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Properties of substance:

2,4,6-trinitro-1,3-benzenediol

Synonyms:

styphnic acid

Group of substances:

organic

Physical appearance:

yellow hexagonal crystals

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

C6H3N3O8

Structural formula as text:

(NO2)3C6H(OH)2

Molar/atomic mass: 245.11

Melting point (°C):

180

Solubility (g/100 g of solvent):

acetone: 313.1 (17°C) [Ref.]
benzene: 4.5 (5°C) [Ref.]
benzene: 47 (68°C) [Ref.]
diethyl ether: difficulty soluble [Ref.]
ethanol: 5.1 (0°C) [Ref.]
ethanol: 6.22 (17°C) [Ref.]
ethanol: 14.65 (68°C) [Ref.]
toluene: 5.1 (10°C) [Ref.]
water: 0.54 (25°C) [Ref.]
water: 1.15 (62°C) [Ref.]
water: 3.326 (95.9°C) [Ref.]

Density:

1.829 (20°C, g/cm3)

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

-467.5 (s)

References:

  1. Armarego W. L. F. Purification of Laboratory Chemicals. - 7ed. - 2013. - pp. 380
  2. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-30
  3. Seidell A. Solubilities of organic compounds. - 3ed., vol.2. - New York: D. Van Nostrand Company, 1941. - pp. 339-340
  4. Yalkowsky S.H., Yan H. Handbook of aqueous solubility data. - CRC Press, 2003. - pp. 202-203
  5. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 960-961 [Russian]
  6. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 637 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru