Results 21 to 30 of about 1,733,689 (305)

The effect of salts on the ionisation of gelatin [PDF]

open access: yes, 1930
The effect of the addition of sodium chloride to gelatin solutions is shown from the Donnan relationship to increase the ionisation of the gelatin, the increase produced in acid solutions reaching a maximum at about 1/1000 molar salt concentration.
Thimann, Kenneth V.
core   +3 more sources

Stability studies of ZnO and AlN thin film acoustic wave devices in acid and alkali harsh environments [PDF]

open access: yes, 2020
Surface acoustic wave (SAW) devices based on piezoelectric thin-films such as ZnO and AlN are widely used in sensing, microfluidics and lab-on-a-chip applications.
Duan, Huigao   +9 more
core   +2 more sources

Nanogram amounts of salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 activate the systemic acquired resistance pathway in bean [PDF]

open access: yes, 1999
Root colonization by specific nonpathogenic bacteria can induce a systemic resistance in plants to pathogen infections. In bean, this kind of systemic resistance can be induced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 and depends on the ...
Audenaert, Kris   +5 more
core   +2 more sources

Electrochemical oxidation of oxalic acid and hydrazinium nitrate on platinum in nitric acid media [PDF]

open access: yes, 2012
Several studies in the literature have investigated the electrochemical effects of oxalic acid and hydrazine on various materials in neutral (pH buffered to 7), basic or weakly acidic media (pH 6).
Féraud, Jean-Pierre   +4 more
core   +2 more sources

Ascorbic acid: A useful reductant to avoid oxidation of catecholamines in electrophysiological experiments in vitro? [PDF]

open access: yes, 1990
The actions of the reductant ascorbic acid on rat neocortical neurons in vitro was investigated by means of intracellular recordings. At a concentration (500 μM), which reduced the magnitude of dopamine degradation in oxygen-saturated saline solutions by
Sutor, Bernd, Ten Bruggencate, Gerrit
core   +1 more source

Kinetics and Products of the Acid-Catalyzed Ring-Opening of Atmospherically Relevant Butyl Epoxy Alcohols [PDF]

open access: yes, 2010
Epoxydiols are produced in the gas phase from the photo-oxidation of isoprene in the absence of significant mixing ratios of nitrogen oxides (NO_x). The reactive uptake of these compounds onto acidic aerosols has been shown to produce secondary organic ...
Eddingsaas, Nathan C.   +2 more
core   +2 more sources

Corrosion Inhibition of C38 Steel in 1 M HCl: A Comparative Study of Black Pepper Extract and Its Isolated Piperine

open access: yesInternational Journal of Electrochemical Science, 2010
Corrosion inhibition effect of black pepper (BP) extract and its piperine isolated from BP on corrosion of C38 steel in 1 M HCl solution was investigated by weight loss method. Piperine was isolated by ethanol in yield 6 from ground BP.
M. Dahmani   +4 more
doaj   +1 more source

Deprotonation of salicylic acid and 5-nitrosalicylic acid in aqueous solutions of ethanol [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
The protonation constant values of two hydroxybenzoic acids (salicylic and 5-nitrosalicylic acid) were studied in some water-ethanol solutions using spectrophotometric and potentiometric methods at 25°C and in an ionic strength of 0.1 M sodium ...
Faraji Mohammad   +3 more
doaj   +1 more source

Joint effect of organic acids and inorganic salts on cloud droplet activation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
We have investigated CCN properties of internally mixed particles composed of one organic acid (oxalic acid dihydrate, succinic acid, adipic acid, citric acid, cis-pinonic acid, or Nordic reference fulvic acid) and one inorganic salt (sodium chloride or ...
M. Frosch   +4 more
doaj   +1 more source

Oxygen reduction in acid media: influence of the heat treatment on the FeNPc(1–20 isomer mixture impregnated on carbon blacks and active charcoals [PDF]

open access: yes, 1992
Oxygen reduction with the aid of a number of FeNPc(1–2) impregnated carbon supports in sulphuric acid solutions has been investigated.\ud \ud Loading of the carbon samples amounted to about 10 wt.%.
Biloul, A.   +7 more
core   +2 more sources

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