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Properties of substance:

hypochlorous acid

Group of substances:

inorganic

Physical appearance:

yellow aqueous solution

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

HClO

Structural formula as text:

HOCl

Molar/atomic mass: 52.46

Solubility (g/100 g of solvent):

diethyl ether: very soluble [Ref.]

Interatomic distances and bond angles:

Interatomic distances (in pm): 97,4 (H-O)
Interatomic distances (in pm): 168,9 (Cl-O)
Bond angles (in degrees): 104 (H-O-Cl)

Reactions of synthesis:

  1. [Ref.1aster, Ref.2aster, Ref.3, Ref.4aster]
    2Cl2 + HgO + H2O → 2HClO + HgCl2
  2. [Ref.1aster, Ref.2]
    Cl2O + H2O → 2HClO

Dissociation:

pKa (1) = 7.2 (25°C, water)

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

-90 (g)

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

-71 (g)

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

236.474 (g)

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

37.284 (g)

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

-124.7

References:

  1. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 55 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 251-252, 259-261 [Russian]
  3. Реакции и методы исследования органических соединений. - Кн. 6. - М.: ГНТИХЛ, 1957. - pp. 14 [Russian]
  4. Термодинамические свойства индивидуальных веществ. - Т.1, Кн.2. - М.: Наука, 1978. - pp. 103 [Russian]
  5. Успехи химии. - 2004. - Т.73, №6. - pp. 665-667 [Russian]
  6. Химическая технология неорганических веществ. - Кн.2, под ред. Ахметова Т.Г. - М.: Высшая школа, 2002. - pp. 269-270 [Russian]
  7. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 573 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru