acid reaction


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ac·id re·ac·tion

1. any test by which an acid reaction is recognized, such as the change of blue litmus paper to red;
2. an excess of hydrogen ions over hydroxide ions in aqueous solution indicated by a pH value less than 7 (at 22°C). Compare: dissociation constant of water.
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It can be learned from an experiment in the laboratory that, carbonate minerals in natural fractures are dissolved almost thoroughly, the porosity and its connectivity of coal sample increase significantly, and permeability is improved obviously after the acid reaction.
It is on this premise that ferric reducing antioxidant power (FRAP), iron chelating activity, 1,1-diphenyl-2 picrylhydrazyl (DPPH) radical scavenging abilities, 2,2-azinobis-3-ethylbenzo-thiazoline-6-sulphonate (ABTS), lipid peroxidation and thiobarbibutric acid reactions (TBARS) were evaluated for the measurement of total antioxidant activity of pawpaw seed in both freshly harvested and stored pawpaw fruit.
Lipid Peroxidation and Thiobarbituric Acid Reactions. The lipid peroxidation assay was carried out using the modified method of Ohkawa et al.
The acetylsalicylic acid reaction triad of bronchospasm, rhinitis / sinusitis, and nasal polyposis is often accompanied by rash and gastrointestinal distress.
The water/or acid reaction is important when one takes in to account the effects leveled upon polyester elastomers.
These breakdown processes tend to cause an acid reaction, so even if the materials you incorporate into the heap were not especially acidic, the pH balance of the compost tends to be lowered (made more acid).
They are the ones who must go into acid reaction vessels filled with toxic fumes to scour radioactive gypsum scale from filters and walls.
The odor is from the acid reaction (the same acid as in vinegar) that causes the silicone to "cure," that is, skin over and stiffen.
The same analytical method was used as for the analysis of standard acetic acid reaction and it was seen that under the same conditions the acetic acid peak was observed at the same location (Fig 2).
It is because the citric acid reaction was decomposed silica dioxide into the finer particle.
Kinetic behaviour of the malondialdehyde-thiobarbituric acid reaction. Kinetic-fluorimetric determination of malondialdehyde in human serum.
Water can arise from moisture in the rubber and filler as well as from the zinc oxide/stearic acid reaction. This curve gives emphasis to the potential role of this component in the initial stages of vulcanization.