aromatization reaction of naphthalene
Answers
Aromatization is a chemical reaction in which an aromatic system is formed from a single nonaromatic precursor. Typically aromatization is achieved by dehydrogenation of existing cyclic compounds, illustrated by the conversion of cyclohexane into benzene.
Answer:
Naphthalene is an organic compound with formula C
10H
8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass.[13] As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings. It is best known as the main ingredient of traditional mothballs.
Naphthalene
Skeletal formula and numbering system of naphthalene
Ball-and-stick model of naphthalene
Spacefill model of naphthalene
Unit cells of naphthalene
Names
Preferred IUPAC name
Naphthalene[1]
Systematic IUPAC name
Bicyclo[4.4.0]deca-1,3,5,7,9-pentaene
Other names
white tar, camphor tar, tar camphor, naphthalin, naphthaline, antimite, albocarbon, hexalene, mothballs, moth flakes
Identifiers
CAS Number
91-20-3 check
3D model (JSmol)
Interactive image
Beilstein Reference
1421310
ChEBI
CHEBI:16482 check
ChEMBL
ChEMBL16293 check
ChemSpider
906 check
ECHA InfoCard
100.001.863 Edit this at Wikidata
EC Number
214-552-7
Gmelin Reference
3347
KEGG
C00829 check
PubChem CID
931
RTECS number
QJ0525000
UNII
2166IN72UN ☒
CompTox Dashboard (EPA)
DTXSID8020913 Edit this at Wikidata
InChI
InChI=1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H check
Key: UFWIBTONFRDIAS-UHFFFAOYSA-N check
InChI=1/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H
Key: UFWIBTONFRDIAS-UHFFFAOYAC
SMILES
c1=cc=c2c=cc=cc2=c1
Properties
Chemical formula
C10H8
Molar mass
128.174 g·mol−1
Appearance
White solid crystals/ flakes
Odor
Strong odor of coal tar
Density
1.145 g/cm3 (15.5 °C)[2]
1.0253 g/cm3 (20 °C)[3]
0.9625 g/cm3 (100 °C)[2]
Melting point
78.2 °C (172.8 °F; 351.3 K)
80.26 °C (176.47 °F; 353.41 K)
at 760 mmHg[3]
Boiling point
217.97 °C (424.35 °F; 491.12 K)
at 760 mmHg[2][3]
Solubility in water
19 mg/L (10 °C)
31.6 mg/L (25 °C)
43.9 mg/L (34.5 °C)
80.9 mg/L (50 °C)[3]
238.1 mg/L (73.4 °C)[4]
Solubility
Soluble in alcohols, liquid ammonia, Carboxylic acids, C6H6, SO2,[4] CCl4, CS2, toluene, aniline[5]
Solubility in ethanol
5 g/100 g (0 °C)
11.3 g/100 g (25 °C)
19.5 g/100 g (40 °C)
179 g/100 g (70 °C)[5]
Solubility in acetic acid
6.8 g/100 g (6.75 °C)
13.1 g/100 g (21.5 °C)
31.1 g/100 g (42.5 °C)
111 g/100 g (60 °C)[5]
Solubility in chloroform
19.5 g/100 g (0 °C)
35.5 g/100 g (25 °C)
49.5 g/100 g (40 °C)
87.2 g/100 g (70 °C)[5]
Solubility in hexane
5.5 g/100 g (0 °C)
17.5 g/100 g (25 °C)
30.8 g/100 g (40 °C)
78.8 g/100 g (70 °C)[5]
Solubility in butyric acid
13.6 g/100 g (6.75 °C)
22.1 g/100 g (21.5 °C)
131.6 g/100 g (60 °C)[5]
log P
3.34[3]
Vapor pressure
8.64 Pa (20 °C)
23.6 Pa (30 °C)
0.93 kPa (80 °C)[4]
2.5 kPa (100 °C)[6]
Henry's law
constant (kH)
0.42438 L·atm/mol[3]
Magnetic susceptibility (χ)
-91.9·10−6 cm3/mol
Thermal conductivity
98 kPa:
0.1219 W/m·K (372.22 K)
0.1174 W/m·K (400.22 K)
0.1152 W/m·K (418.37 K)
0.1052 W/m·K (479.72 K)[7]
Refractive index (nD)
1.5898[3]
Viscosity
0.964 cP (80 °C)
0.761 cP (100 °C)
0.217 cP (150
Explanation:
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