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Enthalpy of combustion of 4-diethylaminonitrosobenzene

✍ Scribed by Maria D.M.C. Ribeiro da Silva; M.Agostinha R. Matos; G. Pilcher; W.E. Acree; Jr.

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
110 KB
Volume
30
Category
Article
ISSN
0021-9614

No coin nor oath required. For personal study only.

✦ Synopsis

Crystalline aromatic C-nitroso compounds are white when dimeric and green when monomeric. In this note we report the enthalpies of combustion and sublimation of 4-diethylaminonitrosobenzene and show the thermochemical results to be consistent with this green compound being monomeric in the solid state.

Ε½ . A commercial sample TCI America Chemical Company was recrystallized five times from hexane and then sublimed in Β¨acuo. The elemental analysis results were in agreement with the corresponding calculated values. The experimentally determined mass fractions for C H N O were: C, 0.6745; H, 0.0785; N, 0.1569; 10 14 2 3 0.001 K in 3.04 MPa of oxygen with 1 cm of water added to the bomb. The energy for electrical ignition, combustion of the cotton fuse, and the corrections for nitric acid formation were determined as previously described. Ε½1,2. The energy of combustion of the auxiliary aid, hexadecane, was determined in separate a To whom correspondence should be addressed.

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