JBCS



23:08, dom dez 9








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.

vol. 41, No. 3, 2018, p. 243-365

 

Submission procedures for OPEN ACCESS

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...



Artigos Quim. Nova 2018, 41(3), 243-250

 

EXPERIMENTAL AND THEORETICAL ANALYSIS OF AN OXAZINOQUINOXALINE DERIVATIVE FOR CORROSION INHIBITION OF AISI 1018 STEEL

Joherbson Deivid dos S. PereiraI; Jannyely M. NeriI; Denise P. EmerencianoI; Gutto Raffyson S. de FreitasI; Maria Beatriz M. Cansanção FelipeII; Miguel Ângelo F. de SouzaI; Fabrício G. MenezesI; Maria Aparecida M. MacielI,III,*,#


An oxazinoquinoxaline as corrosion inhibitor for mild steel in saline medium.

http://dx.doi.org/10.21577/0100-4042.20170171

Publicado online: dezembro 12, 2017
PDF Informação suplementar
Quim. Nova 2018, 41(3), 251-257

 

IN VITRO PHYTOREMEDIATION OF PERSISTENT ORGANIC POLLUTANTS BY Helianthus annuus L. PLANTS

Marcos V. de AlmeidaI; Sandra R. RissatoII,III*; Mário S. GalhianeII; João R. FernandesII; Paulo C. LodiIII; Marcelo C. de CamposIV


The importance of the in vitro phytoremediation method study to evaluate the process of removal of pollutants.

http://dx.doi.org/10.21577/0100-4042.20170177

Publicado online: dezembro 18, 2017
PDF
Quim. Nova 2018, 41(3), 258-267

 

FOURIER TRANSFORM INFRARED SPECTROSCOPY, THERMOGRAVIMETRIC ANALYSIS, SCANNING ELECTRON MICROSCOPY AS SUPPORTING TOOLS IN QUALITY CONTROL OF ANTIPARASITICS

Michelli dos Santos SilvaI; Karla Loriatto GonringII; Ricky Cássio Santos da SilvaIII; Matheus Cecílio FonsecaIII; Marcella Matos Cordeiro BorgesIII; Otalibio Castiglioni NunesII; Moacir Rossi ForimIV; Keyller Bastos BorgesIII*; Warley de Souza BorgesI,#


A new RP-HPLC method was developed and validated for the simultaneous determination of antiparasitics. In addition, FTIR (experimental and theoretical), TGA, and SEM were useful to identify the raw materials.

http://dx.doi.org/10.21577/0100-4042.20170168

Publicado online: dezembro 11, 2017
PDF Informação suplementar
Quim. Nova 2018, 41(3), 268-272

 

KINETIC BEHAVIOR OF SOME AZO DYES DECOLORIZATION BY VARIATION OF ZINC OXIDE AND TITANIUM DIOXIDE CONCENTRATIONS

Wallace J. C. da Silva; Natalia M. Monezi; Vanildo S. Leão Neto; Keiko Takashima*


Photocatalytic behavior of ZnO (○) and TiO2 (□) in the decolorization rate constant, kobs, of methyl orange (); acid orange 7 (); direct orange34 (); and direct yellow 86 (▬) at 30 ºC.

http://dx.doi.org/10.21577/0100-4042.20170172

Publicado online: dezembro 12, 2017
PDF
Quim. Nova 2018, 41(3), 273-283

 

INFLUENCE OF CARDANOL ENCAPSULATED ON THE PROPERTIES OF POLY(LACTIC ACID) MICROPARTICLES

Jaciene J. F. CardosoI,II; Eduardo Ricci-JúniorIII; Denise GentiliIV; Luciana S. SpinelliI,V; and Elizabete F. LucasI,V,*


Microparticles of PLA100 containing 0.75 wt/v% of PVA with cardanol encapsulated.

http://dx.doi.org/10.21577/0100-4042.20170165

Publicado online: dezembro 4, 2017
PDF
Quim. Nova 2018, 41(3), 284-291

 

ENZYMATIC BIODIESEL SYNTHESIS FROM ACID OIL USING A LIPASE MIXTURE

Kelly C. N. R. PedroI; Juliana M. ParreiraI; Igor N. CorreiaI; Cristiane A. HenriquesI,*; Marta A. P. LangoneI,II


The biodiesel yield doubled using lipase mixture in ethanolysis of acid oil. The blend of Lipozyme TL and Novozym was the best option considering cost and yield. Lipases can be used to produce biodiesel from oils high levels acidity oils.

http://dx.doi.org/10.21577/0100-4042.20170180

Publicado online: dezembro 21, 2017
PDF
Quim. Nova 2018, 41(3), 292-296

 

CHEMICAL CONSTITUENTS DERIVED FROM THE CANARIES MARINE SPONGE Myxilla sp.

Pere Ferriol BunyolaI; Francisco J. Toledo MaranteII,IV,*; Juan Francisco Leon OyolaIII; Ignacio Brouard MartinIII; Rayco Guedes AlonsoIV; José J. Santana RodríguezIV


Marine sponges synthesize several metabolites with potential biological activities. The large pharmaceutical companies have initiated programs for the application of these metabolites in medicine.

http://dx.doi.org/10.21577/0100-4042.20170170

Publicado online: dezembro 11, 2017
PDF Informação suplementar
Quim. Nova 2018, 41(3), 297-301

 

PREPARATIVE SEPARATION OF ISOQUINOLINE ALKALOIDS FROM PHELLODENDRI CORTEX BY PH‑ZONE-REFINING COUNTER-CURRENT CHROMATOGRAPHY

Daijie Wangll; Shanming Tianl,*; Li Cuill; Huijiao Yanll; Xiangyun Songll; Yuguo Liul; Fei Xul; Junjian Mall


Isoquinoline alkaloids with high polarity from Phellodendri Cortex, were successfully separated by PZRCCC with a two-phase solvent system chloroform/methanol/water (4:2:2, v/v).

http://dx.doi.org/10.21577/0100-4042.20170184

Publicado online: janeiro 18, 2018
PDF
Quim. Nova 2018, 41(3), 302-309

 

URSOLIC ACID AND CIS-TILIROSIDE PRODUCED BY Merremia tomentosa AFFECT OVIPOSITION OF Leucoptera coffeella ON COFFEE PLANTS

Helvécio M. Santos JúniorI; Karina C. LopesI; Dejane S. AlvesII,#; Geraldo A. CarvalhoII; Denilson F. OliveiraI,*


Oviposition of Leucoptera coffeella was prevented by the extract of Merremia tomentosa and two of its components, ursolic acid and cis-tiliroside. In silico studies suggest that these substances act against the insect by inhibiting the enzymes glycogen phosphorylase and xanthine dehydrogenase.

http://dx.doi.org/10.21577/0100-4042.20170185

Publicado online: janeiro 18, 2018
PDF Informação suplementar
Quim. Nova 2018, 41(3), 310-314

 

EMPREGO DE QUÍMICA COMPUTACIONAL NA VERIFICAÇÃO E VALIDAÇÃO DA PRESSÃO DE DETONAÇÃO DE EXPLOSIVO PLÁSTICO-PBX

Fausto B. MendonçaI; Rene F. B. GonçalvesI; Girum S. UrgessaII; Koshun IhaI; Marcela DominguesI; José A. F. F. RoccoI,*


Molecular representation of solid HMX unit cell, with molecules distributed inside the boundaries, prior to the material ignition.

http://dx.doi.org/10.21577/0100-4042.20170169

Publicado online: dezembro 11, 2017
PDF Informação suplementar
Revisão Quim. Nova 2018, 41(3), 315-325

 

A POLIANILINA NO CENÁRIO AMBIENTAL: UMA ABORGAGEM SOBRE FOTOCATÁLISE HETEROGÊNEA

Vanessa M. M. VargasI, Carla DalmolinI, Sérgio H. PezzinI, Marcela Mohallem OliveiraII e Patricio Peralta-ZamoraIII,*


