efflorescence

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efflorescence:

see hydratehydrate
, chemical compound that contains water. A common hydrate is the familiar blue vitriol, a crystalline form of cupric sulfate. Chemically, it is cupric sulfate pentahydrate, CuSO4·5H2O.
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Efflorescence

A deposit, usually white, formed on the surface of a brick, block, or concrete wall; it consists of salts leached from the surface of the wall.

efflorescence

[‚ef·lə′res·əns]
(botany)
The period or process of flowering.
(chemistry)
The property of hydrated crystals to lose water of hydration and crumble when exposed to air.
(materials)
A crust of salts, usually white, that forms on the surface of stone, brick, plaster, or mortar because of leaching of free alkalies from adjacent concrete or mortar.
(mineralogy)
A whitish powder, consisting of one or several minerals produced as an encrustation on the surface of a rock in an arid region. Also known as bloom.

efflorescence

An encrustation of soluble salts, commonly white, deposited on the surface of stone, brick, plaster, or mortar; usually caused by free alkalies leached from mortar or adjacent concrete as moisture moves through it.

efflorescence

1. Chem Geology
a. the process of efflorescing
b. the powdery substance formed as a result of this process, esp on the surface of rocks
2. any skin rash or eruption
References in periodicals archive ?
Thermonatrite effloresces from cracks containing natron, but it shouldn't be climbing on top of things like bugs.
Although optimism is inherent in the human spirit, it rarely effloresces into the kind of frenzy necessary to float a bubble without help from the government.
PLUCK ANY APERCU from the Montaigne-like musings of Chris Marker and it soon effloresces into manifold meanings.
5) The seed of Faith thus effloresces into dogmatic developments, often in new and surprising ways.
Having closed one's senses to the "minute particulars of mankind," this is to say, the mind effloresces in vision.