Document b56QyYYOp1624KOLmGJK6gpo

FILE NAME: Talc (TALC) DATE: 1956 July 17 DOC#: TALC407 DOCUMENT DESCRIPTION: Confidential Memo from J-M Research Center - Micro Examination of Talc CONFIDENTIAL JOHNS-MA.NVILI.K RESEARCH CENTER M i-m onirifi MU2-38 Dati Jyly 171, 1956 MBUICRRLOINSGCTOOPNIC, .VEXERAMMOINNTATION OF TALC FROM EASTERN MAGNESIA TALC. CO., ' aAnndexusaemdinbaytioJnohwnsa-sMmaandveilolef pCoowrdpeorreadtiotanl.c , Tshuisppmlieadterbiyal EwaasstercnomMpaargendeswiaithTatlheeCothmrpoaeny following commercial talcum powders. JCoahsnhmsoenreanBdo,uJqouhentson Baby Powder Mennen The re su lts of the examination are as follow s? A, EOfasttherins aMmaogunnets,ialeTsasle thCaonmp1a0n#y c--ouOldvebre9.c5o#nosifdethreedsaemlopnlegawteads otarlcfi,brioigu3sSi^aCpRpqea'OriHn)g^ pthaertbicalleancseizecofnrosmisti1n2g5-dessen tially Tooftapl laimtepyurtiatlicespwaerrteic leesstimthataetd ramnigcerdo in scopically to be lo S3 than 5# of the sample as follow s; C hlorite, (Mg, FeJjA l, Fe)^ Dolomite, Ca, Mg (003)2 ' Pyrrhotite Tremol tie , OftoMg5S.itjOggfOH)", ' - Major Impurity Minor Impurity - Tra e Impur i 1y - Minor Trace Impurity oJovhenrso9n0#anodf Jwohhinchs,onwabsabpylaPteoywd(epr a--rticTlhees sa1m25p/l(e.toc<on5s/i<s(t)edandeslseesnstiathllayn o10f# talc pofrewseenlcthinwetrreaceelonamgaotuendtsp. a rtic le s. The princi.pal impurity w.as dolomite C, rCaansghminegreinBosuiqzuee.ftro--m TlrGieOMs-afmtopleleswsastheasnsen tiallyLepsslattehyanp1a0r#ticolfe stheoftatalclc was melaognngeasteitde, pMagrCtiOc-,l.e s. The sample also co5 An.tained traces of dolomite and D, wMierennpenlatTeaylcp artTichel.e-ssamrapnlegincgonisnistseizde efsrsoemn t1i7a5l^lycdoowfntatolcc Sov/fe.r 90L#essof thwahnich10# ooff mthaegntaeslcitepwaerrteicplersesehandt. a fibrous' or elongated appearance. Trace amounts tIanlcmuymoppoinwidoenr; Uw3eidthbyth-eJo.ehxncs~epffteionnvllolef tihs esismligilhartlyin hmiglhneerrailmogpiucraitlycocmonptoesnitti,ont.h,e cpoamrmtiocnlley usiszeed dtailscturmib uptoiwodne,rsantdhasthawpeeretosubthmaittteodf fthoer cthormepearriesopnre. sentative and cc: C,, L, Shockler - Manvlle Plant (3) AH,,.. 3LR,. KWCiuilnmlgmi,ianmJssr. PR,,esle. ,,arcKhadMeyi,n eJrra. lo g is t CRMC-HT-TALC-000045