Observations on the Flight, Wing Movements and Wing Structure of Male Priacma serrata (Lee.) (Coleoptera: Cupedidae)

1958 ◽  
Vol 90 (6) ◽  
pp. 339-347 ◽  
Author(s):  
D. M. Atkins
Keyword(s):  
Aqueous Solution ◽  
Sodium Hypochlorite ◽  
Sodium Chlorate ◽  
Flight Behaviour ◽  
Laboratory Conditions ◽  
Strong Attraction ◽  
Cent Sodium ◽  
Wing Structure

During May, 1957 near Lumby, B.C., there was a reoccurrence of the gregarious flight behaviour of Priacma serrata males observed the preceding year (Atkins, 1957). Once more these beetles exhibited a strong attraction to “Perfex” laundry bleach, which is an aqueous solution containing 5-5.5 per cent sodium hypochlorite and 4.3 per cent sodium chlorate. They swarmed around the bleach-treated articles every fair day from the 5th of May until the first week of June. This situation presented an ideal opportunity to study certain aspects of the behaviour of this strange insect and accordingly observations were made on the beetles' flight both in the field and under laboratory conditions.

Prometryne Oxidation by Sodium Hypochlorite in Aqueous Solution: Kinetics and Mechanism

1995 ◽  
Vol 29 (12) ◽  
pp. 2987-2991 ◽  
Author(s):  
G. Mascolo ◽  
A. Lopez ◽  
R. Foldenyi ◽  
R. Passino ◽  
G. Tiravanti
Keyword(s):  
Aqueous Solution ◽  
Sodium Hypochlorite ◽  
Kinetics And Mechanism ◽  
Solution Kinetics

scholarly journals RELATIVE IRRITANT PROPERTIES OF THE CHLORINE GROUP OF ANTISEPTICS

1918 ◽  
Vol 28 (6) ◽  
pp. 681-699
Author(s):  
Glenn E. Cullen ◽  
Herbert D. Taylor
Keyword(s):  
Sodium Carbonate ◽  
Sodium Hypochlorite ◽  
Sodium Hypochlorite Solution ◽  
Calcium Hypochlorite ◽  
Hypochlorite Solution ◽  
Carbonate Buffer ◽  
End Point ◽  
Cent Sodium ◽  
Water Ph ◽  
Irritant Action

1. The use of the ears of rabbits is proposed in testing the irritant effect of antiseptics. 2. It is necessary, because of individual variations, to use solutions having definite irritant actions as controls. 3. 0.5 per cent sodium hypochlorite solutions have minimum irritant effects over a range of alkalinity of from about 100 to 1,000 times that of water (pH about 9 to 10). Solutions may be adjusted within these limits by use of the end-points of powdered phenolphthalein, of alcoholic solutions of either o-cresolphthalein or phenolphthalein. 4. Sodium hypochlorite solutions kept within the above range of alkalinity by either borate or carbonate buffer salts, i.e. Dakin's solution, show the same irritative properties whether made from bleaching powder and sodium carbonate, or from chlorine and sodium carbonate. 5. Electrolytically prepared solutions of the same concentration have similar irritant action. 6. Solutions, however, that have an alkalinity less than that indicated by the end-point of alcoholic phenolphthalein solutions (pH of 8.5 to 8.8) or greater than that indicated by the end-point to powdered phenolphthalein (pH of 10.2) are intensely irritating. 7. 0.5 per cent sodium hypochlorite solution from which most of the calcium has been precipitated and calcium hypochlorite solution of equivalent hypochlorite concentration are only slightly irritating. 8. 2 per cent chloramine-T solution has no irritant action. 9. 5 per cent dichloramine-T in chlorcosane and chlorcosane alone irritate rabbit ears to a slight degree only.

Photooxidation Degradation of Reactive Brilliant Red K-2BP in Aqueous Solution by Ultraviolet Radiation/Sodium Hypochlorite

2009 ◽  
Vol 37 (7) ◽  
pp. 574-580 ◽  
Author(s):  
Qing-Fu Zeng ◽  
Jie Fu ◽  
Yang Zhou ◽  
Yin-Tao Shi ◽  
Hai-Liang Zhu
Keyword(s):  
Aqueous Solution ◽  
Ultraviolet Radiation ◽  
Sodium Hypochlorite

scholarly journals Application of ozone ultrafine bubble water for cleaning and sterilizing the dialysis circuit

2018 ◽  
Vol 192 ◽  
pp. 03034
Author(s):  
Yukiko Nakahara ◽  
Kazutoku Miyazaki ◽  
Junji Nakao ◽  
Shijie Zhu
Keyword(s):  
Aqueous Solution ◽  
Sodium Hypochlorite ◽  
Ozone Concentration ◽  
Bactericidal Effect ◽  
Water Influence

The dialysis circuit was washed by the ultrafine bubble (UFB) water and ozone UFB water and sodium hypochlorite aqueous solution. The effect of washing time, ozone concentration of UFB water, influence of UFB water on artificial dialysis equipment, etc. were investigated. The cleaning and sterilizing effect of ozone UFB water passed through the filter for artificial dialysis was verified. It was confirmed that there were no colony bacteria in the circuit which was washed by the ozone UFB water for 1 hour. Ozone UFB water has the same bactericidal effect as sodium hypochlorite. As an alternative of sodium hypochlorite, we are expecting its application to the cleaning and sterilization of ozone UFB water for dialysis circuit.

Degradation of herbicides (ametryn and isoproturon) during water disinfection by means of two oxidants (hypochlorite and chlorine dioxide)

1997 ◽  
Vol 35 (4) ◽  
pp. 129-136 ◽  
Author(s):  
A. Lopez ◽  
G. Mascolo ◽  
G. Tiravanti ◽  
R. Passino
Keyword(s):  
Aqueous Solution ◽  
Reaction Time ◽  
Sodium Hypochlorite ◽  
Chlorine Dioxide ◽  
Hydrolysis Product ◽  
Water Disinfection ◽  
Experimental Conditions ◽  
Molar Ratios ◽  
Chemical Structures ◽  
Opposite Trend

The paper reports the results of an investigation aimed to find out the number and the chemical structures of byproducts which form during the reactions occurring in aqueous solution between two very common disinfectants, sodium hypochlorite (NaClO) and chlorine dioxide (ClO2), and two herbicides widely used in agriculture and frequently found in groundwaters: ametryn and isoproturon. Under controlled experimental conditions [T=20°C, pH=7, reaction-time = 48h, herbicide/disinfectant molar ratios: 0.05 and 0.05×10−2], ametryn reactions with chlorine dioxide much slower than with sodium hypochlorite, whereas the opposite trend has been observed for isoproturon. In any case, however, the higher the reagents concentration the faster the reactions. As for reaction byproducts, they have been detected by HPLC and identified by HPLC-MS. In particular, ametryn (R-S-CH3) reaction with NaClO gives rise to the consecutive formation of four derivatives: the sulphoxide (R-SO-CH3), the sulphone (R-SO2-CH3), the sulphonate ester (R-O-SO2-CH3) and its hydrolysis product (R-OH). Within the fixed reaction time (48h), ametryn reaction with ClO2 forms only the sulphoxide derivative (R-SO-CH3). As for isoproturon, it reacts with both oxidants forming aromatic-ring substituted derivatives. In particular, during the reactions with NaClO and ClO2, four and two (chlorinated and/or hydroxylated) derivatives are respectively formed.

scholarly journals Study on Decoloring of Indigo by Sodium Hypochlorite Aqueous Solution

2018 ◽  
Vol 91 (7) ◽  
pp. 215-219
Author(s):  
Hitoshi IWABUKI ◽  
Yuko MATSUMOTO ◽  
Hiromi URANO
Keyword(s):  
Aqueous Solution ◽  
Sodium Hypochlorite
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