What Are Alkynes?
Alkyne, a general term for hydrocarbons containing carbon-carbon triple bonds in the molecule, is an unsaturated aliphatic hydrocarbon. The molecular formula of linear alkynes is CnH2n-2 (where n is a non-positive 1 integer), simple The alkyne compounds include acetylene (C2H2), propyne (C3H4) and the like. Among them, acetylene is the most important kind of alkyne, which can be used in industry to illuminate, weld and cut metal (oxyacetylene flame), and it is also the basic raw material for the production of acetaldehyde, acetic acid, benzene, synthetic rubber, synthetic fibers, etc.
- Alkynes (phonetic: qutng; English: Alkyne) are a type
- Alkyne
- In organic molecules
- Alkynes have a low boiling point, a small density, are difficult to dissolve in water, and are easily soluble.
- The general preparation of alkynes is through the dehydrohalogenation of o-dihalogenated alkanes, and it can also be obtained by reacting metal alkyne compounds with first-order halogenated alkanes. In the Fritsch-Buttenberg-Wiechell rearrangement, alkynes are brominated again
- 2. After the alkynide dries, a strong explosion occurs upon impact, generating metal and carbon. Therefore, at the end of the reaction, dilute nitric acid should be added to decompose.
- 4. Acetylene is unstable and very active. Protect acetylene from heat.
- 5. Acetylene must not be mixed with strong oxidants, strong acids and halogens.
- 6. Acetylene is mixed with air to form explosive mixtures, which can cause combustion and explosion when exposed to open flames and high heat energy.
- 7. Acetylene can form explosive substances with copper, silver, mercury and other compounds.