PT - 19 в столице хобей есть стоит 4.30 проверенно мной
Вообще-то не химический, а физический.
Принцип работы солевой грелки.
Немного физики и химии…В емкости грелки находится насыщенный раствор соли с плавающей в ней палочкой – «пускателем». Солевой раствор находится в состоянии равновесия.Надлом палочки – «пускателя» провоцирует изменения состояния равновесия. Надломанный кусочек аппликатора служит центром кристаллизации перенасыщенного раствора соли. Процесс кристаллизации соли из перенасыщенного раствора сопровождается выделением тепла. Процесс кристаллизации с выделением тепла называется каталитическим процессом.
Где купить солевую грелку
Солевую грелку можно купить в любой аптеке или специализированном ортопедическом салоне. med.gramix.ru/solevaya-grelka-all.html
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