chromic oxide


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Related to chromic oxide: Chromium oxide

chromic oxide

[¦krō·mik ′äk‚sīd]
(inorganic chemistry)
Cr2O3 A dark green, amorphous powder, forming hexagonal crystals on heating that are insoluble in water or acids; used as a pigment to color glass and ceramic ware and as a catalyst. Also known as chrome green.
References in periodicals archive ?
The determination of chromic oxide in faeces samples by atomic absorption spectrophotometry.
On the acid digestion method for the determination of chromic oxide as an index substance in the study of digestibility of fish feed.
Gross energy content was measured by combustion in an adiabatic bomb calorimeter (Parr Instruments, Moline, IL, USA, model Parr 6200), and chromic oxide was determined using a process involving perchloric and nitric acid digestion followed by atomic absorption spectrometric determination (KIMURA & MILLER, 1957).
Chromic oxide contents in diets and feces were estimated after oxidation with molybdate reagent (Divakaran et al., 2002) using a UV-VIS 2001 Spectrophotometer at 370nm absorbance.
Other raw ingredients of the experimental diets were fishmeal, groundnut cake, corn meal, cassava flour, corn oil, [alpha]-cellulose, chromic oxide, and vitamin and mineral premix.
The site now focuses on producing chromic oxide, which is used to manufacture metallurgical grade chrome alloys for use in jet turbines and pigments for ceramics.
Other major diet ingredients were barley, wheat, soybean meal and canola meal, and chromic oxide was added as an inert marker.
The reference diet and the individual replacement diets had chromic oxide (0.25%) added as an indigestible marker to calculate the ME of an ingredient.
In another technique, the scientists give the cows gel capsules of chromic oxide, a harmless substance that passes undigested through the animals.