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Autores: A partir do fascículo 39/9 a revista Química Nova adotou a licença CC-BY. Mais informações a respeito dessa licença podem ser obtidas aqui.

Edição Atual vol. 40, No. 8, 2017, p. 849-969

 

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The Board of Directors of the Sociedade Brasileira de Química-SBQ (publisher of the Química Nova-QN) decided that QN will adopt the full open access format in which authors are required to cover part of the publication costs for their articles. See more...



Artigo de Capa
Quim. Nova 2017, 40(8), 946-951

Papel indicador colorimétrico para detecção de formol em produtos lácteos e produtos de higiene pessoal

Guilherme B. C. Martins; Renata R. Sucupira; Paulo A. Z. Suarez*

We developed a colorimetric indicator paper based on Schiff 's reagent that made possible to successfully detect the presence of formaldehyde in commercial products, such as: detergents, shampoos and conditioners. The developed indicator paper has low cost and can help the supervision of milk products, as a trial test.

http://dx.doi.org/10.21577/0100-4042.20170102

Publicado online: agosto 3, 2017
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Artigos Quim. Nova 2017, 40(8), 849-853

 

Preparation and visible light responsive photocatalytic activity of Fe3O4/Ni-Al-Ce LDH/Bi2WO6 composites

Jiaqi Hao; Ting Qu; Qiufeng Wang; Zhenbo Zhao*


Novel Fe3O4/Ni-Al-Ce LDH/Bi2WO6 composites were prepared through a facile method. The composites showed high efficiency and stability in the decolorization of an organic pollutant; the decolorization rate of MO was 87% within 60 min under visible-light irradiation.

http://dx.doi.org/10.21577/0100-4042.20170062

Publicado online: junho 13, 2017
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Quim. Nova 2017, 40(8), 854-864

 

Propiedades fisicoquímicas de mieles monoflorales de encenillo de la zona altoandina en Boyacá, Colombia

Guillermo Salamanca GrossoI,II,*; Mónica Patricia Osorio TangarifeI; Laura María Reyes MéndezI


Weinmannia tomentosa Don, is a tropical tree of Cunoniaceae family that grows at high Andean and humidity forest zones in Colombia, is known as Encenillo is source of monofloral honey that bears that name. Physicochemical and volatile compounds are evaluated in this research.

http://dx.doi.org/10.21577/0100-4042.20170084

Publicado online: julho 11, 2017
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Quim. Nova 2017, 40(8), 865-870

 

Influência do envelhecimento acelerado em flares magnésio/PTFE/FPM

Humberto Baldessarini PiresI,*; Roberta Jachura RochaI; Koshun IhaI; Ricardo Vieira BindaII; José Atílio Fritz Fidel RoccoI


A H225M Helicopter from Brazilian Air Force deploys conventional flares during a flight.

http://dx.doi.org/10.21577/0100-4042.20170093

Publicado online: julho 19, 2017
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Quim. Nova 2017, 40(8), 871-879

 

Geochemistry of suspended particulate matter in a tropical estuarine system, southeastern Brazil

Sury de M. MonteiroI,*; Fabian SáII; Renato Rodrigues NetoIII


Suspended particulate matter was sampled with a sediment trap (45 µm mesh) installed in estuarine drainage channels. The traps collected enough material to perform geochemical analyses (metals, mineralogy, granulometry) during each season.

http://dx.doi.org/10.21577/0100-4042.20170085

Publicado online: julho 11, 2017
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Quim. Nova 2017, 40(8), 880-884

 

Mathematical model of catalytic processes at modified electrodes

Femila Mercy Rani JosephI,#; Iswarya ThinakaranII; Rajendran LakshmananIII,*


Schematic diagram of modified electrodes. Theoretical model of catalytic processes at modified electrodes are discussed. Mathematical solution of nonlinear reaction diffusion equations were obtained.

http://dx.doi.org/10.21577/0100-4042.20170086

Publicado online: julho 11, 2017
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Quim. Nova 2017, 40(8), 885-889

 

Biodegradacion fungica de poliuretano rígido

Araceli LoredoI,*; Andres ArgüelloII; Raul Rodríguez-HerreraII; Gerardo Gutiérrez-SánchezIII; Alondra EscamillaIV; Cristóbal AguilarII


Three fungal strains were tested as possible polyurethane biodegradation agents. Cultures were carried out in liquid state with minimal mineral medium and polyurethane biodegradation was assed by infrarred and thermogravimetric analyses.

http://dx.doi.org/10.21577/0100-4042.20170094

Publicado online: julho 19, 2017
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Quim. Nova 2017, 40(8), 890-894

 

Perfil dos componentes voláteis produzidos pelo fungo fitopatógeno Albonectria Rigidiuscula em diferentes condições de cultivo

Francisco C. OliveiraI; Francisco G. BarbosaI,*; Jair MafezoliI; Maria da C. F. de OliveiraI; Francisco J. T. GonçalvesII; Francisco C. O. FreireII


