Advances in the Chemistry of Aliphatic<i>N</i>-Nitrosamines

Fridman, A. L.; Mukhametshin, F. M.; Новиков, С. С.

doi:10.1070/rc1971v040n01abeh001894

Cited by 84 publications

(30 citation statements)

References 122 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The second assumes the rearrangement of the excited state of NDMA to the N-nitrosodimethylammonium ion (2), followed by dissociation to the dimethylaminium radical (3) and NO radical (4). HNO (5) and Nmethylidenemethylamine (6) are generated as a result of the reaction of radicals 3 and 4 in the solvent cage [33] [34]. The only stable species in Scheme 1 are DMA and HNO 2 /NO À 2 ions, which were identified and quantified in this study as the major degradation products of NDMA, both at pH 3 and 7.…”

mentioning

confidence: 99%

UV Direct Photolysis of N-Nitrosodimethylamine (NDMA): Kinetic and Product Study

Stefan¹,

Bolton²

2002

HCA

151

133

View full text Add to dashboard Cite

Dedicated to Professor Andre¬ M. Braun on the occasion of his 60th birthdayThe ultraviolet (UV) direct photolysis of N-nitrosodimethylamine (NDMA) in aqueous solutions at pH 3 and 7 leads to dimethylamine, and nitrite and nitrate ions as the major degradation products. In addition, small amounts of formaldehyde, formic acid, and methylamine are formed. When the initial concentration of NDMA was 1 mm, only a 13% decrease in the total organic carbon (TOC) was measured at pH 7, whereas no significant change in the TOC was observed at pH 3. In the concentration range 0.01 ± 1 mm NDMA, zero-order kinetics is obeyed, whereas first-order kinetics is followed at concentrations below 0.01 mm. The photolysis occurs much faster at pH 3 than at pH 7, which is explained by the difference in the quantum yields of the process at these two pH values. UV Direct photolysis is an efficient process for the removal of NDMA from contaminated waters, and electrical energy per order (E EO ) values as low as 0.3 ± 0.5 kWh/order/m 3 were calculated for treatment of low concentrations of NDMA (0.001 mm).

show abstract

mentioning

confidence: 99%

UV Direct Photolysis of N-Nitrosodimethylamine (NDMA): Kinetic and Product Study

Stefan¹,

Bolton²

2002

HCA

151

133

View full text Add to dashboard Cite

show abstract

“…Diazeniumdiolates exhibit a moderately strong absorption band near 250 nm (1). By contrast, nitrosamines exhibit two absorption bands, a moderately strong band of short wavelength near 230 -245 nm and a second weak band of long wavelength near 350 nm (11,12). Hence, any absorption occurring at 350 nm has historically been taken as presumptive evidence of the presence of nitrosamine in a given diazeniumdiolate sample.…”

Section: Diazeniumdiolates (Compounds Containing the Anionic R 2 N[n(mentioning

confidence: 94%

“…Hence, any absorption occurring at 350 nm has historically been taken as presumptive evidence of the presence of nitrosamine in a given diazeniumdiolate sample. The problem with relying on this method for the detection of nitrosamines is that the absorption by nitrosamines at this wavelength is extremely weak (P ϳ 90 M Ϫ1 cm Ϫ1 ) (11,12) relative to that of the diazeniumdiolate (1) at 250 nm (P ϳ 7000 M Ϫ1 cm Ϫ1 ). Thus, the nitrosamine signal may be obscured under the far larger diazeniumdiolate absorption.…”

Section: Diazeniumdiolates (Compounds Containing the Anionic R 2 N[n(mentioning

confidence: 99%

See 1 more Smart Citation

Qualitative Thin-Layer and High-Performance Liquid Chromatographic Analysis of 1-Substituted Diazen- 1-ium-1,2-diolates on Aminopropyl-Bonded Silica Gel

Fitzhugh

Anadu

Waterhouse

et al. 2002

Analytical Biochemistry

View full text Add to dashboard Cite

“…There is considerable precedent for the formation of nitrosamines from nitrate salts [75,76]. Trialkylamines rearrange to dialkylnitrosamines, in part because of the driving force of multiple bond formation in the N-NO unit of the nitrosamine.…”

Section: Alkylammonium Nitrate Saltsmentioning

confidence: 99%

Structure-Thermolysis Relationships for Energetic Materials

Brill

1990

Chemistry and Physics of Energetic Materials

View full text Add to dashboard Cite

ABSTRACT.Rapid thermal decomposition studies (dT/dt > 70°C/sec) under static pressures of 1-1000 psi provide new insight into the behavior of ener'getic materials in the condensed phase. The connection between the parent molecular structure of nitramines and the tendency to liberate N02, HONO, NO, N20, CH20, HCN, and hydrocarbons is discussed. Many important differences are found between the resul ts of gas phase decomposi tion studies and those herein for the condensed phase which points out the hazards of transferring gas phase notions to the condensed phase.In addition to nitramines, selected correlations for C-N0 2 , O-N02' N-NO, azide, furazan, and furoxan containing compounds, energetic metal complexes, and nitrate salts are presented. The effect of applied pressure and the thermolysis of mixtures are addressed.Various solid phase phenomena are described in the context of energetic mater ials. Some application of these physicochemical phenomena to explosives and propellant ignition and combustion are discussed.

show abstract

Advances in the Chemistry of AliphaticN-Nitrosamines

Cited by 84 publications

References 122 publications

UV Direct Photolysis of N-Nitrosodimethylamine (NDMA): Kinetic and Product Study

UV Direct Photolysis of N-Nitrosodimethylamine (NDMA): Kinetic and Product Study

Qualitative Thin-Layer and High-Performance Liquid Chromatographic Analysis of 1-Substituted Diazen- 1-ium-1,2-diolates on Aminopropyl-Bonded Silica Gel

Structure-Thermolysis Relationships for Energetic Materials

Contact Info

Product

Resources

About