Results 271 to 280 of about 798,208 (316)

The Sn(II) Reduction of Methyl Orange

The Journal of Physical Chemistry, 1959
The reaction between Sn/sup 2+/ and methyl orange was found to be first order in Sn/sup 2+/ and first order in methyl orange in the presence of chloride at all concentrations. The reduction rates of methyl orange for SnCl/sub 2/ complexes were calculated. (C. J. G.)
F. R. Duke, N. C. Peterson
openaire   +1 more source

Surface activity of methyl orange

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1979
The aggregation of methyl orange in aqueous acidic solutions is accelerated by enlarging either the gas–liquid or the glass–liquid interface and occurs heterogeneously.The subsequent surface activity of methyl orange in acidic solutions is confirmed by surface tension measurements.
openaire   +1 more source

The state of aggregation of methyl orange in water

Journal of Solution Chemistry, 1987
The electrical conductances, UV-visible absorbances, and osmotic coefficients of aqueous solutions of methyl orange, sodium 4-(4′-dimethylaminophenyldiazo)-phenylsulfonate, have been measured at 25°C. From the behavior of these quantities as a function of concentration it is concluded that the methyl orange anion is almost completely dimerized above 0 ...
K. L. Kendrick, W. R. Gilkerson
openaire   +1 more source

Determination of Free Chlorine by Methyl Orange

Journal AWWA, 1965
This article discusses the methyl orange test as a satisfactory laboratory and field procedure for determining free and combined chlorine in water samples. All reagents used in the test are stable at room temperature and may be prepared from readily available chemicals. The test may theoretically be used to measure chlorine of any concentration; curves
Frank W. Sollo, Thurston E. Larson
openaire   +1 more source

Adaptation of the methyl orange method for the determination of reserpine

Experientia, 1958
Une methode microcolorimetrique est proposee pour la determination de la reserpine dans les preparations pharmaceutiques et le materiel biologique. La reserpine est extraite des solutions legerement acides avec du dichlorure d'ethyle, puis est melange au methyl orange pour former un complexe dans le solvent organique.
openaire   +2 more sources

Competitive adsorption of methyl orange and ethyl orange by AB-8 resin

Emerging Materials Research, 2017
Electrostatic attraction and hydrophobic interaction play important roles in the competitive adsorption of dyes. pH and ionic strength are two major factors that affect the competitive adsorption of dyes. Therefore, in this paper, the influences of pH and ionic strength on the competitive adsorption of dyes by AB-8 resin were studied comprehensively ...
Yaoqiang Hu, Chaoming Quan, Min Guo, Xiushen Ye, Zhijian Wu   +4 more
openaire   +1 more source

Adsorption and decolorization kinetics of methyl orange by anaerobic sludge

Applied Microbiology and Biotechnology, 2011
Adsorption and decolorization kinetics of methyl orange (MO) by anaerobic sludge in anaerobic sequencing batch reactors were investigated. The anaerobic sludge was found to have a saturated adsorption capacity of 36 ± 1 mg g MLSS(-1) to MO. UV/visible spectrophotometer and high-performance liquid chromatography analytical results indicated that the MO ...
Lei, Yu, Wen-Wei, Li, Michael Hon-Wah, Lam, Han-Qing, Yu   +3 more
openaire   +2 more sources

Acridine Orange—Methyl Green Fluorescent Staining of Nucleoli

Stain Technology, 1981
The staining of nucleoli with the fluorescent dye acridine orange following by counter-staining with methyl green differentially stained nucleoli in both plant and animal cells. The nucleoli fluoresced as bright structures highlighted against the quenched fluorescence of the chromatin. This technique provides a simple and highly reproducible method for
A L, Franklin, W G, Filion
openaire   +2 more sources

Theoretical and experimental investigation of the second hyperpolarizabilities of methyl orange

The Journal of Chemical Physics, 2005
We describe experimental and theoretical studies of the third-order nonlinear optical coefficients of methyl orange solutions under different pH conditions. A combination of semiempirical and ab initio methods was adopted to investigate the most stable geometrical structures possible for this molecule.
J, Del Nero, R E, de Araujo, A S L, Gomes, C P, de Melo   +3 more
openaire   +2 more sources

Evaluation of DPD and Methyl Orange Methods

Journal AWWA, 1966
This article comments on the DPD method for the determination of free chlorine.
openaire   +1 more source