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Properties of substance:

naphthalene



skc-file

Group of substances:

organic

Physical appearance:

colorless monoclinic crystals

Empirical formula (Hill's system for organic substances):

C10H8

Molar/atomic mass: 128.171

Melting point (°C):

80.28

Boiling point (°C):

217.96

CAS №: 91-20-3

Solubility (g/100 g of solvent):

1,1,2-trichloro-1,2,2-trifluoroethane: very soluble [Ref.]
1-butanol: 7.28 (11.7°C) [Ref.]
1-propanol: 8.5 (20°C) [Ref.]
1-propanol: 100 (60°C) [Ref.]
2-butanol: 12.13 (28.7°C) [Ref.]
2-propanol: 8.222 (24.2°C) [Ref.]
acetic acid: 6.8 (6.75°C) [Ref.]
acetic acid: 13.1 (21.5°C) [Ref.]
acetone: 32 (6.3°C) [Ref.]
acetone: 64.9 (24.2°C) [Ref.]
ammonia liquid : 3.3 (0°C) [Ref.]
aniline: 25 (22°C) [Ref.]
benzene: 45.69 (15.6°C) [Ref.]
benzene: 59.2 (21°C) [Ref.]
butyric acid: 22.1 (21.5°C) [Ref.]
carbon disulphide: 57 (20°C) [Ref.]
carbon tetrachloride: 13.9 (6°C) [Ref.]
carbon tetrachloride: 32.74 (28.2°C) [Ref.]
chloroform: 46.6 (20°C) [Ref.]
chromyl chloride: soluble with reaction [Ref.]
cyclohexanol: 13.3 (20°C) [Ref.]
decaline: 25.5 (20°C) [Ref.]
decaline: 25.5 (20°C) [Ref.]
diethyl ether: 56.8 (25°C) [Ref.]
dimethylsulfoxide: 27 (20.3°C) [Ref.]
ethanol abs.: 5.29 (15°C) [Ref.]
formic acid 95%: 0.3 (18.5°C) [Ref.]
hexane: 16.4 (20°C) [Ref.]
hydrogen fluoride : slightly soluble [Ref.]
i-butanol: 6.8 (19.5°C) [Ref.]
iron pentacarbonyl: very slightly soluble [Ref.]
methanol: 8.1 (19.5°C) [Ref.]
methanol: 10 (25°C) [Ref.]
methanol: 41.5 (55°C) [Ref.]
methyl formate: 33.9 (25°C) [Ref.]
monochlorbenzene: 47.04 (22.1°C) [Ref.]
nitrobenzene: 42.46 (24°C) [Ref.]
p-cymene: 14.22 (30°C) [Ref.]
perfluorodibutyl ether: 0.0727 (25°C) [Ref.]
perfluorodibutyl ether: 0.1139 (35°C) [Ref.]
perfluorotributylamine: 0.05747 (25°C) [Ref.]
perfluorotributylamine: 0.08845 (35°C) [Ref.]
quinoline: 3.02 (20°C) [Ref.]
sulfur dioxide: 30 (20°C) [Ref.]
tert-butanol: 12.07 (31.6°C) [Ref.]
tetraline: 66.7 (23°C) [Ref.]
toluene: 40.3 (15.5°C) [Ref.]
toluene: 48 (20°C) [Ref.]
water: 0.003 (20°C) [Ref.]
water: 0.00344 (25°C) [Ref.]
water: 0.004153 (29.99°C) [Ref.]
water: 0.00442 (34.5°C) [Ref.]
water: 0.0244 (73.4°C) [Ref.]
xylene: 31.8 (13°C) [Ref.]

