Results 71 to 80 of about 1,987 (209)
Studia Universitatis Babes-Bolyai Chemia, 2017 This paper focuses on the obtaining of carboxylate precursors through the redox reaction of cobalt nitrate and ethylene glycol, in different stoechiometric ratios, as well as the decomposition of precursors into cobalt oxides.
Thomas DIPPONG +2 more
doaj +1 more source
, 2015 The microbial activity in a Rhodic eutrudox (R), a Typic eutrudox (V) and a Quartzipsamment (Q) was monitored by respirometric and calorimetric methods.
Freitas, SS, Critter, SAM, Airoldi, C
core +1 more source
The Determination of Sodium Silicate Composition Using ATR FT-IR
, 2016 A procedure that measures both the silica concentration and the ratio of silica to alkali content of the commercially important sodium silicate solutions using an ATR FT-IR spectrophotomer has been developed. The accuracy and precision have been found to
Maria Angelella (1365660) +4 more
core +3 more sources
Ultrasound assisted miniemulsion polymerization to prepare poly(urea-urethane) nanoparticles
Polímeros, 2018 Recently, the physical and chemical effects of ultrasound in polymeric materials synthesis have attracted great attention. This work presents the synthesis of novel polymeric materials by polymerization of isophorone diisocyanate with different polyols ...
André Eliezer Polloni +4 more
doaj +1 more source
Exchangeable aluminum evaluation in acid soils
Scientia Agricola, 2003 One of the main factors limiting agricultural production in tropical climate regions is mainly related to the presence of exchangeable aluminum (Al3+) in highly weathered acid soils.
Cassio Hamilton Abreu Jr. +2 more
doaj
Interaction Studies of Sodium N-Dodecyl Sulphate and Protons to Nistone H1 [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1989 The relationship between the binding of sodium n-dodecyl sulphate and protons to histone H1 has been investigated by equilibrium dialysis and titrimetry. The data cover the pH range 3.2-10 and surfactant concentrations up to 3.0×10-3 mol dm-3.
A.A. Moosavi Movahedi, M Godarzi
doaj
, 1998 The study aimed to determine the molecular weights of carboxy-terminated styrene-methacrylonitrile homo-and random copolymers, which were previously prepared by the free radical chain transfer process, by titrimetry.
Espino, Julie-Anne Q.
core
The Chemical Composition of the Surface Waters of the Sula River [PDF]
, 2018 У роботі наведені результати сезонних спостережень за основними гідрохімічними показниками поверхневих вод. Методами титриметрії, йонометрії, фотоколориметрії встановлено катіон-аніонний склад води.The results of seasonal observations on the main ...
Цибульняк І. В. +3 more
core +1 more source
Journal of Advanced Pharmaceutical Technology & Research, 2010 In titrimetric analysis costlier organic solvents are more often employed to solubilize the poorly water-soluble drugs. Volatility and pollution are drawbacks of such solvents.
R K Maheshwari, Shruti Moondra
doaj +2 more sources
Simple and Rapid Methods for the Analysis of Captopril in Dosage Forms
E-Journal of Chemistry, 2007 Two indirect methods are described for the micro determination of captopril using hexacyanoferrate (III) as reagent. The reaction used for titrimetry proceeds at room temperature and will be complete in 10 minute with a stoichiometry of 1:1 with respect ...
H. Chandru, A. C. Sharada
doaj +1 more source