Product Name: Oxalic acid
Synonyms: OXALIC ACID STOCK SOLN,10G/L;OXALIC ACID REAGENT;OXALIC ACID STANDARD;OXALIC ACID;OXALATE ION CHROMATOGRAPHY STANDARD;PH STANDARD SOLUTION OXALATE BUFFER;BETZ 0295;ETHANEDIOIC ACID
CAS: 144-62-7
MF: C2H2O4
MW: 90.03
EINECS: 205-634-3
Product Categories: Intermediates;Water Ttreatment Chemicals;Eluent concentrates for ICAnalytical Standards;Alphabetic;Chromatography/CE Reagents;Ion Chromatography;O;C1 to C5;Carbonyl Compounds;Carboxylic Acids;Acid SolutionsTitration;Complexometric Solutions (IDRANAL);Complexometric Titration (IDRANAL);Analytical Reagents for General Use;O-P, Puriss p.a.;Puriss p.a.;Acid Concentrates;Concentrates (e.g. FIXANAL);Acid Solutions;Titration;Volumetric Solutions;Chelating Agents & Ligand;Aliphatics;Impurities;Intermediates & Fine Chemicals;Pharmaceuticals;Bioactive Small Molecules;Building Blocks;C1 to C5;Carbonyl Compounds;Carboxylic Acids;Cell Biology;Chemical Synthesis;Organic Building Blocks;Pharmaceutical intermediates
Mol File: 144-62-7.mol
Oxalic acid Structure
Oxalic acid Chemical Properties
mp  189.5 °C (dec.)(lit.)
density  0.99 g/mL at 25 °C
vapor density  4.4 (vs air)
vapor pressure  <0.01 mm Hg ( 20 °C)
Fp  101-157°C
Water Solubility  90 g/L (20 ºC)
Sublimation  101-157 ºC
Merck  14,6911
BRN  385686
Stability: Stable, but moisture sensitive. Incompatible with metals.
CAS DataBase Reference 144-62-7(CAS DataBase Reference)
NIST Chemistry Reference Oxalic acid(144-62-7)
EPA Substance Registry System Ethanedioic acid(144-62-7)
Safety Information
Hazard Codes  Xn
Risk Statements  21/22-63-34-41
Safety Statements  24/25-23-36/37/39-27-26-39-37-36-36/37
RIDADR  UN 3261 8/PG 3
WGK Germany  1
RTECS  RO2450000
HazardClass  8
PackingGroup  III
Hazardous Substances Data 144-62-7(Hazardous Substances Data)
MSDS Information
Provider Language
SigmaAldrich English
ACROS English
ALFA English
Oxalic acid Usage And Synthesis
Chemical Properties white crystalline powder
Usage An impurity of oxaliplatin which is a coordination complex that is used in cancer chemotherapy.
General Description Odorless white solid. Sinks and mixes with water.
Air & Water Reactions Water soluble. Hygroscopic
Reactivity Profile Oxalic acid is hygroscopic and sensitive to heat. Oxalic acid may react violently with furfuryl alcohol, silver, sodium, perchlorate, sodium hypochlorite, strong oxidizers, sodium chlorite, acid chlorides, metals and alkali metals. . The heating of mixtures of Oxalic acid and urea has lead to explosions. This is due to the rapid generation of the gases, CO2, CO, and NH3, [Praxis Naturwiss. Chem., 1987, 36(8), 41-42]. Oxalic acid and urea react at high temperatures to form toxic and flammable ammonia and carbon monoxide gasses, and inert CO2 gas [Von Bentzinger, R. et al., Praxis Naturwiss. Chem., 1987, 36(8), 41-42].
Health Hazard As dust or as a solution, can cause severe burns of eyes, skin, or mucous membranes. Ingestion of 5 grams has caused death with symptoms of nausea, shock, collapse, and convulsions coming on rapidly. Repeated or prolonged skin exposure can cause dermatitis and slow-healing ulcers.
Fire Hazard Special Hazards of Combustion Products: Generates poisonous gases
Oxalic acid Preparation Products And Raw materials
Preparation Products Diethyl oxalate-->Oxalyl chloride-->Hydroquinone-->Rosin-->Glyoxylic acid-->alpha-(1-Naphthylmethyl)-2-tetrahydrofuranpropionic acid diethylaminoethyl ester oxalate-->Cobalt oxide -->Ammonium metavanadate-->Filth remover-->Lubricant-->ALPHAZURINE A-->Lincomycin hydrochloride monohydrate-->Dimethyl oxalate-->Oxytetracycline-->3-METHYL-1H-PYRAZOLO[3,4-C]PYRIDAZINE-4,5-DIOL-->Scandium oxide-->7-(TRIFLUOROMETHYL)QUINOLINE-->Disodium oxalate-->Ethanedioic acid diammonium salt-->Ferric ammonium oxalate-->Barium oxalate-->Dibutyl oxalate-->oxalic acid, potassium salt -->Potassium titanium oxalate-->(+)-Griseofulvin-->NICKEL OXALATE DIHYDRATE-->Potassium binoxalate
Raw materials Sodium hydroxide-->Sulfuric acid -->Nitric acid-->Ethylene glycol-->CARBON MONOXIDE-->Starch-->Sodium formate-->METALLURGICAL COKE-->NITRIC OXIDE-->PALLADIUM-CATALYSTS-->Oxalic acid dihydrate-->Disodium oxalate-->Calcium oxalate-->Dibutyl oxalate-->LEAD CARBONATE