Results 241 to 250 of about 147,273 (291)

Decolorization of methyl orange by ozonation in combination with ultrasonic irradiation

Journal of Hazardous Materials, 2006
The combination of ultrasound and ozone for the decolorization of azo dye, methyl orange, was studied. The effect of ultrasonic power, ozone gas flow rate, gaseous ozone concentration, initial dye concentration, pH and hydroxyl radical scavenger on the decolorization of methyl orange was investigated.
Hui Zhang, Daobin Zhang
exaly   +3 more sources

The demethylation of m-methyl orange and methyl orange in vivo and in vitro

Biochemical Pharmacology, 1966
Abstract Rats given m -methyl orange and methyl orange intraperitoneally and intravenously excrete the monomethylated and completely demethylated dyes in urine and in bile. Mouse liver microsomes also demethylate methyl orange. The results indicate that factors other than lipid solubility are important in the microsomal metabolism of drugs.
J F, Barrett, P A, Pitt, A J, Ryan, S E, Wright   +3 more
openaire   +2 more sources

Biphoton holographic storage in Methyl Orange and Ethyl Orange dyes

Optics Letters, 1994
Biphoton holograms are recorded by a He-Ne laser in Methyl Orange and Ethyl Orange dyes on exposure to a 514.5-nm argon-ion laser, and the dynamic of holographic recording is reported. The recording utilizes an unusual photochemistry that is due to either to a triplet-triplet transition from a long-lived triplet lower state of the cis configuration or ...
H, Fei, Z, Wei, P, Wu, L, Han, Y, Zhao, Y, Che   +5 more
openaire   +2 more sources

The reaction of methyl orange with bromine

Analytica Chimica Acta, 1973
Abstract The kinetics of the reaction between bromine and methyl orange have been studied in bromide medium and at perchloric acid concentrations of 0.3–0.9 M. A rate equation has been derived and a mechanism is proposed which is in agreement with the experimental results.
C.H. Metters-Tuladhar, J.M. Ottaway
openaire   +1 more source

Fluorescence Spectral Properties of Methyl Orange in Homogeneous Media

Journal of Fluorescence, 2021
The methyl orange [C14H14N3SO3Na], an azo dye exhibited strong emission and large Stokes shift in various solvents, and the largest shift (Δλ = 125.51nm or Δν = 9297cm-1) was obtained in the water. The UV-visible spectra of the dye showed the absorption in the range (33,333 - 20,000) cm-1.
Babita Bisht, Priyank Bhardwaj, Manoj Giri, Sanjay Pant   +3 more
openaire   +2 more sources

On the driving forces for complexation of methyl orange with polycations

Journal of Colloid and Interface Science, 2017
Complexation between Methyl orange and polycations involves multiple interactions dictated by molecular structure, composition (D/P), pH and ionic strength. The effect of ionic strength is considered a generic effect. By step-wise construction of complexes, we expect to gain insight in the nature of interactions and whether displacement by competing ...
Leo F W, Vleugels, Izabela, Domańska, Ilja K, Voets, Remco, Tuinier   +3 more
openaire   +2 more sources

Adsorption of Methyl Orange on Starches

Journal of Food Science, 1991
ABSTRACT Adsorption characteristics of methyl orange were investigated on kudzu, sweet potato, corn, rice, wheat, potato and snake gourd starches. No adsorption of methyl orange, an anionic dye, was observed on potato starch and snake gourd starch because of the presence of phosphate esters. Adsorption isotherms were found to fit both
K. BOKI, T. IMAI, S. OHNO
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