Study of the state of laboratory animals after subchronic oral exposure to solid rocket fuels component

The toxic effect of poly[3,3-bis(azidomethyl)oxetane] of high molecular weight in subchronic oral intake of white mongrel rats was investigated. It has been found that in a one month experiment the compound at doses of 90,0 mg/kg, 30,0 mg/kg, and 10,0 mg/kg caused a change in the complex of physiological, behavioral, hematological, biochemical, immunological, and pathomorphological parameters in animals. At the same time, the cumulative properties of the toxicant were not registered.
The deviations revealed were dose-dependent. Thus, during the entire period of intragastric administration of the substance, 15 significant changes were noted in the males of the first group, two of which went beyond the 2 sigma deviations in relations to the control values. The same ratio for the second experimental group was 10/1. The oral intake of the substance under investigation at minimum dose was accompanied by 5 violations in the homeostasis of the experimental animals, which did not go beyond the 2 sigma values in relations to the control values.
Taking into account the insignificant number of changes detected and based on the current diagnostic criteria, the dose of 10,0 mg/kg has been accepted as a threshold of subacute general toxic effect for poly[3,3-bis(azidomethyl) oxetane] of high molecular weight.
The obtained data was used when developing the maximum permissible concentration of the estimated component of solid rocket fuels in the water of water bodies.