VOCs from Albonectria rigidiuscula fungus produced in different culture media were extracted by HS-SPME and analyzed by GC-MS.

http://dx.doi.org/10.21577/0100-4042.20170064

Publicado online: junho 13, 2017
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Quim. Nova 2017, 40(8), 895-901

 

Avaliação de fragmentos de lenhos carbonizados de Araucariaceae por meio de termogravimetria e infravermelho associadas à análise multivariada

Daniela M. de LaraI,II; Laís BrescianiII; Isa Carla OsterkampIII; Maurício HilgemannII; Eduardo EthurII; André JasperIII,V; Marco Flôres FerrãoIV; Dieter UhlV; Simone StülpII,*


Muffle carbonization method for in natura Araucariaceae wood logs using Thermogravimetry, Fourier Transform Infrared Spectroscopy and Multivariate Analysis.

http://dx.doi.org/10.21577/0100-4042.20170095

Publicado online: julho 19, 2017
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Quim. Nova 2017, 40(8), 902-907

 

Facile synthesis, characterization and DFT calculations of 2-acetyl pyridine derivatives

Haroon ur RashidI; Adnan ShahzadII,IV; Zarif GulIII; Ezzat KhanIII,*; Muhammad Naveed UmarIII,#; Muhammad Raza ShahIV; Awal NoorV; Sher Wali KhanVI


Reaction of 2-acetylpyridine with alkyl/aryl halides: An effective approach towards syntheses of 2-acetylpyridine derivatives.

http://dx.doi.org/10.21577/0100-4042.20170087

Publicado online: julho 11, 2017
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Quim. Nova 2017, 40(8), 908-915

 

Peroxidase from soybean meal: obtention, purification and application in reduction of Deoxynivalenol levels

Ana Carla Penteado Feltrin; Milena Ramos Vaz Fontes; Henrique Delgado Kikumoto Gracia; Eliana Badiale-Furlong; Jaqueline Garda-Buffon*


Considering the evolution of environmental processes in the management of agroindustrial residues to reuse them, this application in Deoxynivalenol degradation, develop clean technologies which do not use products that harm the environment.

http://dx.doi.org/10.21577/0100-4042.20170088

Publicado online: julho 11, 2017
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Revisão Quim. Nova 2017, 40(8), 916-931

 

The fungal ability for biobleaching/biopulping/bioremediation of lignin-like compounds of agro-industrial raw material

Ana Maria Queijeiro López*; Amanda Lys dos Santos Silva; Elane Cristina Lourenço dos Santos


A number of fungi can degrade lignocellulosic substrates through a rich enzymatic arsenal and demonstrate potential to mycoremediation.

http://dx.doi.org/10.21577/0100-4042.20170067

Publicado online: junho 13, 2017
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Quim. Nova 2017, 40(8), 932-945

 

Avanços recentes na hidroaminação de compostos insaturados

Luiz F. T. Novaes; Julio C. Pastre*


This review highlights recent examples of hydroamination developments, employing unsaturated compounds (alkenes, alkynes and allenes) and amines, selected applications on total synthesis are also presented.

http://dx.doi.org/10.21577/0100-4042.20170057

Publicado online: maio 16, 2017
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Nota Técnica Quim. Nova 2017, 40(8), 952-956

 

Determinação condutométrica de cloridrato de tetraciclina em formulações farmacêuticas

Enock José A. G. Junior; Jakson S. Roeder; Jonatas G. da Silva*


An alternative simple, precise, rapid and low-cost method for determination of hydrochloride tetracycline in pharmaceutical formulations, based on conductometric titration using silver nitrate as titrant.

http://dx.doi.org/10.21577/0100-4042.20170048

Publicado online: maio 4, 2017
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Educação Quim. Nova 2017, 40(8), 957-962

 

Operação café passado: uma perspectiva didático-pedagógica para o ensino em engenharia química

Crissiê Dossin Zanrosso*; Dirléia dos Santos Lima; Tiele Caprioli Machado; Vanessa Moura de Souza; Luciano Andreatta da Costa


Using the concepts of constructive learning, student interaction and daily experience on the teaching side and introduction to chemical engineering, mass transfer and unit operations on the engineering side we can reach the activity proposed, named "coffee operation".

http://dx.doi.org/10.21577/0100-4042.20170056

Publicado online: maio 16, 2017
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Quim. Nova 2017, 40(8), 963-969

 

Estruturas de fulerenos: estabelecendo interfaces no ensino de matemática e química em nível superior

Thiago H. B. Corrêa*; Joana D'arc da Silva Reis


Exploring the relationship of the geometric properties of fullerenes and establishing a dialogue between the teaching of mathematical concepts and chemical.

http://dx.doi.org/10.21577/0100-4042.20170053

Publicado online: maio 15, 2017
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On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
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