bnsis nictiil, hit it is intrinsiciilly much more vnluitl)Ic thnn silver iind tliercforc docs not tlcbasc it, wliilc it illso imparts ii h.irdcr slirfiicc to the nrticlc.
Indectl, since rhodium is inorc costly tlirin gold or pl:itinuni, i t niiiy he iiscd for plnt.ing citlicr of tliesc nictiils, iintl white gold : i d plntinirni jcwcllcry hii-c in fiict bccn finislied i n this niiiiincr cntircly sircccssfiilly. l'lic coloirr of rliodiiim is whiter rind thcreforc! niorc :ittrnctivc thnn plrttinuni. Rliodiuni is :ict,iiiilly tbc nohlcr of t,lie two inctiils, since it
rciidily dissoivetl in iitliiii rcgin, which will nt,tiit;k platiniini, : i ~i t l this fiict O ~C I I S 111i i i proinisiiig licltl for the nictiil. Apiirt froni its IISC for jc\vcllcry, its Iiiyli rcIlcct,irit.y niiikcs it pnrticiilrtrly viiIiiii1)Ic a s :I fiaisli for rcflcctors, for tlioiigli tlic rcl1ectivit.y is less t,liiin that of silver, t.lic liit,ter is soon reduced l)clow thatl of the untiirnislml)lc rhodium wider Hcrvicc contiit ions. Rliotlium is dcpositctl from l)iit,lIs of pittcntecl coniposit.ion containing various rliotliiiin compounds, pnrticiilrirly thc complcs siilpliiitc niitl nitrite. 'I'lic Imis inctnl inny first bc plntctl with nickel, or prilladiani in t lie case of vnluii1)lc iirt.icIrs, prior to rliodiiini pliitiag. Tlic cost of rliotlirini docs not greatly nffvct t,lic final cost of t.lw plntctl nrticlc iis it Iliiiy IJC cffrctivc:ly tlcpositetl on iili iitleqiiiitc iintlcrcoiit in ii very t liiii Iiiycr which is ncvcrt Iic.lrss rcriiiirkiilJly conipiict, t Iic riisenil)lc resisting corrosion well. Soiiic tlircc inKnis. of rliodiiini iiiiiy be tlcpositotl per sq. in. of siirfiice i i t ii cost of' i i b o ~t ad. for inctril and for niiiny intliistriiil iippliciitions this is not high iii reliit.ioii to the iid.iilitiigcs wIiit*li iiccriie