Abstract: The invention provides a system for monitoring and controlling an exothermic reaction in an ion exchange process involving a liquid containing a composition capable of producing an exothermic reaction to control a continuous or a rapid evolution of heat and avoid the generation of excessive gaseous decomposition products which can produce pressure “bursting” forces within a closed container. The system has at least one ion exchange unit, temperature detecting units for reading the temperature of each of the ion exchange units and for providing a temperature signal when the temperature is in a preselected range and a quenching system which may be manually or automatically activated.

Abstract: The invention provides a method for purification of hydroxylamine so as to have a substantial reduction of cations and anions. The method involves passing a solution of hydroxylamine through at least one strong acid ion exchange bed which has been pretreated with dilute hydrochloric acid and then through at least one strong base anion exchange resin bed which has been pretreated or regenerated with a non-metal amino or hydroxide base solution.

Abstract: The invention provides a stabilized aqueous, semi-aqueous, or non-aqueous solution of hydroxylamine or a partially neutralized hydroxylamine salt and a process therefore. The invention utilizes as a stabilizing agent a specific acetic acid compound.