The railway chemist and his work
โ Scribed by Bassett, H. N.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1936
- Weight
- 484 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0368-4075
No coin nor oath required. For personal study only.
โฆ Synopsis
I hydrosyl group, but tlic c1ifrereIlcl~ lies in thiit in a11 iicitl thc link between osygeii aiid ltydrogcii of tile O H group is clectro-iilciit~, wlicrcus in i i biiso the liuk between the innin atoiii coiiccnied and oxygen becoiiies clcct,rovalent 1vit.h the production of the OHion. It. is therefore to be niit,icipat.ed tliiit biisic properties will bc xuiiuifested when t.he inciiii ionization energy of t.lic iitom is less tlinii that of hydrogen, iiiid iicidity when it is higher tliaii hydrogen. 111 the fornicr it is easier t.0 split off the inctiil froin oxygeii t h i i hydrogen, iiiid in the latter the converse of this. Ainpliotcric character is therefore to bc niiticipirted in ciises wlicre the uienii ionization energy is close to tliirt of hydrogcii, :ind this is borne out by tlie followiiig table.
eiirth nietnls having low ioiiiziitioii eiiergy give bases ; berylliuin which liiis nlinost the siinic ionization energy 11s hydrogen is ninpliotcric, wliile boroii is acidic.
DIFFERENT STATES OF V A L E N C Y
\ \ r h c ~~ tin iitoin csliibits difrcrciit stiitcs of viilciicy i l l its coinbinntioiis with otlier elcineiits, the higher ~nleiicy ulwrys rc1)rtwiit.s ii higlicr inciiii ionization eiiergy, piwticuliirly if iictivnt.ioii of nii s2 group is involved. The iippriirniicc of covnlciicy iii tlic higher statcs of vnlcncy of cert.iiiii elcnicllts which iirc clect.roviilent when csliibiting II lower ~iunicriciil \dcncy is thcrcforc to be niiticipiitcd, :id iiiterestiiig results for sonic cliloridcs tire collected iii tlic following tiiblc. TAIILE VIA (nc = nridic ; b = biisic ; n = nnipliotrrir) Contlirctivity in fiisecl state J l e i i i ~ ioniuit ion 15.p. Of LiOH %OH KOH 13b011 CsOIl energy diloritle Ilt h.1). (Jf ":"I b b b h b oliloridc
๐ SIMILAR VOLUMES
which is given. clscwhcro in this issuo, d d t with tho prncticitbility of producing nlcohol direct from ngriculturn~ products, and I d to tho conclusion that tho qiicstioii of tho mnnufnctirro from homo-grown products is still sub jiidicc. In tho discussion Prof. C . โฌ1. I)CS& stated tlint cspcrini
M y first rcnct,ioii to tlic gr:iiidiloquctitj title of this syinposiuiti wiis that its origiiiiitor \vis?ictl to sliow t,li:it lic Iiiid licnrtl of ultr:isoiiic resoiiitiicc. I t illso occiirrctl to itic t,liitt tltc Niitioiiid 1iist.itutc of Iiitliist,ri:il l'sycliology iiiny hnvc ntlvisctl tliitt
Ever siiicc I wiis :I hoy I linm \vislietl to writ(> i i discourse oil Conipcnsntioii. . . . 1 was Iiitely confiriiicd in tlicsc desires hy henring ti scriiioii :it churcli.
spcecli for the defendants in the great \\'clsbach infringcinciit action of 1896. The patentt was for a inaiit,lc mndc " of the substances inentioned," t.liesc being vitrious osides of the rarc-earth groups, whilst the iiifringing article was made of quite ii different aiisture of oxides. Protesting