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METHYLENE [1 record]
Record 1 - internal organization data 2004-03-10
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- methylene
1, record 1, English, methylene
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A hypothetical radical of the hydrocarbons (CH2). 2, record 1, English, - methylene
Record number: 1, Textual support number: 1 OBS
Unknown in the free state, but occurring in many compounds, as "methylene hydrate", etc. 2, record 1, English, - methylene
Record number: 1, Textual support number: 2 OBS
Not to be confused with "carbene" (q.v.), a generic term as compared with "methylene." 3, record 1, English, - methylene
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- méthylène
1, record 1, French, m%C3%A9thyl%C3%A8ne
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Radical bivalent CH2 dérivé du méthane. 2, record 1, French, - m%C3%A9thyl%C3%A8ne
Record number: 1, Textual support number: 1 CONT
Chlorure de méthylène. 2, record 1, French, - m%C3%A9thyl%C3%A8ne
Record number: 1, Textual support number: 1 OBS
Aussi employé couramment pour désigner l'alcool méthylique. 3, record 1, French, - m%C3%A9thyl%C3%A8ne
Record number: 1, Textual support number: 2 OBS
Ne pas confondre avec «carbène» (voir cette autre fiche), qui est un générique par rapport à «méthylène», comme l'illustre l'exemple qui suit. 3, record 1, French, - m%C3%A9thyl%C3%A8ne
Record number: 1, Textual support number: 2 CONT
carbène : Intermédiaire de réaction de formule H2C. [Par] exemple le méthylène, ou les dihalocarbènes, qui interviennent dans certaines synthèses. 4, record 1, French, - m%C3%A9thyl%C3%A8ne
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
Record 1, Main entry term, Spanish
- metileno
1, record 1, Spanish, metileno
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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