Glossary entry

English term or phrase:

threshold antiscalant

French translation:

inhibiteur de tartre

Added to glossary by Jean-Christophe Duc
Jul 7, 2014 16:42
9 yrs ago
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English term

threshold antiscalant

English to French Tech/Engineering Chemistry; Chem Sci/Eng Water sampling equipment
Phosphonates are used as chemical additives to function as threshold antiscalants, corrosion inhibitors, chelants, sludge conditioners, deflocculants, dispersants and crystal growth modifiers in various industrial water treatment processes.
References
antiscalant

Proposed translations

-1
46 mins
Selected

inhibiteur de tartre

Antiscalants: they are surface active materials that interfere with precipitation reactions in three primary ways:
Threshold inhibition: it is the ability of an antisclant to keep supersaturated solutions of springly soluble salts.

http://www.lenntech.com/antiscalants.htm

Cristaux d'héxamétaphosphates
Prévient:
La formation de tartre

http://www.ozone.ch/index.php?option=com_content&view=articl...
Peer comment(s):

disagree Daryo : why would "threshold" be added if it doesn't make some difference from other types of "antiscalant"?
9 hrs
Oui, il faut ajouter "à seuil"
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4 KudoZ points awarded for this answer.
21 hrs

inhibiteur d'entartrage par effet de seuil

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Reference comments

10 hrs
Reference:

antiscalant

antiscalant
English[edit]
Noun[edit]
antiscalant (plural antiscalants)

(chemistry) Material preventing or slowing scaling of a surface.  [quotations ▲]
2001, Siobhán Francesca E. Boerlage, Scaling and Particulate Fouling in Membrane Filtration Systems, page 15
Antiscalants inhibit scaling by one or more of the following mechanisms:
--- threshold effect which keeps scalant ions in solution,
--- crystal distortion by absorbing onto the crystal surface at active sites preventing further growth, and finally
--- by dispersancy where a surface charge is added onto the crystals so that they repel one another, reducing their ability to adhere to each other and equipment surfaces, hence, they remain in solution.

[http://en.wiktionary.org/wiki/antiscalant]
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