Studies on Aging and Formation of Precipitates XXIX. The Thermal Aging and Abnormal Physical Properties of Fresh Silver Bromide

Abstract

(1). Freshly precipitated silver bromide has a large surface development and is subject to thermal aging at room temperature in the air‐dried state. During the aging the magnitude of the surface decreases and also the speed of incorporation of radioactive bromide, when bromine dissolved in ethyl bromide or in a gas phase is shaken with the solid. (2). A rapid exchange occurs between bromide in fresh air‐dried silver bromide and radioactive bromine dissolved in ethyl bromide or bromine in the gas phase. (3). Fresh silver bromide has a relatively large electrical conductivity which is at least partly ionic.