Method for the determination of organic peroxides in organic solutions
AssigneeMerck Patent GmbH
InventorWolfgang Werner
Life of this patent
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Abstract
A peroxide-testing method using a reagent based on Ti(IV) compounds which contains, in a lower aliphatic alcohol having 1-5 C atoms, a compound TiX.sub.4 in which X is Cl or OR with R being an alkyl group having 1-5 C atoms, and where appropriate, up to 35% by weight of an acid which has a pK.sub.a value not exceeding 5. The method is useful for the determination of peroxides in both aqueous and organic solutions since the reagent is miscible with the sample solution to produce a homogeneous phase.
Claims10
A method for determining organic peroxides in organic solutions comprising admixing with a sample consisting essentially of an organic peroxide in an organic solution an amount of a reagent sufficient to effect a qualitative or quantitative determination of peroxides therein, wherein said reagent consists essentially of a solution of an amount of Ti(IV) compound effective to react with peroxides to form a color, said compound having the formula TiX.sub.4, in a C.sub.1-5 alcohol, wherein X is independently Cl or OR, R being a C.sub.1-5 alkyl group, with the proviso that if said Ti(IV) compound is Ti(OR).sub.4 said reagent solution further comprises less than about 35% by weight, relative to the total weight of the reagent solution, of a substantially non-aqueous acid having a pK.sub.a not more than 5, the reagent being miscible with the sample to produce a homogenous phase;
- and determining whether any peroxide is present by correlating any resultant color with a standard.
Dependencies are inferred from the claim text.