Glyoxal #CAS107-22-2
CAS Number:107-22-2
Chemical Formula:C2H2O2
Synonyms:
glyoxylaldehyde
1,2-ethanedione
Protectol GL 40
Appearance:Clear colorless to Yellow
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Glyoxal #CAS107-22-2
Glyoxal is an organic compound with the chemical formula OCHCHO,consisiting of two aldehyde groups linked by -C=O-H.It is the simplest dialdehyde and is a yellow liquid at room temperature .
Industrially,glyoxal can be prepared by the gas-phase oxidation of ethylene glycol under silver or copper catalysis,or by the oxidation of acetaldehyde with nitric acid solution.In the laboratory,glyoxal is prepared by the oxidation of acetaldehyde with selenite.Anhydrous glyoxal can be prepared by heating a solid hydrate with phosphorus pentoxide.
Application of Glyoxal
ermanent-press fabrics;dimensional stabilization of rayon and other fibers.Insolubilizing agent for compounds containing polyhydroxyl groups
(polyvinyl alcohol,starch,and celluosic materials);insolubilizing of proteins(casein,gelatin,and animal glue);embalming fluids;leather tanning;paper
coatings with hydroxyethylcellulose;reducing agent in dyeing textiles.
Glyoxal is used to prepare 4,5-dihydroxy-2-imidazodinone by condensation with urea.It finds application in leather tanning process,textile finishes and
paper coatings.It is an important building block in the synthesis of imidazoles.It acts as a solubilizer and cross-linking agent in poymer chemistry.
Further, it is used as a fixative for histology to preserve cells in order to examine under a microscope.
| Glyoxal Chemical Properties |
| Melting point | -14 °C |
| Boiling point | 104 °C |
| density | 1.265 g/mL at 25 °C |
| vapor density | >1 (vs air) |
| vapor pressure | 18 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | 104°C |
| storage temp. | 2-8°C |
| solubility | water: soluble(lit.) |
| form | Liquid |
| color | Clear colorless to yellow |
| Odor | yel. crystals or lt. yel. liq., mild odor |
| PH | 2-3 (20°C in H2O) |
| Water Solubility | miscible |
| Specific Heat Capacity | Cp(gas): 1.04 J/(g·K), at 25℃ |
| Merck | 14,4509 |
| BRN | 1732463 |
| Henry's Law Constant | 4.1×103 mol/(m3Pa) at 25℃, Burkholder et al. (2019) |
| Exposure limits | ACGIH: TWA 0.1 mg/m3 |
| Stability: | Stability Combustible. Incompatible with strong oxidizing agents. Strong reducing agent. May polyermize exothermically. Incompatible with air, water, oxygen, peroxides, amides, amines, hydroxy-containing materials, nitric acid, aldehydes. Corrodes many metals. |
| Cosmetics Ingredients Functions | ANTIMICROBIAL PERFUMING |
| Cosmetic Ingredient Review (CIR) | Glyoxal (107-22-2) |
| InChI | 1S/C2H2O2/c3-1-2-4/h1-2H |
| InChIKey | LEQAOMBKQFMDFZ-UHFFFAOYSA-N |
| SMILES | [H]C(=O)C([H])=O |
| LogP | -1.15 at 20℃ |
| CAS DataBase Reference | 107-22-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethanedial(107-22-2) |
| EPA Substance Registry System | Glyoxal (107-22-2) |
| Safety Information |
| Hazard Codes | Xn |
| Risk Statements | 20-36/38-43-68 |
| Safety Statements | 36/37 |
| RIDADR | UN 1760 |
| WGK Germany | 1 |
| RTECS | MD2700000 |
| Autoignition Temperature | 545 °F |
| TSCA | TSCA listed |
| HS Code | 29121900 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Eye Dam. 1 Muta. 2 Skin Corr. 1 Skin Sens. 1 STOT SE 3 |
| Hazardous Substances Data | 107-22-2(Hazardous Substances Data) |
| Toxicity | LD50 in rats, guinea pigs (mg/kg): 2020, 760 orally (Smyth) |
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