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251275 Sigma-Aldrich

Citric acid

ACS reagent, ≥99.5%

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Properties

Related Categories ACS Grade Buffers, Acids, Acids & Bases, Analytical/Chromatography, Biochemicals and Reagents,
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)

Description

Packaging

12 kg in fiber drum

5, 100, 500 g in poly bottle

2.5 kg in poly bottle

Application

Citric acid has been used:
• To prepare the 0.25M phosphate citrate buffer for use in enzyme-linked immunosorbent assay.
• In the preparation of citrate-stabilized ceria aqueous sol, which was employed in the synthesis of cerium oxide nanoparticles.
• In the preparation of phosphate citrate buffer for use in a study.
• To prepare citric acid-Na2HPO4-buffered stock solution for use in a study.
• To prepare anticoagulant citrate dextrose solution A (ACD-A).
• To synthesize palladium cuboctahedrons via oxidative etching by hydrogen chloride, which allows controlling of the particle size.

Legal Information

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

Other Notes

Go to Redi-Dri Product Listing 791725

Price and Availability


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Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
WGK Germany 
1
RTECS 
GE7350000

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Articles

Determination of Water Content in Citric acid anhydrous Using Karl Fischer Titration

Group(s): Carboxylic Acids, Cosmetic Products + Compounds, Pharmaceutical Products + Compounds
Keywords: Esterifications, Pharmaceutical, Titrations

MSMLS Online Plate Map

Metabolite descriptors included with the software download upon purchase of the product include: Name, Parent CID, molecular formula, molecular weight, CAS, ChEBI, HMDB ID, PubChem Compound and Subst...
Keywords: Mass spectrometry, Metabolites

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SPE Cartridges (Tubes) - Phase Selection Guide

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Peer-Reviewed Papers
15

References

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