RESUMEN
Type 88-I disinfectant (commercial name "yi xiao jing", briefly called 881) is a liquid disinfectant studied by our department.Its effective component is dichloroiodoisocyanuric acid (DCICA).The molecular formula is C3O3N3C12I and the molecular weight is 323.9.3-5 ppm of 881 could disinfect E.coli 8040, Staphylococcus aureus 6538, Staphylococcus epidermidis 8032, L.coli and E.coli f2 bacteriophage in 5-10 min.The disinfecting efficiency of 50-100 ppm of 881 for Bacillus subtilis black variant 9372 is 99..9999-100 % in 5-10 min.The influence of the outside factors on the disinfecting efficiency of this disinfectant is less.The field experiment proved that the 1:50-1:100 of dilute solution of type 88-1 disinfecting various things at several places may be within the reach of sanitary demand.This disinfectant is stable, less odorous, not irritative, low corrosive and toxic.The Ames test, Micronucleus test, SCE test are all negative.The contents of Pb, As, Hg, Zn are below the sanitary demand limit.It is safe, cheap, convenient for usage and has the wide range of utilization.
RESUMEN
The 86-I type resin for drinking water disinfection is a disinfectant resin of anion complex type of polyhalogeated compound.IBr2-anion complex salt was originally Synthesized and was a brown red and transparent liquid.It was passed through the resin column for exchange and rinsed with water until there was no I-and Br-in the rinsing water.This resin may be produced with simple equipment and low cost, and its quality is stable.Water quality disinfected by this resin is good and safe for drinking.Coli group and f2 phage could be removed by 99.9999-100% in the laboratory, and water from various water sources, disinfected with a total count of bacteria being less than 100/ml, and coli group, less than 3/L.The results suggest that the water quality disinfected by this resin is in accordance with the standard for quality of drinking water in our country.