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calcium hydroxide
(redirected from Portlandite)

    Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.

calcium hydroxide

White solid, slightly soluble in water. A solution of calcium hydroxide is called limewater and is used in the laboratory to test for the presence of carbon dioxide.

It is manufactured industrially by adding water to calcium oxide (quicklime) in a strongly exothermic reaction:

CaO + H2O → Ca(OH)2

It is used to reduce soil acidity and as a cheap alkali in many industrial processes.
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X-ray diffraction analysis (2) identified the white accretions as Portlandite (calcium dihydroxide).
A conservation conundrum: ephemeral art at the National Museum of ... by Hornbeck, Stephanie E. / African Arts
The studied samples do not contain above detecton limit (>1%) lime [CaO] nor its hydration product portlandite [Ca[(OH).
Mineral composition of Estonian oil shale semi-coke sediments by Motlep, R.; Kirsimae, K.; Talviste, P.; Puura, E.; Jurgenson, J. / Oil Shale
It is so because of quick consumption of portlandite by OSA and C3S consumption because of acceleration of [C.
Suitability of oil shale ash as a constituent of cement by Oymael, S. / Oil Shale
 
 
 
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