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 ?
Israeli "Hot Winter" massacres would effloresce an Arab spring imbued with the soul of resistance.
Rotting wood trim or effloresce (white powdery deposits) on the foundation walls are other signs of seepage.
Oceansize, who are starting to cause a few waves after the release of their debut album Effloresce last year, are currently promoting the release of their next single, live favourite Catalyst, which is out on Monday and also includes the wonderfully titled Women Who Love Men Who Love Drugs.