Since 1991 sensitized photocatalysts has been a hot topic in many research fields, especially in heterogeneous photocatalysis. In the last five years, conducting polymers has been consolidated as a novel class of photosensitizers.

http://dx.doi.org/10.21577/0100-4042.20170175

Publicado online: dezembro 18, 2017
PDF
Quim. Nova 2018, 41(3), 326-339

 

FOTOELETROCATÁLISE EM SEMICONDUTORES: DOS PRINCÍPIOS BÁSICOS ATÉ SUA CONFORMAÇÃO À NANOESCALA

Alexandre L. B. Baccaro; Ivano G. R. Gutz*


Comparison between monocrystal n-dopped and nanoparticle semiconductor electrodes and their respective band diagrams both under a positive biasing potential (VBias > VFB). The model considered for the space-charge layer (SCL) is the depletion layer and the Flat Band.

http://dx.doi.org/10.21577/0100-4042.20170174

Publicado online: dezembro 13, 2017
PDF
Nota Técnica Quim. Nova 2018, 41(3), 340-344

 

USO DE PALHA DE AÇO COMERCIAL PARA O TRATAMENTO DE EFLUENTES CONTENDO CROMO HEXAVALENTE PROVENIENTES DE PROCESSOS DE ELETROCOLORAÇÃO DE AÇOS INOXIDÁVEIS

Kallyni IrikuraI; Marcelo Braga Bueno GuerraII; Nerilso BocchiI,*; Romeu Cardozo Rocha-FilhoI; Elaine KikutiIII; Sonia Regina BiaggioI


Treatment of a Cr(VI) residual solution with a given amount of commercial steel wool pads followed by chemical precipitation with NaOH up to pH 10-11 and separation by filtration under reduced pressure. The produced solid residue is predominantly Cr(OH)3 and Fe(OH)3.

http://dx.doi.org/10.21577/0100-4042.20170150

Publicado online: novembro 8, 2017
PDF
Educação Quim. Nova 2018, 41(3), 345-354

 

EXPERIMENTO DIDÁTICO DE QUIMIOMETRIA PARA O MAPEAMENTO DE PELLETS FARMACÊUTICOS UTILIZANDO ESPECTROSCOPIA DE IMAGEM NA REGIÃO DO INFRAVERMELHO PRÓXIMO E RESOLUÇÃO MULTIVARIADA DE CURVAS COM MÍNIMOS QUADRADOS ALTERNANTES: UM TUTORIAL, PARTE IV

José Augusto Da-Col; Willian Francisco Cordeiro Dantas; Ronei Jesus Poppi*


Didactic experiment based on the combination of Near Infrared Spectroscopy and Multivariate Curve Resolution to create a chemical imaging of pharmaceutical pellets to obtained the special distribution and spectral profile of each component in the system.

http://dx.doi.org/10.21577/0100-4042.20170149

Publicado online: novembro 8, 2017
PDF Informação suplementar
Quim. Nova 2018, 41(3), 355-365

 

EXTRAÇÃO DO R-(+)-LIMONENO A PARTIR DAS CASCAS DE LARANJA: AVALIAÇÃO E OTIMIZAÇÃO DA VERDURA DOS PROCESSOS DE EXTRAÇÃO TRADICIONAIS

Tânia C. M. PiresI; Maria Gabriela T. C. Ribeiro*,I; Adélio A. S. C. MachadoII


For extraction of limonene, the steam distillation presents better overall greenness (green star metric) and higher throughput, but some other specific metrics indicate that extraction by solvents is greener.

http://dx.doi.org/10.21577/0100-4042.20170139

Publicado online: outubro 27, 2017
PDF Informação suplementar

On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
Química Nova
Publicações da Sociedade Brasileira de Química
Caixa Postal: 26037 05513-970 São Paulo - SP
Tel/Fax: +55.11.3032.2299/+55.11.3814.3602
Free access

GN1