Numerical data:

Year of discovery: 1819

Not numerical data:

volatile in steam

Density:

1.168 (22°C, g/cm3)
0.9625 (100°C, g/cm3)

Reactions of synthesis:

  1. Yeild 90%. [Ref.1aster]
    2C10H7OCH3 + 2C2H5SH → 2C10H8 + 2CH3OH + C2H5SSC2H5

Reactions:

  1. Yeild 35-95%. [Ref.1aster]
    C10H8 + CH2O + HCl → C10H7CH2Cl + H2O

Vapour pressure (Torr):

0.0648 (20°C)
0.177 (30°C)
1 (50.1°C)
5 (74.2°C)
6.96 (80°C)
10 (85.8°C)
20 (101.7°C)
40 (119.4°C)
60 (130.2°C)
100 (144°C)
200 (167.7°C)
400 (191.5°C)

Dissociation:

pKBH+ (1) = -4 (0°C, hydrogen fluoride )

Retention indices for gas chromatography:

1183,4 (phase - DB-5, temperature-programmed conditions, 6 K/min)

LD50 (mg/kg):

1250 (rats, )
1200 (guinea pig, )
580 (mice, )
Ultraviolet/visible spectrum (maximum in nm, layer thickness 1 cm, in parentheses - extinction) = 320
Ultraviolet/visible spectrum (maximum in nm, layer thickness 1 cm, in parentheses - extinction) = 275
Ultraviolet/visible spectrum (maximum in nm, layer thickness 1 cm, in parentheses - extinction) = 312
Ultraviolet/visible spectrum (maximum in nm, layer thickness 1 cm, in parentheses - extinction) = 286

Critical temperature (°C):

475.2

Critical pressure (MPa):

4.051

References:

  1. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 647-658
  2. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 632-634
  3. Yalkowsky S.H., Yan H., Jain P. Handbook of aqueous solubility data. – 2nd ed. - CRC Press, 2010. - pp. 647-649
  4. Вредные химические вещества: Углеводороды, галогенпроизводные углеводородов. Справочник. - Л.: Химия, 1990. - pp. 219-226, 688-689 [Russian]
  5. Гуревич Д.А. Фталевый ангидрид. - М.: Химия, 1968. - pp. 198-200 [Russian]
  6. Дональдсон Н. Химия и технология соединений нафталинового ряда. - М.: ГНТИХЛ, 1963. - pp. 11-72 [Russian]
  7. Другов Ю.С., Родин А.А. Мониторинг органических загрязнений природной среды. - СПб.: Наука, 2004. - pp. 129, 423, 708 [Russian]
  8. Клар Э. Полициклические углеводороды. - Т.1. - М.: Химия, 1971. - pp. 209-220 [Russian]
  9. Корольченко А.Я., Корольченко Д.А. Пожаровзрывоопасность веществ и материалов и средства их тушения. - 2 изд, Ч.2. - М.: Ассоциация Пожнаука, 2004. - pp. 179 [Russian]
  10. Краткая химическая энциклопедия. - Т. 3: Мальтаза-Пиролиз. - М.: Советская энциклопедия, 1964. - pp. 389-391 [Russian]
  11. Краткий справочник физико-химических величин. - Под ред. Мищенко К.П., Равделя А.А. - Л.: Химия, 1974. - pp. 68-69 [Russian]
  12. Полюдек-Фабини Р., Бейрих Т. Органический анализ. - Л.: Химия, 1981. - pp. 30 [Russian]
  13. Промышленные хлорорганические продукты: Справочник. - М.: Химия, 1978. - pp. 629-631 [Russian]
  14. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 972, 1033, 1192, 1232-1233, 1297-1298, 1345-1346, 1402, 1434-1435, 1461, 1469, 1496-1497, 1515-1517, 1530-1534 [Russian]
  15. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 810-811 [Russian]
  16. Шатенштейн А.И., Петров Э.С. Влияние растворителей на образование и ионную диссоциацию аддуктов щелочных металлов с ароматическими углеводородами / Успехи химии. - 1967. - Т.36, №2. - pp. 269-287 [Russian]
  17. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 190-191 [Russian]
  18. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 366 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru