Aqueous solution of poly (hexamethylene guanidine hydrochloride) and poly (diethylenamine guanidine hydrochloride) as studied with acid-base indicators. Khark. Univ. Bull. Chem. Ser. [Internet]. 2019 Dec. 27 [cited 2026 Oct. 26];(33):65-76. Available from: https://periodicals.karazin.ua/chemistry/article/view/15586