Sulfate effect

AcCl, NaOH, dioxane, Bu4N HSO, 25°, 30 min, 90% yield. Phase-transfer catalysis with tetra-n-butylammionium hydrogen sulfate effects acylation of sterically hindered phenols and selective acylation of a phenol in the presence of an aliphatic secondary alcohol. 

Monod kinetic relationship, 25 898 Monoethanolamine (MEA) physical properties of, 2 123t specifications, 2 132t Monoethanolamine carbonate, 4 812 Monoethanolamine lauryl sulfate, effect of coconut diethanolamide on foaming, 2 453t... 

The hydrolysis of sulfate monoesters has been studied increasingly in relation to sulfate group transfer in vivo. In general, the rate-enhancing effect on the sulfate cleavage is small even with hydroxamate- or imidazole-functionalized cationic micelles which are extremely effective for the hydrolysis of phenyl esters. Recently, Kunitake and Sakamoto (1979a) found that zwitterionic hydroxamate [47] cleaved 2,4-dinitrophenyl sulfate effectively in cationic and... 

Powell, M. F. (1986), Enhanced stability of codeine sulfate Effect of pH, buffer, and temperature on the degradation of codeine in aqueous solution,/. Pharm. Sci.,75, 901. 

Calcium Sulfate Effect of Solution Velocity 0.II g. CaS04/l00 ml. solution... 

Kulle, T.J., L.R.Sauder, F.Shanty, H.D.Kerr, B.P.Farrell, W.R.Miller, and J.H.Milman. 1984. Sulfur dioxide and ammonium sulfate effects on pulmonary function and bronchial reactivity in human subjects. Am. Ind. Hyg. Assoc. J. 45(3) 156—161. 

Laxatives. Example Sodium sulfate effective but obsolete. 

It is reported that ammonium sulfate can produce the negatively charged oligomers through sulfate bridges, which induced the electrostatic interaction with the surfactant and therefore facilitate the formation of zirconia/CTAB mesophase [9]. Since Ti(S04)2 was used as Ti precursor in the present study, a various amounts of (NH4)2S04 was added into the CTAB solution in order to investigate the sulfate effect... 

The disagreement with the results of Ohyoshi et al (3) can be ascribed to the differences in concentrations of Am (III) used in the two works (10 7 M against 10 3 m). The influence of ionic strength on oxidation rate was studied in order to confirm the suggested explanation of phosphate and sulfate effect on the kinetic rates."Figure 4"shows how the Am (III) oxidation rate varies with the ionic strength with and without phosphoric acid. We attempted to adjust these results to the Bronsted equation (7), which correlates the rate constants of a reaction with the reagent... 

Alkylation of pyrimidinethiones is on the sulfur atom (Scheme 75). Alkyl halides, sulfonates, or sulfates effect the reaction in the presence of a base under mild conditions [Pg.187]

Sodium Eauryl Sulfate Effects on Polydimethylsiloxane Absorption of... 

TABLE I. Sulfate effects on Ka, Kp, and p fluorescence parameters (with DCMU) of thylakoid and steady-state oxygen evolution. 

---