Naphthalene
An aromatic hydrocarbon, C10H8, 128.174 g/mol. Boiling point 424 °F at 760 mmHg, melting point 80.2 °C, as published.
Identifiers
- Molecular formula
- C₁₀H₈
- Molecular weight
- 128.174 g/mol
- Exact mass
- 128.0626 g/mol
- IUPAC name
- naphthalene
- c1ccc2ccccc2c1
- InChI=1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H
- UFWIBTONFRDIAS-UHFFFAOYSA-N
Measured properties
- Boiling Point
- 424 °F at 760 mmHg (NTP, 1992)
- 217.9 deg C
- Melting Point
- 176.4 °F (NTP, 1992)
- 80.2 °C
- Density
- 1.15 (NIOSH, 2024) - Denser than water; will sink
- 1.162 at 20 °C/4 °C
- Solubility
- less than 1 mg/mL at 72 °F (NTP, 1992)
- In water, 31 mg/L at 25 °C
- Vapor Pressure
- 0.05 mmHg at 68 °F ; 1 mmHg at 126.7 °F (NTP, 1992)
- 0.08 [mmHg]
- LogP
- log Kow = 3.30
- 3.30
- Flash Point
- 190 °F (NTP, 1992)
- 174 °F (NFPA, 2010)
- Viscosity
- 0.754 cP at 20 °C
- Refractive Index
- Index of refraction: 1.58212 at 100 °C/D
- Index of refraction: 1.4003 at 24 °C/D
Calculated properties
- Molecular weight
- 128.17 g/mol
- Exact mass
- 128.062600255 Da
- XLogP3
- 3.3
- Polar surface area
- 0 Ų
- Complexity
- 80
- H-bond donors
- 0
- H-bond acceptors
- 0
- logP
- 2.8398
- Topological polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Rotatable bonds
- 0
- Molar refractivity
- 43.948 cm³/mol
- Fraction sp³ carbons
- 0
- QED drug-likeness
- 0.5114
What it is made of
Elements
Structure
- Heavy atoms, hydrogen excluded
- 10
- Total atoms, hydrogen included
- 18
- Rings
- 2
- Aromatic rings
- 2
- Stereocentres
- 0
- Formal charge
- 0
Functional groups
Aromatic ring
The molecule in three dimensions
The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.
Reactions it appears in
Other names for it
The systematic name on this record is naphthalene.
The sources also call it Naphthalin, Tar camphor, White tar, Albocarbon, Naphthene, Camphor tar, naphtalene, Naphthaline, Moth balls, Moth flakes, Dezodorator.
Structurally related
Seen alongside it in reaction records
Molecules that appear in the same recorded reactions as Naphthalene. This says nothing about structure: most of them are the bases, solvents, ligands and catalysts the chemistry needed, and they are here because somebody put them in the same flask.
1,1,1,2-Tetrachloroethane
used as a reactant
C₂H₂Cl₄, 167.85 g/mol.
1-(1-Methylethyl)naphthalene
formed as a product
C₁₃H₁₄, 170.255 g/mol.
(-)-1-[6-(Diphenylphosphino)-4,7-dimethylindan-5-yl]-2-methoxynaphthalene
formed as a product
C₃₄H₃₁OP, 486.595 g/mol.
1-(1-Naphthalenyl)-1-butanone
formed as a product
C₁₄H₁₄O, 198.265 g/mol.
(-)-1-[6-(Diphenylphosphinoyl)-4,7-dimethylindan-5-yl]-2-methoxynaphthalene
used as a reactant
C₃₄H₃₁O₂P, 502.594 g/mol.
1,2-Dimethoxyethane
used as a reactant
C₄H₁₀O₂, 90.122 g/mol.
Where these values came from
chemistry engine
What this page does not claim
Identifiers are copied from the source record, measured values are reported as published, and calculated values are marked as calculated. Nothing here is a hazard, purity or handling assessment — how the library is checked.
Where to next
More molecules under N
The rest of this shelf, a hundred names at a time.
Molar mass calculator
Work with C10H8 in a calculation, with every element's contribution shown.
Molarity calculator
Grams of Naphthalene for a volume and a concentration, or the concentration a mass gives.
Open in ReactionLens
The full record in the workstation: every atom, every bond, and the reactions it appears in.