نتایج جستجو برای: oleum
تعداد نتایج: 596 فیلتر نتایج به سال:
We study the solubility and dispersibility of as-produced and purified HiPco single-walled carbon nanotubes (SWNTs). Variation in specific operating conditions of the HiPco process are found to lead to significant differences in the respective SWNT solubilities in oleum and surfactant suspensions. The diameter distributions of SWNTs dispersed in surfactant solutions are batch-dependent, as evid...
Divalent silver is stabilized in concentrated sulphuric acid and oleums. The formal redox potential of the Ag(II)/Ag(I) redox pair is markedly dependent on the Hammett acidity function and it reaches +2.90 V vs. NHE in 33% oleum thus rivalling E° for the F2/2F(-) redox pair (+2.87 V).
Sir,?I hope the following observation may be of some interest to your esteemed readers : Castor oil is protective and sedative while applied externally, a soothing application when dropped into the inflamed eye, a solvent for homatropine, and decidedly an excellent, mild and simple purgative, and a suitable remedy for getting lid of undigested food causing diarrhoea, a proper and favourite prep...
seem to irritate, and might in that respect be considered a liquid vaseline, but purer. It was especially useful after alkaline baths in psoriasis. In the Practitioner for June there appeared an account by Dr Eoberts of Chester of forty-two cases in which he had employed this oil, to which he gave the name Oleum Deelinae. It appeared to be palliative and soothing. It was cheap, quite odourless,...
The reaction of 4-amino-pyridine and oleum yielded the title hydrated zwitterion, C(5)H(6)N(2)O(3)S·H(2)O. There are two formula units in the asymmetric unit. The H and non-H atoms of both zwitterions lie on a mirror plane except for one sulfonate O atom. The water mol-ecules are also situated on a mirror plane. In the crystal, the zwitterions and water mol-ecules are linked by O-H⋯O and N-H⋯O ...
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