Ethylene

Base Information

• Chemical Name: Ethylene
• CAS No.: 9002-88-4
• Deprecated CAS: 33060-30-9,87701-64-2,87701-65-3,87701-65-3
• Molecular Formula: (C2H4)n
• Molecular Weight: 28.0532
• Hs Code.: 39041090
• European Community (EC) Number: 200-815-3,682-561-7
• ICSC Number: 0475
• UN Number: 1962,1038
• UNII: 91GW059KN7
• DSSTox Substance ID: DTXSID1026378
• Nikkaji Number: J1.939I,J1.671.339B
• Wikipedia: Ethylene
• Wikidata: Q151313,Q27286698
• NCI Thesaurus Code: C76752
• Metabolomics Workbench ID: 51172
• ChEMBL ID: CHEMBL117822
• Mol file: 9002-88-4.mol

Synonyms:ethene;ethylene

Chemical Property of Ethylene

Chemical Property:

• Appearance/Colour: powder
• Melting Point: 92ºC
• Boiling Point: 48-110 °C(Press: 9 Torr)
• Flash Point: 270 ºC
• PSA: 0.00000
• Density: 0.95
• LogP: 1.02620
• Storage Temp.: ?20°C
• Water Solubility.: Soluble in acetone and benzene. Insoluble in water.
• XLogP3: 1.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 28.0313001276
• Heavy Atom Count: 2
• Complexity: 0
• Transport DOT Label: Flammable Gas

Purity/Quality:

99% ^*data from raw suppliers

Carboxypeptidase E ^*data from reagent suppliers

Safty Information:

• Safety Statements: 22-24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Simple Asphyxiants
• Canonical SMILES: C=C
• Inhalation Risk: On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas.
• Effects of Short Term Exposure: Exposure could cause lowering of consciousness.
• Historical Background and Discovery: Ethylene, also known as ethene, is an alkene and a gas molecule. It was one of the earliest discovered plant hormones, recognized for its role in plant growth regulation. Its discovery dates back to the early 20th century when its effects on plant growth were observed from gas emitted by street lamps.
• Plant Hormone and Growth Regulation: Ethylene serves as a plant growth regulator, influencing processes such as growth, ripening, and germination in fruits and vegetables. It plays specific roles depending on the nature of the fruit, its maturity, and exposure to ethylene. While it accelerates ripening, excessive exposure can lead to over-ripening and decay, necessitating the use of inhibitors or scavengers to preserve postharvest quality.
• Stress Hormone and Environmental Response: Ethylene acts as a stress hormone in plants, triggered by various environmental stresses such as metal stress, flood stress, and drought stress. It regulates growth and development responses under optimal and stressful conditions, diffusing easily to nearby cells and acting locally at the site of its production.
• Biosynthesis and Regulatory Enzymes: Ethylene biosynthesis is catalyzed by enzymes such as 1-aminocyclopropane-1-carboxylic acid (ACC) synthases (ACSs) and ACC oxidases (ACOs). These enzymes play a crucial role in ethylene production during fruit ripening, leaf senescence, and environmental stresses.
• Metabolic Regulation and Stress Tolerance: Ethylene interacts with various nutrients and phytohormones, regulating mechanisms such as photosynthesis, sulfur and nitrogen metabolism, glycine betaine production, and antioxidant defense systems. It also synthesizes secondary metabolites responsible for stress tolerance under adverse conditions.
• Environmental Impact and Green Initiatives: The ethylene industry, valued at $230 billion, has significant environmental implications, contributing to annual CO2 emissions. The quest for "green ethylene" has led to advancements in renewable energy and sustainable approaches, including electrified processes such as electric crackers and electrochemical reactors for ethylene production.