On an antidote at once for prussic acid, antimony, and arsenic / by Messrs. T. and H. Smith.
- Smith, T.
- Date:
- [1865]
Licence: Public Domain Mark
Credit: On an antidote at once for prussic acid, antimony, and arsenic / by Messrs. T. and H. Smith. Source: Wellcome Collection.
Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.
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![;; |i/:i^)lA fJ/. A .f/OKIT/A ,(J DA Olrsai/;!*! viilent; the quantity of perchloride solution required in the production of an .e^uiiTalfint M Prussian 'blue, inay be found-without any dilfioulty, thus -.—' 'jflO gnirmo't ' Ors. lr(Jiii(;[iEilto.-8il .*%*|tllr«n.OFl. dul'Sbll /hf.'/iic i -(IE ilvK-'t''' -i875- :f r rlGlM!:.;.-! 142irM:i ''l-28ii;or61«lf.mfiiims. i .b^hei3iequiva)entsi,of iron iji the. form of :protosalt,ireqiiired'foor the formai ifliofliof Prussianiblucaro.suppliedai^jSulphatO'of protoxide I of iron, the eqii¥ yaleut of ^vhieh is ,L39i; miiltiplying ithabjiiumbei) by.3v giives 4l7■g^airi^^!ilc)Y/• ;,llIt must, be! quite cJeir, therefore, that 6J4:minims:of,fiolution of perchloride of.iron, and 417 grains of green vitriol, BU[;ply thG;ipon:in^the form and quan-i tity necessary for the production of Prussian blue r and as-these: ingredients i(joiltaiii,',iiBe?peoti,vely.i 6:equivalents of ohlorineiand Siequivhlcuts of suJphilric ftpitl (Viiich ill prussiflJiiblueiiare replab^diby 9'eq.uiMal«n|:a of prussic acid), ib evulejit, as ;tbei equiyalenti ;Of prussio iacid is. 27; itlmt iQ times that«um ia 8431;,: 24:j|grains, of ppussic acid: can, ooinsequently,ibe: (destroyediby tJie labove nuautities ;i thereforei, the hundredth of that quantity, or:2i4 grains (a good deal mor;e,than. 100, minims;,of medicinal prussiQiacid), :canibe destroyed as'd poispn-ib}^ ^•14 niiniiioJS: of! solution iof ;;perohloridei ,iofiii(ffl',Kand|i4'17;grain8i!of green vitriol; but we need hardly say that prussic acid can take the placei-of j^f^ithec Jiydrochlor'ic Jjpr,sulphuric^cid,, unless, at. the; samp itimeiian equiva- lent quantity of, a strong base is supplied^ to ,take the strong acid from the il'Ofl,.the, affiaity, of wihj^h liS; compara,tively wpak. . Uuder, such circurastanoes, tli/e jrion a,t; pHoe, seizes ,pn, thei prusfiic.acid, apd the desired wsult is obtained.-rr) \)\\^ fornliatioivof a harildesft a,nd^table:Comppuud. i Tlie eflectia instantaneoqai ..jg'Jj'l^e. biase,that.appear,S;itlieflxosit suitj^ble.fpr ,v^eiWifch.theiajni1iidpt^iisicaribfi)n jj^^g pf isod^^oi;, corpmon washing Isoda,7nbu,tijin; cleau oryptals^i iTl4s ;Sqli-5 stance is very easily obtainable, is the most uniform in conditjiOBiiafidlth© }p^?ti.ll^^bl©,itOl Rdl^lt^era|^ipp. MiTiA© quantity correspondiug ibo tbp ,ii!on .splutijOn, iji qrdj^r.to.jf jpldj.wjtlx prussic acid an equivalent pf P:i,-ussi?iTi,l)]ue, is,9 equivpH lei|t8,, |or thei:q,5u,'e Q.equivalents, of hydrochloric il^iddft'ifl; Sr^q^ivalejit^iioC si^!phuric'acid,r which, tliesefpi^e^ in .cpfTabjuing^iWitllitkp s,o^4, gi,ve8.;6,squiv^ leflts., pfl .ciJori^^, pf; 8A4ippi) ia4i.4;i^|.e,quivalepit8i|prp^vdphait§ t).iere; shoMl^l '•hiUji^n .l^^ftn., ^( jqj^antity' pf, prussic, I acid |ifj< ,thp,stpfliaah:eqiiiaLiio. 9 equivalents,,thje >!i.hole of^fc iron ,wpuldi have, bwU(,cpnv€xted intp;Pru«si^ft blue ; buf if;tH6 quantity of,,pru.ssic acid should havej been equal to 4^ eq^i'■J yalents, or,, say half tha,t .quantity, the half or ihq quarter of the.iron woulfj. l^ayeibe^u chaugedi into,Prussian, jblui^i.apfj. tli^, remainder ^uto protosesqujr-. I he equivalent of crystallized carbonate of soda, not emorespj^dp. if ,143. jDiMs M^m?^..thg^f^rflVapt^t^y,is,a?&7,,aji^ tJi^rli^n<lVP^Hrl?i:pi'triis|,<?ftj)|^4ucu-tly'12-^7. \m ^nt?4pfe/p?;3;.^,grAiM ijphydwus.HUSsic^Lcid, pi:,u,p,waS[Qfi W wni?^^ 9|;iff^?'?/W'^?i 'E'Fl'g?,ipM-?ci:9) js. tjli^Jiefpft-fjj.(theprctically G-14 jnins. lio.,ferriipeij-rf WIftV?i4^ 4',l7i, igr^.,grpen, natrifif),., J^uixcd.'.tpgeI her; iu,; one,, splutipn,, ftijd, ^fiotl)er-splution c_oat9.ifl|itig ,12',9,^, gr^ffpi-j'stallipd; qqijbonftt,^. o^, soda. ,Buf S,w4. .WPpWfi^i flifjo^f. sjs 'tiiup^ J^fi^^uftWMfifi^.lff M^l^erv .;pQ ;r^uu?„ Wftie,'.i?al|,;^;i:i^^sic.,.ac^,4 ,^upj>ps.ed,;to.,ira^ve,,bpfn'.1i9]pen., ;jvye_\Ypul4 th^refoi^ PyPBQ?P '■^-^ ^- J- -•- -----1-^— every d ri'pason !fpr 8o^af'ge''a^'.excess,pTjt!i^^, ,4n,(iflpf,o'tp, prussic. acid, beijjgjrei;, wnHn^nde4.|is» ;tha,t|t^ieicarbpp,ic, ,acid, ,}fit^r|ipT^s .jyij.f:i t^ip reaction,, producing,. ^mm^ blue,, ^.T^^g.iffi^^^ ;9f}.'r^)o.mc ''■pj-.ttp >ft^ RrS?i;TAWu;; |±fi^ p/|^sen(;p,.c)f, ?i.l^rgp,^;^,cflss of the ir^u and ,car])oua,tc4 ^^Ijlva,-. 1L:°T^ u ■ result would be very different thj^ use pf^ la. cftustiq. ^lh?^o'5yj,M!if^>.r':R?}^7r)?iRtij^,at\,ji ^(j^jdf;^,|it$!,^?,t.\je,pf'p,9|,ua3^t?;fl?(;j;;;^' bliioilH .a-i^'nllu .■ 1 •.,h ..I I- ; ., ,, ' . i,, , , .'r:, ,](https://iiif.wellcomecollection.org/image/b21479276_0004.jp2/full/800%2C/0/default.jpg)
