References in periodicals archive ?
Sawamura, "Spectrophotometric assay for superoxide dismutase based on tetrazolium salt 3,-{1-[(phenylamino)-carbonyl]-3, 4-tetrazolium}-bis (4methoxy-6-nitro) benzenesulfonic acid hydrate reduction by xanthine-xanthine oxidase," Analytical Biochemistry, vol.
Firstly, the reaction of 4-aminobenzenesulfonic acid and isoamyl nitrite in water was conducted to generate in situ benzenesulfonic acid containing aryl radical.
A mixture of conjugated fatty acids (CFA) derived from sunflower oil, xylene, benzoyl peroxide (BP), methyl methacrylate (MMA), butyl acrylate (BA), acrylic acid (AA), dodecyl benzenesulfonic acid sodium salt (DBSA), fatty alcohol ether sulfosuccinate disodium salt (FAES), ethoxylated alkyl sulfate, sodium persulfate, dibutyltin oxide were kindly supplied by Resiquimica--Resinas Quimicas, S.A.
Following the existing information on emulsion polymerization involving a linolenic acid derivative, (30) the surfactant was replaced by a combination of dodecyl benzenesulfonic acid sodium salt--DBSA--and fatty alcohol ether sulfosuccinate disodium salt--FAES.
Table 1: Characterization of acrylic latex formulations Reference Latex A Latex B latex Monomers Methyl methacrylate (wt%) 19.1 14.1 14.1 Butyl acrylate (wt%) 19.1 14.1 14.1 Acrylic acid (wt%) 2.3 2.3 2.3 AcFAD (wt%) 0.0 10 10 Surfactants Ethoxylated alkyl sulfate (wt%) 2.0 2.0 0.0 Dodecyl benzenesulfonic acid sodium 0.0 0.0 1.0 salt (wt%) Fatty alcohol ether sulfosuccinate 0.0 0.0 1.0 disodium salt (FAES) (wt%) Others Sodium persulfate, additives 1.5 1.5 1.5 (biocides, antifoaming, pH control agent) (wt%) Water (wt%) 56.0 56.0 56.0 Theoretical solid content (%) 44.0 44.0 44.0 Viscosity (mPa s) 32.5 26.4 59.1 Solids contents (%) 42.6 37.3 42.4 Filtration residue (%) 1.1 2.6 1.3 MFT ([degrees]C) 15.0 6.5 -3.3
Sawamura, "Spectrophotometric assay for superoxide dismutase based on tetrazolium salt 3,-1-(phenylamino)-carbonyl-3, 4-tetrazolium]bis(4-methoxy-6-nitro)- benzenesulfonic acid hydrate reduction by xanthine-xanthine oxidase," Analytical Biochemistry, vol.
The three distinct units that we considered are benzenesulfonic acid, azo group, and salicylic acid.
Looking carefully at the benzenesulfonic acid, we observe that it acts as a poor donor in the case of H1-[ACY.sup.2-] and H3[ACY.sup.2-].
(i) H1-[ACY.sup.2-]: there is a slight push-pull effect from the benzenesulfonic acid to the azo bridge and the salicylic acid, and the electron density on the peripheral oxygen atom is high.
Cleaning products contain things such as benzenesulfonic acid, lauramine oxide, sodium hydroxide and sodium hypochlorite, which can cause skin reactions, breathing problems, gastrointestinal irritation and other health problems.
3'-[1-[(phenylamino)-carbonyl]-3,4-tetrazolium]-bis(4-methoxy-6-nitro)benzenesulfonic acid hydrate, and the source of the XTT [sodium 3'-[1-(phenylamino)-carbony]-3,4-tetrazolium]-bis(4-methoxy-6-nitro) benzenesulfonic acid hydrate] kit was Roche Dignostics GmbH (Germany).
Biodegradation products of Acid Orange 7 and Disperse Orange 3, by white rot fungus, Pleurotus ostreatus, were identified as 4-hydroxybenzenesulfonic acid, benzenesulfonic acid, 1,2-naphthoquinone, 4-nitrophenol, nitrobenzene, 4-nitroanisole, and 4-nitroaniline.