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%ما هو (من)٪ 1 - تعريف
UNIVALENT GROUP DERIVED FROM ALKANES BY REMOVAL OF A HYDROGEN ATOM FROM ANY CARBON ATOM –CₙH₂ₙ₊₁
Alkyl; Tertiary alkyl; Secondary alkyl; Cycloalkyl; Primary alkyl; Alkyl groups; Hexyl; Heptyl; Octyl; Nonyl; Undecyl; Alkyl chain; Decyl; Dodecyl; Cycloalkyl group
alkyl
['alk??l, -k?l]
¦ noun [as modifier] Chemistry of or denoting a hydrocarbon radical derived from an alkane by removal of a hydrogen atom.
Origin
C19: Ger., from Alkohol 'alcohol' + -yl.
Octyl
·noun A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol.
Undecyl
·noun The radical regarded as characteristic of undecylic acid.
ويكيبيديا
Alkyl group
In organic chemistry, an alkyl group is an alkane missing one hydrogen. The term alkyl is intentionally unspecific to include many possible substitutions. An acyclic alkyl has the general formula of CnH2n+1. A cycloalkyl group is derived from a cycloalkane by removal of a hydrogen atom from a ring and has the general formula CnH2n−1. Typically an alkyl is a part of a larger molecule. In structural formulae, the symbol R is used to designate a generic (unspecified) alkyl group. The smallest alkyl group is methyl, with the formula CH3.
أمثلة من مجموعة نصية لـ٪ 1
1. Raid Qusti, Arab News RIYADH, 15 November 2006 — Al–Zamil Group announced yesterday that it had signed an agreement with Chemutra Corporation to jointly build a world–scale metal–alkyl–manufacturing facility at the Jubail Industrial City.
2. The Chemutra–Al–Zamil joint venture would license Chemutra’s proprietary technology to serve as the sales and marketing arm of Chemutra’s aluminum alkyl in the Kingdom and other Gulf countries.
3. Meanwhile, Pakistan has agreed to consider India’s request to lift the barrier to diesel and petrochemicals trade, Indian Petroleum Minister Mani Shankar Aiyar said here Tuesday «(Pakistan Prime Minister) Shaukat Aziz has conveyed that they would consider India’s request to remove diesel and Linear Alkyl Benzene (LAB) from the negative list at the next review meeting,» said Aiyar.