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Showing papers on "Chromium(III) oxide published in 1970"


Journal ArticleDOI
TL;DR: In this article, a technique for studying orientation effects on nearly opaque single crystals with laser Raman spectroscopy is described in detail, and the instrument used in these studies is a Spex monochromator.
Abstract: A technique for studying orientation effects on nearly opaque single crystals with laser Raman spectroscopy is described in detail. The instrument used in these studies is a Spex monochromator. The scattering equations derived are applied to a study of iron(III) oxide and chromium(III) oxide.

192 citations


Patent
08 Jul 1970
TL;DR: In this paper, 3,5-dimethyl phenol is obtained by catalytically splitting off methane from isophorone in the gaseous phase, in the presence of a catalyst containing alumina, chromium III oxide and 15-40 mol.
Abstract: 1,197,802. 3,5-Dimethyl phenol. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 28 Sept., 1967 [30 Sept., 1966], No. 44136/67. Heading C2C. 3,5-Dimethyl phenol is obtained by catalytically splitting off methane from isophorone in the gaseous phase, in the presence of a catalyst containing alumina, chromium III oxide and 15-40 mol. per cent of an alkali metal oxide based on the chromium III oxide. The preferred alkali metal oxide is potassium oxide and preferably the process is carried out at a temperature in the range 600-650‹ C.

3 citations