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Propyne

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Identification
Molecular formula
C3H4
CAS number
74-99-7
IUPAC name
prop-1-yne
State
State

At room temperature, Propyne is in a gaseous state.

Melting point (Celsius)
-101.50
Melting point (Kelvin)
171.65
Boiling point (Celsius)
-23.20
Boiling point (Kelvin)
249.95
General information
Molecular weight
40.07g/mol
Molar mass
40.0650g/mol
Density
0.6910g/cm3
Appearence

Propyne is a colorless gas with a weak, ethereal odor, resembling that of acetylene.

Comment on solubility

Solubility of Prop-1-yne (C3H4)

Prop-1-yne, a simple alkyne, exhibits interesting solubility characteristics that are worth considering in various contexts. Here are some key points:

  • Solvent Interaction: Prop-1-yne is primarily soluble in organic solvents. It demonstrates good solubility in:
    • Hydrocarbons (e.g., hexane, benzene)
    • Alcohols (e.g., ethanol)
  • Water Insolubility: Notably, prop-1-yne is insoluble in water due to its non-polar structure, which contrasts with the polar nature of water molecules.
  • Temperature Effects: The solubility of prop-1-yne in organic solvents can be influenced by temperature. Generally, solubility increases with rising temperatures.
  • Practical Implications: This solubility profile makes prop-1-yne suitable for applications in various chemical reactions and industrial processes where non-polar solvents are used.

In summary, while prop-1-yne is insoluble in water, it successfully dissolves in several organic solvents, making it versatile in applicable chemistry!

Interesting facts

Interesting Facts about Prop-1-yne

Prop-1-yne, also known as methylacetylene, is a fascinating compound that belongs to the class of alkynes, characterized by the presence of a triple bond between carbon atoms. Here are some intriguing points about this unsaturated hydrocarbon:

  • Reactivity: The triple bond in prop-1-yne makes it more reactive than its alkene counterparts. This reactivity is pivotal in various organic synthesis processes, allowing for the formation of a wide range of compounds.
  • Industrial Application: Prop-1-yne is used in the production of chemicals such as acetic acid and is involved in various synthesis reactions, including the formation of polymer materials.
  • Natural Occurrences: This compound can be found in trace amounts in some natural sources, including certain petroleum products. Such occurrences make it quite interesting from a natural chemistry perspective.
  • Synthesis: It can be synthesized through several methods, including the dehydrohalogenation of haloalkanes and the elimination of hydrogen from propyne.
  • Safety Considerations: As a flammable gas, prop-1-yne must be handled with care. Its potential hazards necessitate stringent safety measures in both laboratory and industrial settings.

"Variability in structure leads to variability in function." This quote encapsulates the essence of why compounds like prop-1-yne are invaluable in the world of chemistry. Not only does its unique structure offer diverse functionalities, but it also serves as a starting point for numerous chemical reactions, showcasing the intricate relationship between molecular architecture and chemical behavior.

With its intriguing properties and applications, prop-1-yne remains a compound of notable interest in both academic research and industrial chemistry.

Synonyms
Propyne
Methylacetylene
prop-1-yne
74-99-7
1-PROPYNE
Methyl acetylene
Allylene
Acetylene, methyl-
METHYLACETYLENE-D1
CCRIS 6830
HSDB 2508
EINECS 200-828-4
UNII-086L40ET1B
BRN 0878138
CHEBI:48086
Methyl-d3-acetylene
086L40ET1B
MFCD00036235
7299-37-8
DTXSID0026387
4-01-00-00958 (Beilstein Handbook Reference)
Propyne, ca. 4% in N,N-Dimethylformamide, ca. 1.0mol/L
Propynylidyne
Allylene; Methylacetylene; Propine
Propyne, >=97%
Propyne, >=99%
1-PROPYNE [HSDB]
CH3C.$.CH
CHEMBL116902
DTXCID406387
AKOS009104530
Prop-1-yne, ca 3% solution in heptane
DA-65397
InChI=1/C3H4/c1-3-2/h1H,2H
NS00019844
P1881
P2152
P2295
Q151446
Propyne (ca. 5% in Tetrahydrofuran, ca. 1 mol/L)
Q3407647
200-828-4
28391-48-2