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CAS 74-86-2

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Acetylene

Description:
Acetylene, with the CAS number 74-86-2, is a colorless, flammable gas that is the simplest alkyne, characterized by its triple bond between two carbon atoms. Its molecular formula is C2H2. Acetylene has a distinctive odor, often described as similar to garlic, and is highly soluble in organic solvents like alcohol and ether, but only slightly soluble in water. It is primarily used as a fuel and a building block in organic synthesis, particularly in the production of plastics, synthetic rubber, and various chemicals. Acetylene is also widely utilized in oxy-acetylene welding and cutting due to its high flame temperature when burned in oxygen. The gas is highly reactive and can form explosive mixtures with air, necessitating careful handling and storage. Additionally, acetylene can polymerize under certain conditions, leading to the formation of various polymers. Its reactivity and flammability make it a critical substance in both industrial applications and laboratory settings, requiring adherence to safety protocols to mitigate risks.
Formula:C2H2
InChI:InChI=1S/C2H2/c1-2/h1-2H
InChI key:InChIKey=HSFWRNGVRCDJHI-UHFFFAOYSA-N
SMILES:C#C
Synonyms:
  • Acetileno
  • Acetylen
  • Acetylene
  • Ethine
  • Narcylen
  • Un3374
  • Vinylene
  • Ethyne
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