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Properties of substance:

1,3,4,6,7,9,9b-heptaazaphenalene-2,5,8-triamine



skc-file

Synonyms:

melem

Group of substances:

organic

Physical appearance:

gray amorphous substance

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

C6H6N10

Molar/atomic mass: 218.13

Decomposition temperature (°C):

450

CAS №: 1502-47-2

Solubility (g/100 g of solvent):

organic solvents: slightly soluble [Ref.]
water: 0.0003 (25°C) [Ref.]
water: 0.007 (100°C) [Ref.]

Numerical data:

Year of discovery: 1834

Density:

1.686 (20°C, g/cm3)

Dissociation:

pKBH+ (1) = 12.6 (20°C, water)
pKBH+ (2) = 2.17 (20°C, water)
pKBH+ (3) = 0.94 (20°C, water)
pKBH+ (4) = -1.83 (20°C, water)

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

-15.7 (s)

Heat of combustion (kJ/mol):

3236.4

LD50 (mg/kg):

1998 (mice, intraperitoneal)
1200 (, oral)

References:

  1. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 2331
  2. Токсикологический вестник. - 1995. - №1. - pp. 63 [Russian]
  3. Токсикологический вестник. - 2003. - №3. - pp. 49 [Russian]
  4. Успехи химии. - 1964. - Т.33, №7. - pp. 902-904 [Russian]
  5. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 23 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru