This series of papers consisting of three communications describes the properties and applications of chlorine dioxide (ClO2) with a special emphasis on its hyper-pure aqueous solution available commercially in Hungary under the trade name SOLUMIUM DENTAL since the end of 2008. This first part of the series discusses the history of chlorine dioxide as a disinfectant, its properties and its fiel...

Internal attack of chromium containing alloys in mixed oxygen-chlorine environments occurs by the formation of pores which penetrate down grain boundaries of the alloys. No internal attack was detected in a binary Fe-20 %Cr alloy at 1200 K in environments containing 2500 ppm C12. The rate of internal attack of alloy 800H in such environments was increased by replacing the O2 in the gas by C02 ....

crosslinked poly(acrylic acid)s were prepared using two types of crosslinker by precipitation polymerization method in a binary organic solvent. n,n’-methylenebisacrylamide (mba) and polyethylene glycol dimethacrylate (pegdma-330) were used as low-molecular weight and long-chain crosslinkers, respectively. the effect of various types of crosslinkers on polymer characteristics (i.e., gel content...

Estrogenic activity was assessed by determining the stimulation of the uterine glycogen response of the immature rat uterus 18 hours after administration of the test compound(1). The potency of active compounds is reported in terms of the minimal subcutaneous dose which will increase glycogen to a level significantly different from control. In a series of 11 polychlorinated biphenyls and terphe...

The chlorine containing deposits in the power plant environment is very harmful in terms of degrading the plant component materials. The cyclic reaction starts by the chlorine gas shorten the life of the plant components. In this study, this cyclic reaction is study in detail, which is required further to find the preventive methods for slow down the degradation of the plant components, especia...

In given work a scientific base compatibility of polymers, produced by industry have been studied revealing thermodynamically regularities polymer mixtures. The most significant thermodynamic the mixtures polyolefin , and heterochained polymers revealed on this bases their developed for creation multicomponent compositional materials with complex operating properties. Key words: polymer-polymer...

The predominant nitrosamine observed in drinking water is N-nitrosodimethylamine (NDMA). NDMA may be formed via a nitrosation mechanism when sufficient nitrite is present and chlorine is primarily in the form of hypochlorous acid (HOCl). However, NDMA is typically not formed in the presence of free chlorine. NDMA may also be formed via a non-nitrosation mechanism in the presence of chloramines....