Sample records for trinitrotoluene
from WorldWideScience.org

Sample records 1 - 3 shown.



1

Determinação quantitativa de TNT e HNS por TG e FT-IR/ Quantitative determination of TNT and HNS by TG and FT-IR

Silva, Gilson da; Mattos, Elizabeth da Costa; Dutra, Rita de Cássia Lazzarini; Diniz, Milton Faria; Iha, Koshun
2008-01-01

Resumo em inglês 2,4,6-trinitrotoluene (TNT) is an energetic material that shows scarce crystalline properties that can be improved by addition of 2,2',4,4',6,6'-hexanitrostilbene (HNS) in the crystallization process. HNS is a very important high explosive used in a variety of military, aerospace and industrial formulations owing to its suitable properties. It is an insensitive and thermal stable explosive that can be produced from 2,4,6-trinitrotoluene (TNT). The purpose of this work is (mais) the quantitative determination of HNS and TNT in explosives by thermogravimetric analysis (TG) and Fourier transform infrared spectroscopy (FT-IR).

Scientific Electronic Library Online (Portuguese)

2

Degradação de espécies nitroaromáticas e remediação de efluentes da indústria de explosivos, utilizando-se processos redutivos-oxidativos fundamentados no uso de ferro metálico/ Degradation of nitroaromatic compounds and remediation of residues from the explosive production by reductive-oxidative processes based on zero-valent iron

Cavalotti, Luiz Fernando Rocha; Peralta-Zamora, Patricio; Rodrigues, Marcio Barreto; Paiva, Teresa Cristina Brazil de
2009-01-01

Resumo em inglês In this work the potentiality of reductive-oxidative processes based on zero-valent iron was studied aiming the degradation of nitroaromatic compounds and the remediation of residues from the explosive industry. The reductive process was applied as a continuous treatment system, using steel-wool as zero-valent iron source. The process permitted an almost total degradation of nitrobenzene, nitrophenol, nitrotoluene, dinitrotoluene and trinitrotoluene, probably with generat (mais) ion of the respective amine-derivative. The yellow-water residue, containing soluble trinitrotoluene, was notably modified by the reductive process, a fact that permitted a substantial enhancement of its biodegradability. Furthermore, the subsequent photo-Fenton process allowed TOC removal of about 80%.

Scientific Electronic Library Online (Portuguese)

3

Caracterização de 2,2',4,4',6,6'-hexanitroestilbeno via análises instrumentais/ Characterization of 2,2',4,4',6,6'-hexanitrostilbene by instrumental analysis

Silva, Gilson da; Pinheiro, Glaci Ferreira Martins; Iha, Koshun; Dutra, Rita de Cássia Lazzarini; Takahashi, Marta Ferreira Koyama; Reis, Tiago Balestra dos
2006-07-01

Resumo em inglês 2,2',4,4',6,6'-hexanitrostilbene (HNS) is a very important high explosive that is used in a range of military, aerospace and industrial formulations owing to its suitable properties. It is an insensitive and thermaly stable explosive that can be produced from 2,4,6-trinitrotoluene (TNT). This paper shows the characterization of synthesized HNS by different techniques, such as elementary analysis, differential scanning calorimetry (DSC), thermogravimetric analysis (TG), Fo (mais) urier transform infrared spectroscopy (FT-IR) and through the determination of the heat of combustion in a calorimeter.

Scientific Electronic Library Online (Portuguese)