COBALT • FREE TRANSLATOR.ORG • Definition of Cobalt

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/kˈoʊbˌɔlt/ Listen

noun

Cobalt n.

1.

(Chem.) A tough, lustrous, reddish white metal of the iron group, not easily fusible, and somewhat magnetic. Atomic weight 59.1. Symbol Co. Note: It occurs in nature in combination with arsenic, sulphur, and oxygen, and is obtained from its ores, smaltite, cobaltite, asbolite, etc. Its oxide colors glass or any flux, as borax, a fine blue, and is used in the manufacture of smalt. It is frequently associated with nickel, and both are characteristic ingredients of meteoric iron.

2.

A commercial name of a crude arsenic used as fly poison.

Cobalt bloom. Same as Erythrite.

Cobalt blue, a dark blue pigment consisting of some salt of cobalt, as the phosphate, ignited with alumina; called also cobalt ultramarine, and Thenard's blue.

Cobalt crust, earthy arseniate of cobalt.

Cobalt glance. (Min.) See Cobaltite.

Cobalt green, a pigment consisting essentially of the oxides of cobalt and zinc; called also Rinman's green.

Cobalt yellow (Chem.), a yellow crystalline powder, regarded as a double nitrite of cobalt and potassium.

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Etymology of 'Cobalt'

Collaborative International Dictionary of English 0.48

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"Cobalt" Quotes from Famous Books

... tired with rapid travel, and about the middle of the afternoon the young man unsaddled and picketed the animal near a water-hole. He lay down in the shadow of a cottonwood, flat on his back, face upturned to the deep cobalt sky. Presently the drowse of the afternoon crept over him. The slumberous valley grew hazy to his nodding eyes. The reluctant lids ceased to open and he was ...

— A Texas Ranger • William MacLeod Raine

... instrument. This very curious optical phenomena has been investigated by Mr. Talbot and by Mr. Warrington. Perfectly dry sulphate of copper is white; the slightest moisture turns it blue. Muriate of cobalt is of a pale pink color; a very slight heat, by removing a little moisture, changes it to a green. These are a few instances selected from many which might ...

— The History and Practice of the Art of Photography • Henry H. Snelling

... efforts of concentration, protruded a thick and unsavory tongue. At the loose corners of Jake's mouth flecks of saliva gathered whitely; in the fleering light of the kerosene the shadows on his face were cobalt. The woman's face shone with drops of perspiration that formed slowly and rolled like a flash over her ...

— Mountain Blood - A Novel • Joseph Hergesheimer

... agree that the stone known as sapphire, if ground, could not produce translucent colour at all. The blue which Suger loved, and which is probably the same as that of these Chartres windows, cannot be made out of sapphires. Probably the "materia saphirorum" means cobalt only, but whatever it was, the glassmakers seem to agree that this glass of 1140-50 is the best ever made. M. Paul Durand in his official report of 1881 said that these windows, both artistically and mechanically, were of the highest ...

— Mont-Saint-Michel and Chartres • Henry Adams

... Loyalty Islands, Fortuna, and the New Hebrides group, have great wealth in the matter of resources. New Caledonia, a penal colony, has productive mines of chrome iron ore and copper. It is the source of a considerable supply of nickel and cobalt. A railway to the coast has been built for the ...

— Commercial Geography - A Book for High Schools, Commercial Courses, and Business Colleges • Jacques W. Redway

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