27109
Citric acid
meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)
About This Item
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Quality Level
Assay
99.5-100.5% (based on anhydrous substance)
form
grit
quality
anhydrous
meets analytical specification of Ph. Eur., BP, USP, E330
expl. lim.
8 %, 65 °F
impurities
residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.5% water (Karl Fischer)
ign. residue
≤0.05% (as SO4)
pKa
(1) 3.13, (2) 4.76, (3) 6.4
mp
153-159 °C (lit.)
solubility
water: 383 g/L at 25 °C
anion traces
chloride (Cl-): ≤50 ppm
oxalate (as oxalic acid): ≤100 ppm
sulfate (SO42-): ≤100 ppm
cation traces
As: ≤1 ppm
Ca: ≤200 ppm
Cu: ≤10 ppm
Fe: ≤10 ppm
Hg: ≤1 ppm
Pb: ≤0.5 ppm
Zn: ≤10 ppm
suitability
complies for appearance of solution
complies for reaction against H2SO4
SMILES string
OC(=O)CC(O)(CC(O)=O)C(O)=O
InChI
1S/C6H8O7/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)
InChI key
KRKNYBCHXYNGOX-UHFFFAOYSA-N
Gene Information
human ... SRC(6714)
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Application
Biochem/physiol Actions
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