Periodic table of elements

Lithium sulfide [Li2S]

SOLUBILITY:
water [H2O]: ?.?.
ethanol [C2H5OH]: ?.?.

PROPERTIES:
sulfur rhombic crystals
M (molar mass): 45,950 g/mol
MP (melting point): 1370 °C
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -447 (?) kJ/mol
298 (standard molar entropy at 298 К): 63 (?) J/(mol•К)
LD50 (median lethal doses for laboratory animals): 1200 (?. ????, ?/?) mg/kg

LITERARY REFERENCES:
• ??????? ???????? ? ??????????????: ?????????? ??? ???????, ????????? ? ??????. - 7-? ???., ?.3. - ?.: ?????, 1976. – P. 321
• ?????????? ????????????. - ?.2. - ?.: ????????? ????????????, 1990. – P. 605
• ?????? ?.?. ? ??. ???????? ?????????????? ??????????. ??????????. - ?.: ?????, 1983. – P. 148-149

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