OBTAINING OF DRY CONSTRUCTION MIXTURES ON BASE OF RAW MATERIAL
The work explores the possibility of obtaining of dry building mixtures on the basis of local raw materials. Compounds of dry putty masses obtained and their properties analysed.
CHEMICAL PROBLEMS
SYNTHESIS OF SOME AMINOALCOHOLS ON THE BASIS OF 3 (1′, 2′- EPOXYPROPYL)-6-METHYL-2-OXO-4R-5-ETHOXYCARBONYL(ACETHYL) -1,2,3,4-TETRAHYDROPIRIMIDINES
Following the reactions between 3-(1′,2′-Epoxypropyl)-6-methyl-2-oxo-4R-5-ethoxycarbonyl(acethyl)-1,2,3,4-tetrahydropirimidines and amines, aminoalcohols have been synthesized. The structure of obtained compounds was improved by IR and UV spectroscopy, while its purity by thin layer chromatography method.
RESEARCH INTO OF NEW INHIBITORS OF ACIDIC CORROSION OF STEEL
There have been examined azoderivates of double basic acid as inhibitors of acidic corrosion, synthesized on the basis of individual compound (A), and as well as samples formed on the basis of industrial wastes (B and V). It was established that effectiviness of samples of inhibitors, obtained from industrial wastes (B, V), is higher than […]
NEW SYSTEM FOR ENVIRONMENTAL PROTECTION
The article refers to data on environmental pollution sources, as well as current systems of protection.