No abstract

THM JOUBNAL OF T H I the conditions of preparation. The platinum salt examined under the microscope consisted of a mixture of crystals and amorphous masses. QU.4TENARY NITRATE, CaHzNsO.NOs. The salt is prepared by dissolving the quaternary chloride in hot water and adding a saturated solution of potassium nitrate in water. It is recrystallized from boiling water and dried in vacuo over sulphuric acid. Snow white rectangular prisms, difficultly soluble in cold water, quite soluble in methyl alcohol and hot water. It turns yellowish at 190' and melts at 192-94" to a reddish liquid.