Stark widths and shifts of 25 visible singly ionized krypton lines are pres
ented in this paper. All of them were measured in a pulsed discharge lamp f
rom a mixture of krypton and helium. The electron density, which typically
ranges from 0.2 to 1.8 X 10(23) m(-3) has been simultaneously determined fr
om two-wavelength interferometry and from the Stark broadening of the He I
388.865 nm. The excitation temperature, from 16 000 to 24 500 K, has been m
easured from the Boltzmann plot of Kr ii lines, which has allowed us to rec
alculate some Kr il transition probabilities. Comparisons with most of the
data published to date about this topic in Kr ii are also included.