Purpose: The chemical interactions that cause drug incompatibility in solutions, with emphasis on the acid-base and ionized-nonionized forms of organic, weak, electrolyte drugs, are examined ...

In aqueous solutions, weak electrolytes exist as pH and pK a -dependent conjugate pairs of their acid and base forms or species and of their ionized (or salt) and nonionized (or molecular) forms ...

THE existence of α- and β-forms of calcium sulphate hemihydrate has been the subject of much controversy. At present it is considered that the difference between the two forms is in the ...

Abstract Calcium silicate-based root canal sealers have been developed in powder/liquid or premixed ready-to-use forms. The evaluation of the physico-chemical properties of a prototype powder/liquid ...

Slow-release fertilizers represent a possible large-scale application for plant polymers. Here we show a facile way to stabilize urea in fertilizer systems by lignin. Chelation of kraft black liquor ...

Protic ionic liquids (PILs) were prepared by neutralization of a series of allylamines (allyldimethylamine, allyldiethylamine, and diallylmethylamine) with trifluoromethanesulfonic acid, in order to ...