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 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.
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.
It is because the citric acid reaction was decomposed silica dioxide into the finer particle.
Kinetic behaviour of the malondialdehyde-thiobarbituric acid reaction.
Water can arise from moisture in the rubber and filler as well as from the zinc oxide/stearic acid reaction.
Role of prostaglandin endoperoxides in the serum thiobarbituric acid reaction.