H2SO4O2 AS AN EFFICIENT CATALYST FOR THE PREPARATION OF PHENYLHYDRAZONES AND 2,4-DINITROPHENYLHYDRAZONES UNDER SOLVENT-FREE CONDITIONS[J] . Ali Reza Kiasat,Foad Kazemi,Kazem Nourbakhsh.Phosphorus, Sulfur, and Silicon and the Related Elements . 2004 (3)...
Sulphuric acid immobilized on silica gel (H2SO4-SiO2) as an eco-friendly catalyst for transamidationRasheedS.RaoD. N.ReddyA. S.ShankarR.DasP.RSC ADVANCESRasheed, S.; Rao, D.N.; Reddy, A.S.; Shankar, R.; Das, P. Sulphuric acid immobilized on silica gel (H2SO4-SiO2) as an eco...
As%≤ 0.0001 0.005 - Pb%≤ 0.005 0.002 - Transparency(mm) %≥ 80 50 50 Chromaticity (ml) %≥ 2.0 2.0 2.0 PHYSICAL PROPERTIES Sulfuric acid (alternative spelling sulphuric acid), also known as vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with ...
This product is an extremely reactive compound, and as such, it is used in nickel and copper plating, and as a catalyst in various petroleum refining processes. Finally, ammonium bisulfate is yet another product created when ammonia and sulfuric acid react. It is a white, crystalline solid ...
By simulating the conversion profiles using a range of A/V numbers in Fig. 7 one can clearly see the impact on the SO2 conversion profile, especially at the higher temperatures. H2SO4 poisoning of a catalyst reduces the active sites, which is effectively the same as reducing the A/V ...
A simple system is described, which oxidizes saturated hydrocarbons either in acetonitrile or (less efficiently) in water. The system consists of 50% aqueous hydrogen peroxide as an oxidant, sodium metavanadate, NaVO3, as a catalyst and sulfuric (or oxalic) acid as a co-catalyst. The reactions...
remove the rust from steel and iron it is used as a catalyst to convert cyclohexanone oxime to caprolactam used to make nylon it is used in lead-acid batteries as an electrolyte it is used in making ammonium sulfate it is used in storage batteries faqs 1. what is sulfuric acid used for...
Herein, we report a palladium-catalyzed ortho-alkoxylation of tertiary benzamides. Using Pd(OAc)2 as a catalyst and H2SO4 as an additive, benzamides with various functional groups underwent the alkoxylation reaction with alcohols efficiently.Fang‐Cheng Qiu...
Wood liquefied with H2SO4 as a catalyst had better liquefaction effect than that with HCl; however, the reaction of resin synthesis was hard to control due to its quickly increasing viscosity. Differential scanning calorimetry analysis shows that PF resins prepared from HCl-catalyzed liquefied wood ...
However, because of this tree��s recalcitrance, a suitable pretreatment is necessary. In this paper, the effect of the concentration of H 2 SO 4 as a catalyst for the organosolv pretreatment for this raw material was studied. It was determined that a concentration of 1.1% of H 2 SO...