Document 6bJw7KdNwx9dob3o00ZRbnmoE

,. () t ,J.9 COKIJ/,NY C~!tHDC:iiTIAL W. H. REYSE/1 SEP l 9 . t pP-\'- fl' Fil No. 843S-l ~\.'IAJ.YT(CAL W:5,\ACh (lt:['AA!!'iF.N'!' REPORT ADP_ _,..18.u4LM,.1_ _ _ __ Q64-109 s...ReqllHted by_ _ _ _...,B.,,....H. ,....,......C-,Q...,t,,..t.___ _ _ _._.:Dat Completed,.._.:,9z..;/l::5:.L/..:.7;;..2- -- -- , t.asnv.g . :.!.e !harlll" are filt1liu ailhrt talca in ua for Chicago Production. , ., . PwT of tba& vue'. ualyze4 amL t-i,ort&.d 1D All1P-1435. Tbe addJ.tioul . ... elsvea taLc: u:o au1,1-.d and reported he-reirl.tb. .. . MiCJ:Ottcc,pJ..c ad X-rar malyd indicate that 8IIIOl1a tbi fiftun talu . six arr -relatively cle&. tbe rut a.re IIOta o-r laae contamin&t-4 by txomoUt.a vbich 11 a 11W1trol clauificd u aahutoa. The au: ~ .r talon are: ' . . .. , . ) 6i 23 00 T&lc. Ve.-, l'iJse ~ 62 34 00 Micron Talc '49 \ 62 20 2S ~ lU.a t,:oa. 11CD-7S !62 lQ 26,' 62 30 21 , 6~. n 2': ~ .. , : , ~" I . , ;r ~ ~r.r.."?,.- ,. --...... " -(".t,\: , : 'l'f; \ 11o,,_ , ~"11 f ,._ ff' \ t ,. F - . I e , ,........... f 1:atal 4190 !atal 41 - Talc ... ...TUM ,'.-. Talo ' ldl.tq . '.... a.:'...-:..'.~,.. ... CAM-373 .. ....... malyat._...:..._;...__ _ _ _ _.;.__ _ _~~--~chard W. Sooct, J>.tnctor Ailalytica.l aeaearch Departasant - ;~,.~j~--~~~~s)C:~==fi~---~\~!,- .-,mt~~:l.r~ ~~. . .~ . cc -. IIIS CJI 'Jal. POO ID(JE'l') JDM SlselVlaWilliaal ae..arcb Center . . ., ._. ., .. , , ~~ ,u(' - ----- - --- . -- 01344567899999 COMFANY COOFI.DENTlAL ADP8461 PunPOSE In order to be prepared to comply with the Illinois Asbestos E~isaion Regulations which might apply to the paint industry, four talcs used f or Chicago Production were analy~ed for fibrous aebestos. The rssults of that analyaia were reported in ADP-843S, As infonaed by Joe Thon1ton0 there are actually fifteen different talca in uae iu Chicago Production including the four talcs analyzed. It was therefore requested that the presence or absence of fibrous asbestos in tbe additional eleven talcs be determined, CONCLUSIONS ; Eleven additional talc ware analyzed by microscopic and X-ray diffraction mathod8, The re1ults indicat6 th4t among the totml of fifteen different talc the follO\ling aix are relatively.!!!!!.: 62 23 00 !!!!!! Talc, Very Pine . Ea.stem Magnada Whitaker, Clafk and Daniela ODited Siena 62 34 00 Microne Talc 5~9 Eaateru Magnesia Whitaker. Clark and Daniele 62 20 2S Kitron BGI>-75 Ullite1i!I Sierra 62 20 26* 62 30 21* 62 32 25 Emtlll 4190 Emtal - Talc .. Toxaa Talc' railina Eutero ~gne1i.a .Baater.a H.a.. snia Whi~r. c1ayk ~d DaDiele Reported 1n ADP-8435, The firet two are the. cleanHt, 'Iha laet cma ia of .muah larger particle aizo. I GeuerAlly, the tolcaMrom the aama supplier have similar charactu- istice. Judging by the r~lilta of this ao.alysie, tbe charaete~stica of the products of the six' 1upp3:1ua ax-e u follow!' . (1) Eaatem H&gnede Talc (EH) : 11.elatively clean talca of fUJe particle atze, (2) Whitaker, Clark and Daniela (WCD): Relatively clean talc, coarae particle aize aometiJles. (3) United Sierra (OS): Uniform particle size, eo~e gra~ r claan talca, aome grade, ar contamiaated with tra11olite . ~~ ~- A.., .... - .-...