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Transactions is a Chemistry article available to read on EtoBox.
What is Transactions about?
Froin tlic tniincrs' point of ricw tan substances cnii be tliritlctl roirglily into two classes, bnsccl on tho fnct tliat uiidcr tlic actioii of Iicat tlicy yield citlicr pyrogallol o r cntccliol. Catcchol-tnniiins iticludo birch bark, oak bnrk, qucbrnclio, mimosa bark, mnngrovc, iiinllct bark, lieinlock, ctc. l'yrognllol-tannins inclutlc myrobnlnn, vnloiica, onlt wood, sumac, chcstnut, nlgnrobilln, bnbool, ctc. Cntcchol-tniiiiiiis clcposit ' I rctls " niid usunlly form rcry little acid. 1'~~~gallol-tniiniiis dcposit n wliitish substiuicc, known as " b100111,~' nncl consisting of cllngic acid ; thcy give a fair niuoiint of ncirl, and on the wholc, ~iroclucc n rntlicr softer lcatlicr tlian the catccliol-tnniiiiis. 11 iscd tan cst rncts arc cstcnsircly iiiiinii fncturctl, the iilciL being t o use both tlic ' I reds " and tile " blooni." Tlic raw niatcrinl rcccivctl by tlic cstrnct fnctory, whicli may bc either grccn or dry bark, Iiiits, or wood, is first disintcg-ntctl, cruslictl or ground. Tlic groiind nintcrinl is convcyctl t o the lc:tcIics, wlicrc tlic cstrnctioii of tlic tan tnlccs place, nncl the liquid cstmct is conccntrcttetl in urnporntois to a product contiiiiiiiig :W-5Ux o
Who reads Transactions?
It is typically read by researchers, students, and practitioners in Chemistry.
- Publisher
- Wiley (John Wiley & Sons); Wiley (ISSN 0368-4075)
- Published
- 1923
- Language
- EN
- Field
- Chemistry (Physical Sciences)