O)=O.O
solubility880 g/L
storage temp.2-30°C
transition tempflash point 173.9 °C
vapor pressure﹤1 Pa ( 25 °C)
Cas Number5949-29-1
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