128465

Glyoxal solution

40 wt. % in H₂O

• Synonym(s): Ethanedial, Oxalaldehyde
• Linear Formula: OHCCHO
• CAS Number: 107-22-2
• Molecular Weight: 58.04
• Beilstein: 1732463
• MDL number: MFCD00006957
• UNSPSC Code: 12352114
• PubChem Substance ID: 57647035
• NACRES: NA.21

Properties

• vapor density: >1 (vs air)
• Quality Level: 200
• vapor pressure: 18 mmHg ( 20 °C)
• form: liquid
• autoignition temp.: 545 °F
• concentration: 40 wt. % in H₂O
• refractive index: n20/D 1.4087
• solubility: water: soluble(lit.)
• density: 1.265 g/mL at 25 °C
• SMILES string: [H]C(=O)C([H])=O
• InChI: 1S/C2H2O2/c3-1-2-4/h1-2H
• InChI key: LEQAOMBKQFMDFZ-UHFFFAOYSA-N

Description

General description

The product is 40wt.% solution of glyoxal in water. Glyoxal is a linear aliphatic dialdehyde containing two aldehyde groups. It participates in the synthesis of glyoxylic acid. It is highly reactive in nature. It can be prepared by oxidizing ethanol or acetaldehyde with nitric acid. It is widely employed in textile and paper industry.

Application

Glyoxal solution has been used as a crosslinking agent during the synthesis of DNA-containing nanoparticles in a study. It has been used as derivatizing reagent, in the precolumn fluorescence derivatization of N-terminal tryptophan containing peptides which can be separated via high performance liquid chromatography. It may also be used in the synthesis of glyoxal bis(4-phenyl-3-thiosemicarbazones)solution, which can be used in the spectrophotometric determination of palladium in catalysts.

Other Notes

This form of glyoxal is composed of 3 moles of glyoxal and 2 moles of water in a relatively stable configuration.

Caution

May precipitate on storage; redissolve at 50-60 °C.

Safety Information

• Pictograms: GHS08,GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H314,H317,H335,H341
• Precautionary Statements: P202 - P261 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Muta. 2 - Skin Corr. 1 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves