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Glyoxal

CAS No.107-22-2
Chemical Name:Glyoxal
CBNumber:CB1280241
Molecular Formula:C2H2O2
Formula Weight:58.04
MOL File:107-22-2.mol

Glyoxal Property

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 n20/D 1.409
Flash point 104°C
storage temp. 2-8°C
solubility water: soluble(lit.)
form Liquid
color Clear colorless to yellow
PH 2-3 (20°C in H2O)
Odor yel. crystals or lt. yel. liq., mild odor
Water Solubility miscible
Merck 14,4509
BRN 1732463
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.
InChIKey LEQAOMBKQFMDFZ-UHFFFAOYSA-N
LogP -1.15 at 20℃
Indirect Additives used in Food Contact Substances GLYOXAL
FDA 21 CFR 175.105; 176.170; 176.180; 177.2280
CAS DataBase Reference 107-22-2(CAS DataBase Reference)
EWG's Food Scores 6-10
FDA UNII 50NP6JJ975
NIST Chemistry Reference Ethanedial(107-22-2)
EPA Substance Registry System Glyoxal (107-22-2)
UNSPSC Code 41116105
NACRES NA.52

Safety

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 :Yes
HS Code :29121900
Hazardous Substances Data :107-22-2(Hazardous Substances Data)
Toxicity :LD50 in rats, guinea pigs (mg/kg): 2020, 760 orally (Smyth)
発がん性評価について :ACGIH A4

NFPA 704:

	0
2		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H317-H319-H332-H341
Precautionary statements P201-P280-P302+P352-P304+P340+P312-P305+P351+P338-P308+P313

Glyoxal Price More Price(14)

Brand: Sigma-Aldrich(India)
Product number: 50649
Product name : Glyoxal solution
Purity: BioReagent, for molecular biology, ~40% in H2O (~8.8 M)
Packaging: 25ML
Price: ₹4254.23
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 128465
Product name : Glyoxal solution
Purity: 40?wt. % in H2O
Packaging: 5G
Price: ₹4459.9
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 50649
Product name : Glyoxal solution
Purity: BioReagent, for molecular biology, ~40% in H2O (~8.8 M)
Packaging: 100ML
Price: ₹11258
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 128465
Product name : Glyoxal solution
Purity: 40?wt. % in H2O
Packaging: 100G
Price: ₹5434.15
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 128465
Product name : Glyoxal solution
Purity: 40?wt. % in H2O
Packaging: 1KG
Price: ₹6440.88
Updated: 2022/06/14
Buy: Buy

Glyoxal Chemical Properties,Usage,Production

Chemical Properties colourless or light yellow liquid
Uses ermanent-press fabrics; dimensional stabilization of rayon and other fibers. Insolubilizing agent for compounds containing polyhydroxyl groups (polyvinyl alcohol, starch, and cellulosic materials); insolubilizing of proteins (casein, gelatin, and animal glue); embalming fluids; leather tanning; paper coatings with hydroxyethylcellulose; reducing agent in dyeing textiles.
Uses Glyoxal is used to prepare 4,5-dihydroxy-2-imidazolidinone 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 polymer chemistry. Further, it is used as a fixative for histology to preserve cells in order to examine under a microscope.
Uses Glyoxal is used in the production of textilesand glues and in organic synthesis.
Definition ChEBI: Glyoxal is the dialdehyde that is the smallest possible and which consists of ethane having oxo groups on both carbons. It has a role as a pesticide, an agrochemical, an allergen and a plant growth regulator.
General Description Yellow crystals melting at15°C. Hence often encountered as a light yellow liquid with a weak sour odor. Vapor has a green color and burns with a violet flame.
Air & Water Reactions Mixtures with air may explode. Polymerizes quickly on standing, or on contact with a trace of water (possibly a violent reaction), or when dissolved in solvents containing water, [Merck, 502(1968)]. Soluble in water. An aqueous solution contains mono molecular Glyoxal. [Hawley]
Reactivity Profile Glyoxal reacts vigorously with strong oxidizing agents such as nitric acid. Polymerizes rapidly even at low temperature if anhydrous [Noller]. Aqueous solutions are more stable but also polymerize on standing. Reacts with itself in the presence of base to give glyconates. Undergoes addition and condensation reactions that may be exothermic with amines, amides, aldehydes, and hydroxide-containing materials. Mixing in equal molar portions with any of the following substances in a closed container caused the temperature and pressure to increase: chlorosulfonic acid, oleum, ethyleneimine, nitric acid, sodium hydroxide [NFPA 1991].
Hazard Mixture of vapor and air may explode. Questionable carcinogen.
Health Hazard Glyoxal is a skin and eye irritant; the effectmay be mild to severe. Its vapors are irritatingto the skin and respiratory tract. Anamount of 1.8 mg caused severe irritation inrabbits’ eyes. Glyoxal exhibited low toxicityin test subjects. Ingestion may cause somnolenceand gastrointestinal pain.
LD50 value, oral (guinea pigs): 760 mg/kg.
Health Hazard Inhalation causes some irritation of nose and,40% solution throat. Contact with liquid,40% solution irritates eyes and causes mild irritation of skin; stains skin yellow. (No information available on symptoms of ingestion.)
Fire Hazard Behavior in Fire: Heat may cause polymerization to a combustible, viscous material.
Flammability and Explosibility Not classified
Safety Profile Low toxicity by SYN: AEROTEX GLYOXAL 40 ingestion and skin contact. A skin irritant. A powerful reducing agent. May explode on contact with air. Polymerizes violently on contact with water. During storage it may spontaneously polymerize and ignite. Reacts violently with chlorosulfonic acid, ethylene imine, HNO3, oleum, NaOH, can cause violent reactions. Can explode during manufacture. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.
Waste Disposal Glyoxal is mixed with a combustible solventand burned in a chemical incineratorequipped with an afterburner and scrubber.