Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Saad Wasif"'
Autor:
Salama B. Salama, Saad Wasif
Publikováno v:
Sultan Qaboos University Journal for Science, Vol 5, Iss 0, Pp 31-53 (2000)
This review summarizes the study of the formation of SO2 -X- , SOCl2 -X- , SOBr2 -X- , SO2 Cl2 -X- complexes (X- = Cl- , Br- , I- , and SCN- ) in pure and mixed solvents of acetonitrile and dimethylsulfoxide over the past 30 years. Spectrometry (290n
Externí odkaz:
https://doaj.org/article/1d74de29df604b699d4485422c585165
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 92:91-100
The pK'a values of five 4-hydroxybenzocyclobuten-1 (2H)ones (I) in aqueous ethanol, dioxane, acetonitrile and dimethylformamide have been determined. The Hammett parameter ρ varies for each phenolic ketone with the aqueous solvent composition, which
Publikováno v:
J. Chem. Soc., Dalton Trans.. :1645-1648
The SeO3–H2SeO4 system has been studied cryoscopically. A maximum freezing point of 18.84 ± 0.01 °C indicated the existence of diselenic acid H2Se2O7. Self-dissociation in diselenic acid is discussed and the presence of triselenic acid is predict
Autor:
Saad Wasif, W.C. Vasudeva
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 34:3153-3157
The reaction between malonic acid and S2O82− has been studied kinetically over the range 60–80°. A free radical mechanism is proposed to account for the products formed. The rate law is deduced from this mechanism.
Publikováno v:
Physical Review. 129:2659-2663
Average recoil ranges have been measured for six fission products formed by reactions of 23-MeV ${\mathrm{H}}^{2}$ with ${\mathrm{U}}^{238}$. The ranges of products from near-symmetric fission (${\mathrm{Cd}}^{115}$ and ${\mathrm{Ag}}^{111}$) are lon
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 34:3159-3169
The reaction of glucose with peroxydisulphate takes place by two paths: Path I is the thermal decomposition of peroxydisulphate and Path II is the oxidation of glucose. Path II results in CC cleavage (∼6 per cent) and terminal group oxidation (
Publikováno v:
J. Chem. Soc., Dalton Trans.. :918-920
The stability constants of SO2·X–, SOCl2·X–, and SO2Cl2·X–(X–= Cl–, Br–, or I–) have been determined spectro-scopically in different mixtures of acetonitrile and dimethyl sulphoxide as solvent. The values (at 25 °C) are not constant
Publikováno v:
Carbohydrate Research. 2:175-177
Autor:
M. M. Nour, Saad Wasif
Publikováno v:
J. Chem. Soc. A. :3024-3026
The electrical conductivity of the water–selenium trioxide system for compositions in the neighbourhood of absolute selenic acid has been investigated at 34·8 and 25°. The results are discussed and compared with those for other inorganic acids.
Autor:
Saad Wasif, S. B. Salama
Publikováno v:
Chemischer Informationsdienst. 5