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Properties of substance:

silver azide



skc-file

Group of substances:

inorganic

Physical appearance:

white rhombic crystals

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

AgN3

Structural formula as text:

AgN3

Molar/atomic mass: 149.89

Melting point (°C):

250

Decomposition temperature (°C):

297

CAS №: 13863-88-2

Solubility (g/100 g of solvent):

acetone: 0.015 (20°C) [Ref.]
ethanol: 0.006 (20°C) [Ref.]
water: insoluble (20°C) [Ref.]
water: 0.01 (100°C) [Ref.]

Hygroscopic:

no

Numerical data:

Heat of Explosion (kJ/kg): 1860

Density:

4.81 (20°C, g/cm3)

Electrode potential:

AgN3 + e- → Ag + N3-, E = 0.292 V (water, 25°C)

Dissociation:

pKsp (0) = 7.82 (45°C, water)
pKsp (0) = 8.19 (35°C, water)
pKsp (0) = 8.58 (25°C, water)
pKsp (0) = 9.01 (15°C, water)
pKsp (0) = 9.48 (5°C, water)

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

279.5 (s)

References:

  1. Bretherick's Handbook of Reactive Chemical Hazards. - 6 ed., Vol. 1. - Butterworth-Heinemann, 1999. - pp. 12-13
  2. Matyas R., Pachman J. Primary Explosives. - Springer, 2013. - pp. 89-96
  3. Urbanski T. Chemistry and technology of explosives. - vol.3. - Warszawa, 1967. - pp. 182-184
  4. Багал Л.И. Химия и технология инициирующих взрывчатых веществ. - М., 1975. - pp. 238-241 [Russian]
  5. Руководство по неорганическому синтезу. - Т.4, под ред. Брауэра Г. - М.: Мир, 1985. - pp. 1094 [Russian]
  6. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 206-207 [Russian]
  7. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 750 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru