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.
The pilot appraisal of acid fracturing of coalbed methane reservoir in southeast Qinshui Basin, China
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 influence of storage of pawpaw carica papaya fruit on the bioactive components, antioxidative properties and inhibition of [Fe.sup.2+]-induced lipid peroxidation of water-extracts of pawpaw seed
Lipid Peroxidation and Thiobarbituric Acid Reactions. The lipid peroxidation assay was carried out using the modified method of Ohkawa et al.
Anticholinesterase and antioxidative properties of aqueous extract of Cola acuminata seed in vitro
The acetylsalicylic acid reaction triad of bronchospasm, rhinitis / sinusitis, and nasal polyposis is often accompanied by rash and gastrointestinal distress.
Aspirin Can Be Dangerous in Asthmatics--So Ask Patients bout It
The water/or acid reaction is important when one takes in to account the effects leveled upon polyester elastomers.
A new liquid carbodiimide hydrolytic stabilizer for ester polyurethanes and TPUs
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).
Your Garden: Pippa Greenwood's gardening column
They are the ones who must go into acid reaction vessels filled with toxic fumes to scour radioactive gypsum scale from filters and walls.
Occidental Exposures: Gary's Story
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.
Making a good caulk joint
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).
Utilization of Carbon dioxide (CO2) for the Production of Ethanol
It is because the citric acid reaction was decomposed silica dioxide into the finer particle.
Extraction of silica from palm ashvia citric acid leaching treatment
Kinetic behaviour of the malondialdehyde-thiobarbituric acid reaction. Kinetic-fluorimetric determination of malondialdehyde in human serum.
Rapid fluorimetric method to detect total plasma malondialdehyde with mild derivatization conditions
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.
Recent developments in NR curing systems

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