title: [Practicable method for preparing and controlling aqueous solutions of potassium bromide with very precise hydratic density].
abstract: With a view to realization the conditions of ultrasedimentative isolation of plasma lipoproteins the correlation between density (d4), coefficient of light refraction (nD20) and concentration (0,72-2,77 mol/l) of aqueous KBr solutions were analyzed. The tendency of alteration in nD20 with the change of d4 of KBr solutions have a linear character and the regression line is presented by the equation: nD20 = 1,1783 + 0,1552. It could be concluded from the analysis that the hydratic density of KBr solutions could be rapidly and very precisely controlled via Abbe refractometer at 20 degrees C.
mesh_terms: D001965:Bromides / Q000032:analysis / Q000494:pharmacology*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D011188:Potassium / Q000032:analysis / Q000494:pharmacology*; D017680:Potassium Compounds; D012031:Refractometry / Q000379:methods; D012044:Regression Analysis; D012996:Solutions; D013696:Temperature
chemical_list: D001965:Bromides; D017680:Potassium Compounds; D012996:Solutions; C039004:potassium bromide; D011188:Potassium
vernacular_title: Dostŭpen metod za izgotviane i kontrol na vodni raztvori na kaliev bromid s mnogo tochna khidratichna plŭtnost.