Kinetic studies on the oxidation of acetaldehyde, propionaldehyde, nand tso-butyraldehyde have been made using diloramine-T as an oxidising agent in an alkaline medium. The reactions followed almost identical kinetics being first order with respect to both aldehyde and chloramine-T. The order with respect to alkali has been found to be almost equal to unity (0.8 to 0.90) . Effect of an increase...

This paper describes results of a detailed literature review of the organic and inorganic by-products that have been identified as being formed in aqueous solution with four of the strong oxidizing/disinfecting agents commonly employed in drinking water treatment. These agents are: chlorine, chlorine dioxide, chloramine, and ozone. Significant findings include the production of similar nonchlor...

Exposure to relatively low concentrations of chlorinated chemicals such as hypochlorite can reduce the performance and ultimately result in the failure of polyamide (PA) reverse osmosis membranes. Whereas the tolerance of PA membranes to chloramine solutions is considerably higher than that of hypochlorite, the presence of some metal ions can potentially catalyze and accelerate degradation reac...

The stereoselective aziridination of a range of cyclic allylic alcohols using two different chloramine salts (4-MeC(6)H(4)SO(2)NClNa, TsNClNa and t-BuSO(2)NClNa, BusNClNa) has been explored. The stereoselectivity of these reactions was highly dependent on the structure of the allylic alcohol and the chloramine salt. Generally, mixtures of cis- and trans-hydroxy aziridines were obtained, in whic...

line tending to appear as a shoulder on the aspartic acid peak. Resolution could be improved, but at the expense of analysis time. To overcome these problems found with the ninhydrin method, we decided to adopt the column conditions of Callahan et al. (4), but to use a different chromogen (6, 7). The column eluate was oxidized with chloramine-T to give a pyrrole that condensed with Ehrlich’s al...

The chloramine-T-Phenol Red procedure affords a potentially very sensitive photometric method for the determination of bromide. However, serious problems (poor precision and high reagent blanks) have been encountered in trials which followed exactly the published procedure. The reason for these difficulties was found to be the high ratio of chloramine-T to Phenol Red which was used. In all prev...

The reaction of free chlorine with tertiary ammonium or amine compounds in aqueous solution was studied by the amperometry at a rotating Pt-disk electrode. The amperometric method can be applied to follow the concentration of free chlorine (c(Cl)) even in the presence of chloramine species. By addition of mono- and dibutylammonium to the solution containing free chlorine, the step-like decrease...