Periodic table of elements

Sodium fluoride [NaF]

SOLUBILITY:
ammonia liquid [NH3]: 0,35 (25)
acetone [(CH3)2CO]: 0,0000024 (18)
water [H2O]: 4,11 (0), 4,28 (20), 4,54 (40), 4,69 (80)
sulfur dioxide [SO2]: 0,029 (0)
methanol [CH3OH]: 0,413 (20)
bromine trifluoride [BrF3]: 2,12 (25), 2,62 (70)
fluorine hydride [HF]: 22,1 (-24,3), 25,1 (-9,8), 30,1 (11)
ethanol [C2H5OH]: 0,095 (20)

PROPERTIES:
colourless cubic crystals
M (molar mass): 41,990 g/mol
MP (melting point): 992 °C
MB (boiling point): 1700 °C
D (density): 2,79 (20, ?/??3, ?.)
η (dynamic viscosity): 1,85 (1015), 1,41 (1110), 1,14 (1200) mPa∙s
ΔHmelt (molar enthalpy of melting): 32,6 kJ/mol
ΔHboil (molar enthalpy of boiling): 209 kJ/mol
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -288 (?) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -543,3 (?) kJ/mol
298 (standard molar entropy at 298 К): 217,5 (?) J/(mol•К)
p (standard molar heat capacity): 34,22 (?) J/(mol•К)
Surf. tens. (surface tension): 185 (1000), 181 (1050), 179 (1080) mN/m
P (vapor pressure): 0,1 (916), 1 (1075), 10 (1238), 100 (1452) Mmhg or Torr
LD50 (median lethal doses for laboratory animals): 200 (?????, ?/?) mg/kg

LITERARY REFERENCES:
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 1257-1260
• ????????? ?.?., ????? ?.?. ??????? ?????????? ??????????. - ?.: ?????, 1977. – P. 86
• ????????????????? ???????. - 2004. - ?3. – P. 38

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