from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Relating to or containing chromium, especially with valence 2.
from The Century Dictionary.
- Pertaining to, of the nature of, or containing chromium.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Of, pertaining to, or derived from, chromium, when this element has a valence lower than that in chromic compounds.
- adjective a bluish gray powder, CrO.OH, of weak acid properties and regard as an acid.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective chemistry of, relating to, or containing
chromium, especially in oxidation state2
Sorry, no etymologies found.
He was soon to leave biology for the field of inorganic chemistry, where his early work was on the oxides of iron-group metals and chromium and a study of the chromous salts.
A red precipitate of chromous acetate is formed, which is washed by decantation in water containing carbonic acid.
The blue chromous chloride solution thus obtained is poured into a saturated solution of sodium acetate in an atmosphere of carbonic acid.
In this manner a chromous acetate is obtained perfectly free from zinc.
As but little chromous salt is decomposed by the oxygen such a washing apparatus may serve for many experiments.
The solution of chromous chloride must therefore be freed from the zinc by filtration in the absence of air.
-- The author makes use of a solution of chromous chloride, which he prepares as follows:
It is advisable to use an excess of chromous acetate or an insufficient quantity of hydrochloric acid, so that there may be no free hydrochloric acid in the liquid.
When the current of gas has been passed in for some time, the hydrochloric acid is let enter, which dissolves the chromous acetate, and thus, in the absence of air, produces a solution of blue chromous chloride.
It is filled with dilute hydrochloric acid, and after the expulsion of the air by a current of gas, plentiful quantities of chromous acetate are passed into the bottles.