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Qué (quién) es EFFLORESCENCE - definición

MIGRATION OF A SALT TO THE SURFACE OF A POROUS MATERIAL

Efflorescent; Effloresce; Efflorescing

efflorescence

n.

1.

Flowering, bloom, blossoming.

2.

Flowering-time, time of blossoming, period of bloom.

3.

Pulverulence (of the surface).

Efflorescence

The appearance of a dry salt upon the walls of a vessel containing a solution above the normal water-line from evaporation of a liquid. It appears in battery jars and in battery carbons, in the latter interfering with the electrical connections, and oxidizing or rusting them. (See Creeping.)

Efflorescence

·noun The powder or crust thus formed.

II. Efflorescence ·noun Flowering, or state of flowering; the blooming of flowers; blowth.

III. Efflorescence ·noun A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, ·etc.

IV. Efflorescence ·noun The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, ·etc.

Wikipedia

Efflorescence

In chemistry, efflorescence (which means "to flower out" in French) is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process involves the dissolving of an internally held salt in water, or occasionally in another solvent. The water, with the salt now held in solution, migrates to the surface, then evaporates, leaving a coating of the salt.

In what has been described as "primary efflorescence", the water is the invader and the salt was already present internally, and a reverse process, where the salt is originally present externally and is then carried inside in solution, is referred to as "secondary efflorescence".

Efflorescences can occur in natural and built environments. On porous construction materials it may present a cosmetic outer problem only (primary efflorescence causing staining), but can sometimes indicate internal structural weakness (migration/degradation of component materials). Efflorescence may clog the pores of porous materials, resulting in the destruction of those materials by internal water pressure, as seen in the spalling of brick.

https://en.wikipedia.org/wiki/Efflorescence

Ejemplos de uso de EFFLORESCENCE

1. The era of Songun is an era of the all–round efflorescence and development of the country.

2. The development and efflorescence of Juche–oriented musical art which has reached a high plane is unthinkable apart from the wise leadership of Kim Jong Il.

3. The Korean people, full of national pride and glory of being led by the great leader, will usher in an all–round efflorescence of national prosperity this year.

4. Too cold for liquid water and for life as we know it, it is still a chemist‘s paradise, rioting with the kind of carbon–based molecules that suggest that this is a universe primed for life‘s efflorescence.

5. Article continues What we now think of as the western‘s late golden age in the 1'70s was, in fact, the spectacular death spasm – and, no less important, a tremendous creative efflorescence – of a genre that television had worn out.