Main page (Russian) Search in database (English)

Properties of substance:

sulfur rhombic



skc-file

Synonyms:

sulfur orthorhombic

Group of substances:

inorganic

Physical appearance:

yellow rhombic crystals

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

S8

Structural formula as text:

S8

Molar/atomic mass: 256.52

Melting point (°C):

112.8

Boiling point (°C):

444.6

Solubility (g/100 g of solvent):

1,2-dichloroethane: 0.833 (25°C) [Ref.]
1,2-dichloroethane: 11.07 (97.5°C) [Ref.]
acetone: 2.5 (25°C) [Ref.]
ammonia liquid : 62.87 (-78°C) [Ref.]
ammonia liquid : 47.8 (0°C) [Ref.]
ammonia liquid : 34.5 (16.4°C) [Ref.]
ammonia liquid : 30.4 (25°C) [Ref.]
ammonia liquid : 23 (40°C) [Ref.]
amyl alcohol: 1.5 (95°C) [Ref.]
aniline: 85.96 (130°C) [Ref.]
arsenic trichloride: very soluble [Ref.]
benzene: 1 (0°C) [Ref.]
benzene: 1.2 (8°C) [Ref.]
benzene: 2.1 (25°C) [Ref.]
benzene: 4.5 (50°C) [Ref.]
benzene: 8.7 (70°C) [Ref.]
benzine: 4.38 (21°C) [Ref.]
benzine: 6.96 (26°C) [Ref.]
bromoform: 3.78 (5.6°C) [Ref.]
carbon disulphide: 1.05 (-109.5°C) [Ref.]
carbon disulphide: 3.674 (-65°C) [Ref.]
carbon disulphide: 10.96 (-25°C) [Ref.]
carbon disulphide: 16.54 (-11°C) [Ref.]
carbon disulphide: 22 (0°C) [Ref.]
carbon disulphide: 46.55 (22°C) [Ref.]
carbon disulphide: 50.4 (25°C) [Ref.]
carbon disulphide: 143.9 (50°C) [Ref.]
carbon disulphide: 257.1 (70°C) [Ref.]
carbon tetrachloride: 0.148 (-24°C) [Ref.]
carbon tetrachloride: 0.34 (0°C) [Ref.]
carbon tetrachloride: 0.84 (25°C) [Ref.]
carbon tetrachloride: 1.83 (50°C) [Ref.]
chloroform: 0.8 (13°C) [Ref.]
chloroform: 1.23 (24°C) [Ref.]
diethyl ether: 0.187 (13°C) [Ref.]
diethyl ether: 0.283 (23°C) [Ref.]
ethanol: 0.065 (25°C) [Ref.]
ethanol abs.: 0.051 (15°C) [Ref.]
ethanol abs.: 0.053 (18.5°C) [Ref.]
ethanol abs.: 0.42 (78°C) [Ref.]
ethyl acetate: soluble [Ref.]
heptane: slightly soluble [Ref.]
hexane: 0.07 (-20°C) [Ref.]
hexane: 0.16 (0°C) [Ref.]
hexane: 0.25 (20°C) [Ref.]
hexane: 0.55 (40°C) [Ref.]
hexane: 2.88 (100°C) [Ref.]
hydrazine: soluble with reaction 54 [Ref.]
hydrogen fluoride : insoluble [Ref.]
iodine liquid: soluble [Ref.]
kerosene: 16.1 (158°C) [Ref.]
linseed oil: 0.9 (5°C) [Ref.]
methanol: 0.028 (18.5°C) [Ref.]
methylamine: very soluble [Ref.]
oil of turpentine: 1.35 (10°C) [Ref.]
pentachloroethane: 1.197 (25°C) [Ref.]
phenol: 16.35 (174°C) [Ref.]
pyridine: 1.5 (20°C) [Ref.]
pyridine: 11.7 (84.5°C) [Ref.]
sulfur dioxide: insoluble [Ref.]
sulfur monochloride: 7.3 (-20°C) [Ref.]
sulfur monochloride: 13.28 (0°C) [Ref.]
sulfur monochloride: 25.52 (20°C) [Ref.]
sulfur monochloride: 51.5 (40°C) [Ref.]
tetrachloroethene: 1.53 (25°C) [Ref.]
tin tetrachloride: 5.8 (99°C) [Ref.]
toluene: 0.91 (0°C) [Ref.]
toluene: 1.82 (20°C) [Ref.]
toluene: 3.21 (40°C) [Ref.]
toluene: 6.3 (60°C) [Ref.]
trichloroethylene: 1.63 (25°C) [Ref.]
trimethylamine: sparingly soluble [Ref.]
water: 0.0000005 (25°C) [Ref.]

