The grecn basic ; va lcnt·c KCr1(SQ,j)z(OH)(, i, a
hydra ted chromium ,ul fatc which b ~t rucllLra ll y 'imilar to
jaro~i t c. This cumpound wa~ flr~ t ~ynth c.~il.ed hy MJt~c h c rli ch
( 1 ~61 / 1240) ill . howevcr , ils X-ra) s tudJ e~ were unllc rlakcn
by thc author. In th is stully. the cuhcdral cry)lta ls of
KCr1(S04h(OH)" werc ~}'n lh c.,il.cll anll eX:.JInin cli hy o~cillatl ry
crystal and Wc i~~c nh e rg methods, and the fnllowing rc~ult~ wae
ob wined:
c,,= 17. I 17 A, "0= hn= 7. 12S A . (.! _ ')()" • Y _ 12()O ami c, lu,,= 2.J 71.
Thc Pri ncipal X- ray powder diffraclion data an.: a~
follows:
5.058(48) ,3.07Y(53) ,3.052( 100) , 2$55(3.3) .2.2XI (5Y)A.