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1-Methylnaphthalene

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Identification
Molecular formula
C11H10
CAS number
90-12-0
IUPAC name
1-methylnaphthalene
State
State

1-Methylnaphthalene is in a liquid state at room temperature.

Melting point (Celsius)
-22.70
Melting point (Kelvin)
250.45
Boiling point (Celsius)
240.00
Boiling point (Kelvin)
513.15
General information
Molecular weight
142.20g/mol
Molar mass
142.2020g/mol
Density
1.0207g/cm3
Appearence

1-Methylnaphthalene is a colorless to pale yellow liquid at room temperature. It has an aromatic odor characteristic of naphthalenes. It is usually stable but may discolor upon exposure to air and light over time.

Comment on solubility

Solubility of 1-Methylnaphthalene

1-Methylnaphthalene, with the chemical formula C11H10, exhibits distinct solubility characteristics that make it an interesting compound in the realm of organic chemistry.

In terms of solubility:

  • Organic Solvents: 1-Methylnaphthalene is relatively soluble in a variety of organic solvents including ethanol, ether, and chloroform.
  • Aqueous Solubility: This compound displays very low solubility in water. The non-polar nature of its structure contributes to its hydrophobic characteristics.
  • Temperature Dependency: Solubility may increase with temperature, as is common with many organic compounds. However, specific data would be needed to quantify these changes.

To summarize, the solubility profile of 1-methylnaphthalene can be underscored by:

  • High solubility in non-polar organic solvents.
  • Insignificant solubility in polar solvents like water.
  • Dependence on temperature for changes in solubility.

As a result, 1-methylnaphthalene is generally utilized in scenarios where organic solvents are present, while its low solubility in water restricts its applications in aqueous systems.

Interesting facts

Interesting Facts about 1-Methylnaphthalene

1-Methylnaphthalene is an intriguing aromatic hydrocarbon that belongs to the naphthalene family. Here are some fascinating insights into this compound:

  • Aromatic Hydrocarbon: It is classified as an aromatic hydrocarbon due to its structure, which features a fused ring system consisting of two naphthalene rings with an additional methyl group. This brings unique stability and reactivity characteristics.
  • Uses: 1-Methylnaphthalene is not just a chemical curiosity; it's widely utilized in various industries. It serves as:
    • A solvent in chemical reactions.
    • A precursor in organic synthesis, particularly for the production of dyes and plastics.
    • In the manufacturing of anti-knock agents for gasoline.
  • Environmental Impact: As an organic pollutant, 1-methylnaphthalene can pose environmental risks, particularly in areas affected by petroleum spills. It is important for chemists to monitor concentrations in soil and water.
  • Physical Properties: The unique properties of 1-methylnaphthalene contribute to its volatility and solubility in organic solvents, making it valuable in laboratory applications but also necessitating caution.
  • Resonance Structures: The resonance stability of 1-methylnaphthalene due to its aromatic rings allows it to engage in various electrophilic aromatic substitution reactions, which are crucial in many organic reactions.

Understanding compounds like 1-methylnaphthalene is essential for advancing chemical applications and addressing environmental concerns. Its unique properties and versatility make it a significant topic of study in the chemistry world.

Synonyms
1-METHYLNAPHTHALENE
90-12-0
METHYLNAPHTHALENE
alpha-Methylnaphthalene
1321-94-4
Naphthalene, methyl-
Naphthalene, 1-methyl-
1-methyl-naphthalene
1-Methylnapththalene
alpha-methyl naphthalenes
FEMA No. 3193
FEMA Number 3193
Methyl naphthalene
.alpha.-Methylnaphthalene
Naphthalene, alpha-methyl-
1-Methyl naphthalene
Methyl-1-naphthalene
CCRIS 6151
HSDB 5268
methyl-naphthalene
NSC 3574
EINECS 201-966-8
UNII-E7SK1Y1311
DTXSID9020877
CHEBI:50717
MECHINAFU H
METHYNAPH H
naphthalene, 1-methyl
AI3-15378
alpha-methyl-naphthalene
E7SK1Y1311
NSC-3574
MFCD00004034
DTXCID30877
CHEMBL383808
EC 201-966-8
1-METHYLNAPHTHALENE [FHFI]
1-METHYLNAPHTHALENE [HSDB]
1-Methylnaphthalene, analytical standard
CAS-90-12-0
1Methylnaphthalene
1-methylnaphtalene
a-methylnaphthalene
alpha-Methylnaftalen
Naphthalene, 1-methyl-; 1-Methylnaphthalene; Mechinafu H; Methynaph H; NSC 3574; a-Methylnaphthalene
a-methyl-naphthalene
alphamethylnaphthalene
Naphthalene, 1methyl
Naphthalene, alphamethyl
Naphthalene, alpha-methyl
bmse000531
1-Methylnaphthalene, 95%
1-Methylnaphthalene, 96%
MLS001050152
BIDD:ER0662
1-Methylnaphthalene, >=95%
WLN: L66J B1
FEMA 3193
DTXSID10225161
NSC3574
Tox21_201768
Tox21_300339
BDBM50159279
STL283953
AKOS000120012
MSK000683-100T
NCGC00091700-01
NCGC00091700-02
NCGC00091700-03
NCGC00254488-01
NCGC00259317-01
AS-88435
PD124014
SMR001216533
DB-049234
DB-078596
M0371
NS00002590
EN300-19783
1-Methylnaphthalene 10 microg/mL in Cyclohexane
1-Methylnaphthalene 10 microg/mL in Acetonitrile
A843450
Q161656
1-Methylnaphthalene Solution in Toluene, 100ug/mL
Z104475342
Flavor and Extract Manufacturers' Association Number 3193
1-Methylnaphthalene, TraceCERT(R), certified reference material
201-966-8