Glossary entry (derived from question below)
English term or phrase:
chelating agent
Italian translation:
agente chelante
Dec 16, 2009 15:54
14 yrs ago
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English term
chelating agent
GBK
English to Italian
Tech/Engineering
Chemistry; Chem Sci/Eng
Definition from
Alconox, Inc.:
These are negatively charged or oxygen containing molecules that react with positively charged metal ions to form a stable complex. They have multiple locations in the molecule to react with multiple positive charges that may be present on multivalent metal ions that have more than one positive charge on them. An example of a chelating agent is EDTA, ethylene diamine tetraacetic acid. EDTA has four acetic acid groups giving it a potential for four negatively charged acetates to bond with up to four positively charged sites on metal ions with multiple positive charges, such as calcium which has two (2) positive charges associated with it.
Example sentences:
EDTA is a versatile chelating agent. It can form four or six bonds with a metal ion, and it forms chelates with both transition-metal ions and main-group ions. EDTA is frequently used in soaps and detergents, because it forms a complexes with calcium and magnesium ions. (University of Wisconsin)
HIDS shows superior performance as a chelating agent; high thermal stability, high solubility in concentrated alkaline solutions and low corrosion. (NIPPON SHOKUBAI CO.)
The extraction parameters were the type and concentration of chelating agent and the duration of extraction time. All the extractions that involved chelating agents were carried out at pH 7.0. The heavy metal extraction efficiencies of chelating agents were compared to those of HNO3, CaCl2, and deionized water. (ASCE)
Proposed translations
(Italian)
| 4 +4 | agente chelante |
Daniel Frisano
|
| 5 | agente chelante |
Loredana Spadola
|
Change log
Dec 16, 2009 15:07: changed "Kudoz queue" from "In queue" to "Public"
Dec 16, 2009 15:54: changed "Stage" from "Preparation" to "Submission"
Dec 19, 2009 16:54: changed "Stage" from "Submission" to "Completion"
Proposed translations
+4
7 mins
Daniel Frisano
Italy
Italy
Italy
100% human translation, always
Native in: Italian 
Works in: English to Italian, French to Italian, German to Italian, and 14 more.
Related KudoZ points
:
109
Selected
agente chelante
Definition from
DICASM Università di Bologna:
Specie chimica che possiede doppietti elettronici non condivisi mediante i quali può coordinare uno ione metallico.
Example sentences:
L'EDTA è un agente chelante, che forma complessi con molti cationi grazie alla presenza di quattro gruppi carbossilici e di due atomi di azoto. A temperatura ambiente si presenta come una polvere cristallina moderatamente solubile in acqua, cui impartisce una reazione acida. In laboratorio trova impiego nella creazione di molte comuni soluzioni. (MolecularLab)
L'EDTA trova larghissimo impiego in chimica analitica come agente chelante. La presenza di quattro gruppi carbossilici e di due atomi di azoto fa sì che la molecola di EDTA sia in grado di formare complessi stabili con moltissimi cationi. (Wikipedia)
4 KudoZ points awarded for this answer.
24 mins
agente chelante
Definition from
own experience or research:
una sostanza chimica con proprietà complessanti
Example sentences:
l'EDTA è un agente chelante (wikipedia)
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