Yorkshire seciton

1912 Journal of the Society of Chemical Industry  
Introdwtion.-In tho HO-C~IILKI two-bath cliromc tannagc tho hides or skins aro first trootcd with a solution of potassium biohroniatc oontirining vnriuris a n~o i~n t s of mineral mid ; tho hichromate acid which is token np by the hide is subscqucntly rcducd in o second bath, thc reducing ogcnt b c i y , in nearly all practicirl cases sodiiiin thio-sn~phatc. l h c products of rcduotion arc basic clironiium I I~U ni:cdcd fur t,hu csplirnirtiu~i of l h itct.ion of t,hiosulphotc on ir niixturo of
more » ... on ir niixturo of Iii~ti\miiiiti t)ichroniata, irntl sulplruriu ircitl, irnd if in tlio.'irIiovu, oi1111~1~ioii~ \vc siil~ntit~itu ,for I* Rldisrdn, B. phyulk. Cliant., 1UO4, 20, Ktrnd Estrup nnd E. 11. Andernon, Kollald-Zeltechr" lelg, 10,161.
doi:10.1002/jctb.5000311601 fatcat:n2qdurva5rhevgtmoehcrqfegu