Two factors are involved in a systematization of the form01 titration. The first of these factors is the titration constant of the amino acid in formaldehyde solution. This aspect has been discussed in a previous paper (4) for certain of the monoamino acids. The basic amino acids will be treated later. The second factor is the behavior of the solvent on the addition of strong alkali, just as th...

In this paper, two novel alkali clearable disperse dyes were synthesized. 4-flourosulfonyl aniline and 2-nitro-4-flourosulfonyl aniline were utilized as the diazo components and 2- naphthol as the coupling component. The DSC, FTIR, 1HNMR and UV-Vis analyses were used to characterize the synthesized intermediates and dyes. The synthesized dyes were used to dye polyester fibers and their dyeing p...

Synthesis of a large number of simple and complex polymetaphosphate glasses of alkali metals with the general formulae (MXM1 -X)P03)fl and (MM_12PO3) has been described, where M and M' = Li,Na, K, Rb or Cs; M" = Be, Mg,Ca,Sr,Ba,Zn,Cd,Pb,CuorNi;andx = 1,,4or4.Thepreparations have been carried out by heating alkali dihydrogen phosphate, metal oxide (or carbonate) and diammonium hydrogen phosphate...

A method is described to obtain multicollision dissociation threshold (MCDT) values. These values provide relative reaction thresholds for dissociation in the three major gas-phase fragmentation reactions of oligosaccharides complexed to alkali metal ions. The quasimolecular ions are produced using matrix-assisted laser desorption/ionization Fourier transform mass spectrometry. The MCDTs for al...

We have devised a technique for simultaneously measuring the acid secretion into the stomach and alkali into the duodenum by in situ titration using a modification of the technique of Fordtran and Walsh. Using this technique, the results of acid and alkali secretion measured simultaneously were identical with those obtained using the conventional aspiration method on separate days. In response ...

Soil salinization is an important agriculture-related environmental problem. Alkali stress and salt stress strongly influence the metabolic balance in plants. Salt and alkali stresses exert varied effects on old and young tissues, which display different adaptive strategies. In this study, we used cotton (Gossypium hirsutum L.) plants as experimental material to investigate whether alkali stres...

Epidemiological studies have indicated that smoking is a pivotal risk factor for the progression of several chronic diseases. Nicotine, the addictive component of cigarettes, has powerful pathophysiological properties in the body. Although the effects of cigarette smoking on corneal re-epithelialization have been studied, the effects of nicotine on corneal wound healing-related neovascularizati...

Glass, in contrary to crystals, lacks long-range translation symmetry so that standard experimental scattering methods such as X-ray or neutron scattering must be improved and/or sophisticated both theoretically and experimentally to obtain comparable results. However, scattering experiments are not able to provide 3D image of the structure but only its 1D projection resulting in the so-called ...

We recognize eight types of ferroan granitoid that can be distinguished on the basis of major element chemistry.These include alkalic granitoids that may be metaluminous or peralkaline, alkali-calcic granitoids that may be metaluminous, peraluminous or peralkaline, calc-alkalic granitoids that may be metaluminous or peraluminous, and rare calcic ferroan granitoids. These granitoids may form by ...