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1,2-Dimethylcyclohexane

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Identification
Molecular formula
C8H16
CAS number
583-57-3
IUPAC name
1,2-dimethylcyclohexane
State
State

At room temperature, 1,2-Dimethylcyclohexane is in a liquid state. It has a relatively low melting point, making it liquid over a wide range of temperatures.

Melting point (Celsius)
-96.90
Melting point (Kelvin)
176.25
Boiling point (Celsius)
116.00
Boiling point (Kelvin)
389.15
General information
Molecular weight
112.21g/mol
Molar mass
112.2140g/mol
Density
0.8322g/cm3
Appearence

1,2-Dimethylcyclohexane is a colorless liquid with a faint petroleum-like odor. It is typically transparent and can appear oily.

Comment on solubility

Solubility of 1,2-dimethylcyclohexane

1,2-dimethylcyclohexane is an intriguing compound when it comes to its solubility characteristics. As a saturated hydrocarbon (specifically an alkane), it exhibits specific behaviors in various solvents:

  • Non-polar Solvents: 1,2-dimethylcyclohexane is highly soluble in non-polar solvents such as hexane and benzene. This is due to the principle of like dissolves like, where non-polar molecules tend to dissolve well in non-polar environments.
  • Polar Solvents: In contrast, this compound shows limited solubility in polar solvents like water. The significant difference in polarity results in minimal interaction between the polar solvent molecules and the non-polar compound, leading to poor solubility.
  • Temperature Effects: It's essential to note that solubility can fluctuate with temperature changes. Generally, non-polar compounds like 1,2-dimethylcyclohexane may see increased solubility in non-polar solvents when elevated temperatures are applied, as kinetic energy allows for better interactions.

In conclusion, 1,2-dimethylcyclohexane's solubility behavior emphasizes the importance of molecular structure and polarity. The compound's affinity for non-polar environments can be summed up as:

  • High solubility in non-polar solvents
  • Very low solubility in polar solvents

Understanding these solubility properties can be crucial for applications in organic chemistry, including solvent selection for reactions and extractions.

Interesting facts

Interesting Facts about 1,2-Dimethylcyclohexane

1,2-Dimethylcyclohexane is a fascinating organic compound that holds a special place within the realm of cycloalkanes. Here are some engaging facts about this intriguing molecule:

  • Structural Variants: This compound has two distinct methyl groups attached to the cyclohexane ring at the 1 and 2 positions, leading to unique stereochemistry. This results in different conformations which impact its stability and reactivity.
  • Conformational Flexibility: Like other cyclohexanes, 1,2-dimethylcyclohexane can adopt various chair and boat conformations. The chair conformation is more stable; however, the orientation of methyl groups can significantly alter steric interactions.
  • Impact on Physical Properties: The presence of the two methyl groups affects properties such as boiling points and vapor pressures when compared to unsubstituted cyclohexane. This is an excellent example of how functional groups can navigate the landscape of chemical behavior.
  • Industrial Relevance: 1,2-Dimethylcyclohexane is utilized in organic synthesis as a solvent and in various applications in research and industry, showcasing the practical importance of understanding its chemical structure.
  • Chirality and Isomerism: While 1,2-dimethylcyclohexane itself is not chiral, the presence of substituents on the cyclohexane ring can lead to interesting isomeric forms that exhibit varying chemical behaviors—a valuable topic of study in stereochemistry.

In the words of chemist Linus Pauling, "The best way to have a good idea is to have a lot of ideas." Exploring compounds like 1,2-dimethylcyclohexane illustrates the wonder and complexity of organic chemistry, encouraging us to dive deeper into the molecular world.

Synonyms
1,2-DIMETHYLCYCLOHEXANE
583-57-3
Cyclohexane, 1,2-dimethyl-
o-Dimethylcyclohexane
EINECS 209-509-4
NSC 43769
UNII-5D8M6YR6O1
5D8M6YR6O1
DTXSID50858730
NSC-43769
Cyclohexane, 1,2dimethyl
DTXCID50809464
Cyclohexane, 1,2-dimethyl-(8CI)
Cyclohexane, 1,2-dimethyl-(cis/trans)
Cyclohexane, 1,2-dimethyl-(8CI)(9CI)
1,2-DIMETHYLCYCLOHEXANE (CIS-AND TRANS-MIXTURE)
209-509-4
kvzjlsyjroepsq-uhfffaoysa-n
un 2263
Hexahydro-o-xylene
Cyclohexane, 1,2-dimethyl- (cis/trans)
Cyclohexane, 1,2-dimethyl-; 1,2-Dimethylcyclohexane; NSC 43769; o-Dimethylcyclohexane
MFCD00064172
Cyclohexane,2-dimethyl-
1,2-dimethyl-cyclohexane
NSC43769
AKOS015913311
DB-053193
D0698
NS00079894
1,2-Dimethylcyclohexane (cis- and trans- mixture)
Q24702624