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Solubility Calcium fluoride. Solubility CaF2. Properties Cal

作者:ihpa.net 发布时间:2018-02-13

Calcium fluoride [CaF2]

 

SOLUBILITY:
acetone [(CH3)2CO]: solventless
water [H2O]: 0,0013 (0°), 0,0015 (15°), 0,0016 (18°), 0,0016 (25°), 0,0017 (40°)
bromine trifluoride [BrF3]: 0,017 (25°), solventless (70°)
fluorine hydride [HF]: 1,444 (-23°), 1,061 (-3,3°), 0,817 (12,2°)

PROPERTIES:
colourless cubic crystals
M (molar mass): 78,080 g/mol
MP (melting point): 1400 °C
MB (boiling point): 2500 °C
D (density): 3,18 (20°, g/cm3, s.)
ΔHmelt (molar enthalpy of melting): 29,7 kJ/mol
ΔHboil (molar enthalpy of boiling): 305 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -784 (g) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -1161,9 (s) kJ/mol
S°298 (standard molar entropy at 298 К): 274 (g) J/(molК)
C°p (standard molar heat capacity): 51 (g) J/(molК)
P (vapor pressure): 1 (1625°), 10 (1850°) Mmhg or Torr
LD50 (median lethal doses for laboratory animals): 4417 (rats, i/g) mg/kg
n (refractive index): 1,434 (20°)
pSP (solubility product index): 10,4 (20°, water)

LITERARY REFERENCES:
Spravochnik po rastvorimosti. - T.1, Kn.1. - M.-L.: IAN SSSR, 1961. – P. 244
Himicheskaya enciklopediya. - T.5. - M.: Sovetskaya enciklopediya, 1999. – P. 111
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 296-297
Efimov A.I. i dr. Svoystva neorganicheskih soedineniy. Spravochnik. - L.: Himiya, 1983. – P. 140-141
Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 72

Copper powderCadmium selenide powderBoron Nitride powderBoron Nitride powderZinc Sulfide powder

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