251275 Sigma-Aldrich

Citric acid

ACS reagent, ≥99.5%


Related Categories ACS Grade, ACS Grade Buffers, Acids, Acids & Bases, Analytical/Chromatography,
grade   ACS reagent
assay   ≥99.5%
expl. lim.   8 %, 65 °F
impurities   Substances carbonizable by hot sulfuric acid, passes test
ign. residue   ≤0.02%
pKa    (1) 3.13, (2) 4.76, (3) 6.4
mp   153-159 °C(lit.)
anion traces   chloride (Cl-): ≤0.001%
  oxalate (C2O42-): passes test (limit about 0.003%)
  phosphate (PO43-): ≤0.001%
  sulfate (SO42-): ≤0.002%
cation traces   Fe: ≤3 ppm
  Pb: ≤2 ppm
Gene Information   human ... SRC(6714)



100, 500 g in poly bottle

12 kg in fiber drum

2.5 kg in poly bottle

5 g in glass bottle

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