Properties of solutions:

20% (wt.), solvent - carbon disulphide
  Density (g/cm3) = 1.3709 (15°)


Density:

2.07 (20°C, g/cm3)
1.7988 (125°C, d4)

Reactions:

  1. [Ref.1, Ref.2, Ref.3aster]
    S + 3F2 → SF6
  2. [Ref.1]
    2S + Cl2 → S2Cl2
  3. [Ref.1aster]
    S8 + Cl2 → S8Cl2
  4. [Ref.1]
    2K + S → K2S
  5. [Ref.1aster, Ref.2]
    2Ag + S → Ag2S
  6. [Ref.1]
    2H2SO4 + S → 3SO2 + 2H2O
  7. [Ref.1]
    S + H2 → H2S
  8. [Ref.1]
    16NH3 + 10S → S4N4 + 6(NH4)2S
  9. [Ref.1]
    2Sb + 3S → Sb2S3
  10. [Ref.1]
    4Na2O + 4S → 3Na2S + Na2SO4
  11. [Ref.1]
    S + 4ClF → SF4 + 2Cl2
  12. [Ref.1]
    Si + 2S → SiS2
  13. [Ref.1aster]
    K2S + 3S → K2S4
  14. [Ref.1aster]
    2NaSH + 3S → Na2S4 + H2S
  15. [Ref.1]
    2NOCl + 2S → S2Cl2 + 2NO
  16. [Ref.1]
    6S + CCl4 → CS2 + 2S2Cl2

Half-life:

2716S = 21 ms (β+ (100%), β+2p (2%))
2816S = 125 ms (β+ (100%), β+p (20.7%))
2916S = 187 ms (β+ (100%), β+p (46.4%))
3016S = 1.178 s (β+ (100%))
3116S = 2.572 s (β+ (100%))
3216S = stable ( (isotopic abundance 95,02%))
3316S = stable ( (isotopic abundance 0,75%))
3416S = stable ( (isotopic abundance 4,21%))
3516S = 87.51 d. (β- (100%))
3616S = stable ( (isotopic abundance 0,02%))
3716S = 5.05 min (β- (100%))
3816S = 170.3 min (β- (100%))
3916S = 11.5 s (β- (100%))
4016S = 8.8 s (β- (100%))
4116S = 1.99 s (β- (100%))
4216S = 1.013 s (β- (100%))
4316S = 260 ms (β- (100%), β-n (40%))
43m16S = 480 ns (internal transition (100%))
4416S = 123 ms (β- (100%), β-n (18%))
4516S = 82 ms (β- (100%), β-n (54%))

Vapour pressure (Torr):

0.1 (137°C)
1 (182°C)
10 (243°C)
100 (331°C)

Permittivity (dielectric constant):

3.52 (118°C)

Viscosity (mPa·s):

10.94 (123°C)
7.09 (149.5°C)
7.19 (156.3°C)
77.2 (160.3°C)
500 (165°C)
1600 (184°C)
2150 (200°C)
1860 (220°C)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

0 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

0 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

31.9 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

22.7 (s)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

272.9 (g)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

167.7 (g)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

23.7 (g)

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

9.2

Critical temperature (°C):

1040

Critical pressure (MPa):

11.8

Critical density (g/cm3):

0.119

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1442-1455
  2. Вредные химические вещества: Неорганические соединения элементов V-VIII групп. Справочник. - Л., 1989. - pp. 170-192 [Russian]
  3. Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 5-27, 34, 57 [Russian]
  4. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51 [Russian]
  5. Иванова М.А., Кононова М.А. Химический демонстрационный эксперимент. - М.: Высшая школа, 1969. - pp. 31, 36 [Russian]
  6. Малин К.М., Боресков Г.К., Пейсахов И.Л., Слинько М.Г., Смыслов Н.И., Второв М.Н., Аркин Н.Л. Технология серной кислоты и серы. - М.-Л.: ГНТИХЛ, 1941. - pp. 14-18 [Russian]
  7. Машковский М.Д. Лекарственные средства. - 12-е изд., Т. 2. - М.: Медицина, 1998. - pp. 372 [Russian]
  8. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 311-312, 319-323 [Russian]
  9. Природная сера. - М.: Химия, 1972 [Russian]
  10. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 96 [Russian]
  11. Реакции серы с органическими соединениями. - Новосибирск: Наука, 1979 [Russian]
  12. Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 750-756 [Russian]
  13. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 601-616 [Russian]
  14. Справочник сернокислотчика. - Под ред. Малина К.М. - М.: Химия, 1971. - pp. 38-50 [Russian]
  15. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 319-321 [Russian]
  16. Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 236 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru