▁a ▁river ▁ 1 9 1 6 – 1 9 1 9 ). ▁The ▁presence ▁of ▁cad m ium ▁in ▁pain ts ▁has ▁been ▁used ▁to ▁detect ▁for ger ies ▁in ▁paint ings ▁alleg ed ▁to ▁have ▁been ▁produced ▁prior ▁to ▁the ▁ 1 9 th ▁century . ▁ ▁C d S - C d Se ▁solutions ▁C d S ▁and ▁C d Se ▁form ▁solid ▁solutions . ▁In cre asing ▁amounts ▁of ▁cad m ium ▁s elen ide , ▁gives ▁p ig ments ▁ver ging ▁toward ▁red , ▁for ▁example ▁CI ▁p ig ment ▁orange ▁ 2 0 ▁and ▁CI ▁p ig ment ▁red ▁ 1 0 8 . S uch ▁solid ▁solutions ▁are ▁components ▁of ▁phot ores ist ors ▁( light ▁dependent ▁resist ors ) ▁sensitive ▁to ▁visible ▁and ▁near ▁inf ra red ▁light . ▁ ▁Saf ety ▁Cad m ium ▁sul f ide ▁is ▁to xic , ▁especially ▁dangerous ▁when ▁in h aled ▁as ▁dust , ▁and ▁cad m ium ▁comp ounds ▁general ▁are ▁class ified ▁as ▁car cin ogen ic . ▁ ▁Problem s ▁of ▁bio compat ibility ▁have ▁been ▁reported ▁when ▁C d S ▁is ▁used ▁as ▁colors ▁in ▁t atto os . ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Cad m ium ( II ) ▁sul ph ide ▁information ▁at ▁Web elements ▁ ▁I AR C ▁Mon ograph : ▁" C ad m ium ▁and ▁Cad m ium ▁Comp ounds " ▁Last ▁access ▁November ▁ 2 0 0 5 . ▁ ▁International ▁Chem ical ▁Saf ety ▁Card ▁