Examples of 'secondary alkyl' in a sentence
Meaning of "secondary alkyl"
secondary alkyl: a term used in organic chemistry to describe a specific type of carbon compound
How to use "secondary alkyl" in a sentence
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secondary alkyl
Hydrophobic secondary alkyl sulfates are also preferred.
The alkyl group may be a primary or secondary alkyl group.
Secondary alkyl sulphate surfactants are also suitable for use herein.
A linear or branched primary or secondary alkyl alcohol is generally preferred.
Another preferred class of anionic surfactants are primary or secondary alkyl sulphates.
A preferred alkyl sulphonate is the secondary alkyl product sold as Hostapur SAS by Hoechst.
This method can be used to produce cobaloximes containing a primary or a secondary alkyl substituent.
Preferably the secondary alkyl group has a total of 4 carbon atoms.
The lower phase contains primarily sodium secondary alkyl sulfate and glycol.
The secondary alkyl sulphate / zeolite crystals can be recovered by filtration or centrifugation.
Alkyl lithium initiators having a secondary alkyl group are preferred.
Secondary alkyl sulfates derived from direct oxidation of paraffins to form secondary alcohols ;.
Preferably R is a secondary alkyl group.
A compound according to claim 1, characterized in that the alkyl amine is a secondary alkyl amine.
Process for the preparation of secondary alkyl sulfate-containing surfactant compositions.
See also
In secondary alkyl groups, the carbon atom of attachment is substituted with two organic radicals.
More preferably, the surfactant is a secondary alkyl sulphonate.
Suitable alkyl halides include secondary alkyl halides, tertiary alkyl halides, propargyl halides and allyl halides.
E1 typically takes place with tertiary alkyl halides, but is possible with some secondary alkyl halides.
A derivative according to claim 9, wherein said secondary alkyl group has a total of four carbon atoms.
Examples of secondary alkyl of 1 to 7 carbon atoms are isopropyl and sec-butyl.
This invention relates to a process for the preparation of secondary alkyl sulfate-containing surfactant compositions.
The aforementioned secondary alkyl sulfates are those prepared by the addition of H2SO4 to olefins.
Thus alkyl groups include primary alkyl groups, secondary alkyl groups, and tertiary alkyl groups.
Secondary alkyl sulfates derived from sulfuric acid addition to alpha - or internal - olefins ;.
Other suitable branched anionic surfactants include secondary alkylsulphonates, secondary alcohol sulphates, and secondary alkyl carboxylates.
The alkyl groups can be linear or branched, e.g. linear or secondary alkyl sulfonates.
The secondary alkyl halide is preferably a secondary alkyl iodide, for example, 2-iodopropane.
In one preferred embodiment, R9 is a secondary alkyl group or a tertiary alkyl group.
Of those hydrocarbon groups, R7 and R8 are preferably alkyl groups, more preferably secondary alkyl groups.
Preferred is when R is a primary or secondary alkyl radical of less than 12 carbon atoms.
The alkyl groups preferably are bulky, i.e., tertiary or secondary alkyl groups.
With primary and secondary alkyl halides, the alternative SN2 reaction occurs.
The use according to claims 1-5, wherein the alkyl amine is a secondary alkyl amine.
Especially preferred secondary alkyl sulfates are the ( 2,3 ) alkyl sulfate surfactants of formulae,.
Preferably, R ¹ is alkyl or aryl ; more preferably, primary or secondary alkyl.
Secondary alkyl systems 15-20 displayed the highest activity of all compounds studied.
The remaining quantity of less than 40 % may be a secondary alkyl and / or a tertiary alkyl group.
Preferred alkyl sulfate surfactants are the non-ethoxylated C12-15 primary and secondary alkyl sulfates.
Most preferred are the non-ethoxylated C12-15 primary and secondary alkyl sulphates, especially sodium lauryl sulphate.
Most preferred are the nonethoxylated C12-15 primary and secondary alkyl sulfates.
Most preferred are the non-ethoxylated C12-15 primary and secondary alkyl sulphates, especially sodium lauryl sulfate.
Other preferred anionic surfactants are the non-ethoxylated C12-15 primary and secondary alkyl sulfates.
Most preferred are the non-ethoxylated C12-15 primary and secondary alkyl sulfates, especially sodium lauryl sulfate.
The R ¹ radicals may be hydrogen or C ₁ ₋ ₄ primary or secondary alkyl.
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An alkyl mercaptane is used as chain modifying agent
Formally they are alkyl esters of nitrous acid
Alkyl nitrates are employed as reagents in organic synthesis
