Document GzoDydaEeo33MdGJLKB9X1JEn

Thoughts PUBLISHED WEEKLY BV THE ACME WHITE LEAP AND COLOR WORKS. DETROIT MICH ftcvaut te Afatten *f tnimti te Oar Rtprtttnirtim. VOL. 1. DETROIT, MICHIGAN, JANUARY tj, 1900. NO. 20. Pilot ul fa ScU CfafaMm*--Tfa ing. In them redacts tt prod--v what to * tidn. obtained by dtoaolvtng lead oxide or known as painter* ooUc, paralysis and other muUle load in acetic acid, by means of Sl/M-TMCD WNITt LKAD AMD BMC VWT*3. stobfcorte said, the reformed acetic aeld tc Th* unhealthy assure of th* White Lead ! b* usad ever again (or the manufacturing of matter's and ttarn's caUtag ha* loog bean | afretet solution of lead acetate or sugar of 1 Y JOHN court- recognized anB effort* have bean made to ' lead. discover and tnvsel a pigment kh* th* ! Aa ( said, all these processes were soon With all tta food And desirable euatttiaa, ; carbonate of lead, but In a practically in* ' abudonad. until in 1880 here in America a Whit* Lead. th* baric carbonate of load, 1 nocuous form, a* a basts. Thaos efforts lad ! veto ef ore containing both lead and tine hu However. one put fault, and that la, aa j to the suggestion of uring the Whit* Load ; war discovered. being a mixture of galena I aid. it te considered of only f*h durahtttjr. sulphate as a pigment. ' and blends, thai la,'a sulphur combination Its chemical composition and conatltutkm I Thto lead composition to much less easily with toad and sine. la for Itself v*ry looaa. acd In fact, oa *x- 1 decomposed and ir therefore capable of poaur* to weather or to ft*** ordinarily j restating the ehsmlcal change edrioh the oocurtnf in the atmo^hera, It ta somewhat | carbonate undergoes to the stomach and quickly discolored and acted upoa. la ocher system, so aa to reader tt absolutely non. word*. It la short Uved mleute evades aooo > poisonous. As a matter of toot, in came of appear on th* surface of th* paint asd too* lead poisoning, diluted sulphur!* ate# fee chaefcp dleepsq. until they reach the material administered by maoM^oiwhkfe the ~eav*ced' and-rite- petal, tehees* lb* Wtou. Lead wee not exactly up to the ataedard* soluble tad harmless sulphide. drops off in minute scales or fe form ef a Th* white pigment ~gbJphate of lead as it very fine white dust. Bet. nay ilid-- to met with on the marker, to. however, not seder normal condition* tad applied in a the straight chemical competence of toad proper wey. w can aay that White Load Is oxide and sulphuric add, bet contain*, ac a food pigment; however, aa soon as these cording to th* manufacturing prnnms, more normal eoedltfons ar ehanfad. or th* Whit* or teas lead and ttito arid**, and Is arid The proportion of sine to this ore made tt. however, very unfit for the smelting and mftotog proeee* for the production of lead (MftaLaod as this ' iprionA*' ta reduced by tbs regular weltingpreces* Into partly lead. oxide and partly lead sulphate, it was C as the bento foe tha manufacturing of of lead according tp patents taken eut by G. T. Lewis and Bartlett. TTieee pateats, or si least their principles, are operated at tha present time by the Pleher Lead Co., in JopUn. Mo., whose product la known to the market as pjehef Sublimed White Lead, " Lead 1* used tit or noar localities where It te under various names. thus, abroad as Th* process to Its principle te as follows exposed to th* fumes of sulphurous pea. " Patent White Lead." '* Noo-potoenous When toad or* as ** galena." the sulphide ei opodally sulphurated hydrogen and White Lead." and here In America under toad, to hasted to a furnace with access if which fees* era preaant avaiywheie whare th* trad* marie **Sublimed" or ** Plotter air. It undergo** oxidation: tt to as l ic&- fas or coal are used for Ufhtinf or heating White Lead." the Uttar to our ao<afiad "A" ttlat, transformed into lead oxide and purposes, the White Lead wifi rapidly loan lead. sulphate, ike degree of the oxidation depend- its white color and will be more or las However, ta the beginning of the parted tog upon the amount of air which comes ir darkened or blackened. This dlaooloratiaa when a great number of Inventor* and toad contact with the ore. Th* temperature aiac is caused by the combination of thr sulphur manufacturer* endeavor** to find a bettor hat some Influence on the result, tn fact i> a In thee* faxes with th* lead by the formates substitute for White Laid, th* only way* probably tha chief factor in the process. ef th* black lead sulphide. and mean* of accomplishing this task was Both the accam of idr and the degree ; Another fault of this whits pffmeat. the basic carbonate of lead, is that It to to a certain eittent poisonous, and theca was a thought to b* by precipitation, sad to fact the patents token out on thto sublet are in numerable. heat are to be regulatod in such * manr.e* that the main product 1* the sulphate arc not the oxide. This te accomplished lim* when only the old Dutch prnmm alone Each end every one of these patents, for specially arranged furnaces, la which he wai In use. when the Whitt Lead works the production of sulphate of toad, were no or*, in connection wtth the proper fuel x* were called with food right: M White earn*, good, and the manufacturing of sulphate of deck, to operated on, sad converted by i teriee." Moat of you have heard of lead toad aa a pigment was very soon abandoned. proper degree of bent Into the a>ca.te peteeaing. and perhaps on* or mon knows from experience, either direoety or indirect ly, what It la. Th* fact la. that While Lead leav** its mark more or leas whoever it fOa, and its path Is Indeed a very broad one. for its use eater* largely late many industrial pm ns--, and la general. aa we know, to th* making of paint and for paint The cause to. th* precipitated aulphate of load la too crystalline to order to give to th* final product body and covering capacity enough to serve a* a pigment, substituting White Lead In regard to these properties. Th* principle of these process**, an a whole, were th* precipitation ef th* lead to form of sulphate, from a toad acetate aeto- *' toed fiuna." eonstoring of lead auipM-.r toad oxide and oxide of zinc. Tha plant constats of seven! furnsjra which era connected by Hues wish m affletent system of condensers, in whic* *"e toad fumes ar* collected. to eaeormeuxe 0007-SWP-037262 N22953