251275-500G

Application

Citric acid has been used to prepare:Phosphate citrate buffer for use in enzyme-linked immunosorbent assay.Citrate-stabilized ceria aqueous sol, which was employed in the synthesis of cerium oxide nanoparticles.Citric acid-Na₂HPO₄-buffered stock solution for use in the determination of fecal urease activity. Anticoagulant citrate dextrose solution A (ACD-A), which is employed during the isolation of blood-derived endothelial progenitor cells.Citric acid has also been used:In a novel process which allows controlling of the particle size during the synthesis of palladium cuboctahedrons. To prepare citric acid-derived carbon nanodots (CNDs) by bottom-up carbonization method.As a bi-component chelating agent for the synthesis of Li4Ti₅O₁₂ (lithium titanate oxide) by a novel sol–gel method.

General description

Citric acid is an organic acid commonly used as a chelating agent, a buffering agent, for pH adjustment and derivatization.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Other Notes

Go to Redi-Dri^™ Product Listing 791725

Packaging

12 kg in fiber drum

1, 2.5 kg in poly bottle

5, 100, 500 g in poly bottle

anion traces	oxalate (C₂O₄^2-): passes test (limit about 0.003%), sulfate (SO₄^2-): ≤0.002%, phosphate (PO₄^3-): ≤0.001%, chloride (Cl^-): ≤0.001%
assay	≥99.5%
cation traces	Pb: ≤2 ppm, Fe: ≤3 ppm
expl. lim.	8 %, 65 °F
form	crystals
Gene Information	human ... SRC(6714)
grade	ACS reagent
ign. residue	≤0.02%
impurities	Substances carbonizable by hot sulfuric acid, passes test
InChI key	KRKNYBCHXYNGOX-UHFFFAOYSA-N
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)
mp	153-159 °C (lit.)
pKa	(1) 3.13, (2) 4.76, (3) 6.4
Quality Level	200
SMILES string	OC(=O)CC(O)(CC(O)=O)C(O)=O