Molecular structure and vibrational spectra of phenolphthalein and its dianion. K. K. Kunimoto,H. Sugiura,T. Kato,H. Senda,A. Kuwae,K. Hanai. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy . 2001Kunimoto K.-K., Sugiura H., Kato T., Senda H., Kuwae A. and Hanai ...
Assay for citric acid— Transfer 15mLof Oral Solution,accurately measured,to a 250-mLvolumetric flask,dilute with water to volume,and mix.Pipet 5mLof this solution into a suitable flask,add 25mLof water and 5drops of phenolphthalein TS,and titrate with 0.02Nsodium hydroxide VSto a pink ...
The molecular structure of the growth step edge and surface layer on the (101) faces of tetragonal thaumatin crystals were resolved. It was shown that, although the growth step height corresponds to the unit cell containing eight ... A Mcpherson - APS March Meeting Abstracts 被引量: 1发表:...
of polymeric precursor of phenolphthalein-based cardo poly(arylene ether ketone) (PEK-C). The evolution of the microstructural texture and ultramicroporous structure and gas separation performance of the CMS membrane were characterized via TG-MS, FT-IR, XRD, TEM, CO2 ...
To this, 0.5 mL of the enzyme suspension solution was added, and the incubation continued for another 20 min at the same temperature. The reaction was terminated by the addition of 1.5 mL of 95% ethanol and a drop of 1% phenolphthalein indicator. Followed by titration with 0.05 mol/L NaOH...
We report a detailed investigation of the vibrational modes, structure, and dynamics of glutathione (GSH) solutions using ultrasonic relaxation spectroscopy, FT-IR vibrational spectroscopy, and electronic absorption measurements. The experimental data were analyzed using density functional theory (DFT) and ...
Acidity or alkalinity—To a solution of 5.0g in 50mLof carbon dioxide–free water add 3drops of phenolphthalein TS:no pink color is produced.Then add 0.30mLof 0.020Nsodium hydroxide:a pink color is produced. Loss on dryingá731ñ—Dry it at 105 ...
Ozone (O3) - Ozone is an unstable triatomic molecule of oxygen with the chemical formula O3. Visit BYJU'S to understand the properties, structure and its uses.
Such a reagent pad may be formed from any material through which the test sample is capable of passing, such as glass fibers. An “indicator” refers to any of various substances, such as litmus, phenolphthalein, or bromothymol blue, Potassium I-hydroxy-4-[1-(2-hydroxyethylsulphonyl)...
The equilibrium constant of beta-cyclodextrin-phenolphthalein complex; Influence of temperature and tetrahydrofuran addition. J Pharm Biomed Anal 1998; 18, 165–170. CrossRef Zarzycki PK and Lamparczyk H. Evidences for temperature-dependent mechanism of host–guest complexation. Chromatographia 1998; ...