~: 01344567899999 COMPANY CONFIDENTIAL ~-8461 -2- (4) Desert !Unerals (DH): Fine particle size w1th a omall aMounc of t rc.moli te, (5) New York Talc (NY): Containt crystal needles of variouA lengths .and ,n.dtba. contaminated with cremo11te, (6) International talc {IT): Contains cryetal needles uid/or fibers. contaminated with asbestos, REStTL'IS The reoulta of mi.croacopic and x-~Y ditfracti.on analysis are listed below ioclud1.ng the four talc.a proviollllly reported (ADP-8435). The ,sequonce of l.iating is ia accordance vith their degrees of contamination. The aix cle&D talca are liated first, the 1110te contaminated onee are lietad last. Talce from tha aame 1upplier are grouped together if poeaible. For the sake of aimplicity, the initial of various suppliers are uad in the first coltmm of the ltat. One complete set of Polaroid lllcropboto- grapha is attached' to R. W. Scott's copy of th11 report, . They are available to anyone who 11 illtreated, SOlple, Code oud Suppllar : filCl'OIJC9PY 0bHrvat1ona XRay Dif fraction 62 23 oo. Pine powder of ratbar Clean talc, Mg,Si-01t(OB)2, ' Talc, Very Fine, unifom particle she EH, US, WCD and shape. Th appai-ent ASTM Card 13-558. particle ai~ 1a about 1-5~. Few p~iemattc cryatala (toda) of lar1ar st., .:.. 62 34 00, Very a:lllilar to 62 23 00. Clean talc, Mg1Si,01o{OH)a, Microne Talc AS'?H CaTd 13-558. 549, EM, WCD &l 20 2Sp Very a11(1Jar to .62 23 00, . . f .Miatron HGJ>.75, us Clean talc, Hg,S1.0,o(OH)a, ASTM Card 13-5S8, 62 20 26. . l!!mtal 4190; EM Very siailar to 62 23 00, (See ADP-8435) Clean talc, Hg.si.O,o(OB)a, AS'IM Card 13-S58, but not u clean as 62 23 00. 62 30 21, !mtal 41Talc, EM VeTy aimila~ to 62 23 00, but ccareer in particle size, (See ADP-8435) Clean talc, H1.s1.o,o(OR)1, ASTH Card l3-S58, lta X-ray diffractio'A patteni ts very ailllilar to that of 62 20 26. .. re \ I t N t tt I t\ t iH' ~i''*''11Wti+ffts;;a.;aa:ririi:finfnr&flt,iii@ w,faw;;w;;(i,nzii:MfaidifWewd 0134456789999 9 ! I .... . I. I i i ~ i- COMPANY CONFIDENTIAL ADll-8461 -3- Sample, Code and Supplier 62 32 25 I Texaa Talc Ta111nga, WCD. 62 40 oo, 'talc, Soaptooo, WCD. Ml c r o s cop)'. Obearvgtione - - - - - - -x-nov Ditfrnct~on Particles are ~uch coarser than that of 62 23 00 uith a wide particle size distrib- ution. Larger particles are up to 30\,l in diameter. No needle or fibera were observed. Mainly talc:, Mg1 Si-0 10 (0H)i, ASTM Card 13-558. Small amount of antigori~e, ASTM Card 7-417. No detectable tremolite. It baa a .J!!Y color vhile all the othar talcs are ~hita. lta particle are still coarser than that of 62 32 2S~ but it, particle aize distribution is narrower. Talc, Ms,Si.O,o(OH)a, ASTM 13-SS8. MalP'eaium Chamoaita, .ASl'M Card S-0146. Very emall amouat of tremolite, ASTM Card lJ-437. 62 20 24, Silnilar to 62 23. 00 in Kvs1.atOD MSC, - part1cle. ,1za but hae many crystal needles. (See ADP-843S) Talc, MgaS1,01o(OH) 31 ASTH Card 13-S58, Tl:emolit, Ca8 Mg1 SL.Ou (OB)a I MITM Card 13-437. 6Z- 33 00 Siadlat' t'o 62 20 24 in Tlc, Miatron, ;' particle aise and ahape. T-076 1 OS The cryat&l needlea are larger la aUlll,er and longer , . ..i~ l~~ti'. . . .... . . . . . : ' Same ea 62 20 24 but appura to contain more tremolita. 62 20 21 Very aiailar to 62 33 00 Sama aa 62 33 00 but contai~, Nytal 400, Talc:, iD every reapac:t under th4 oae addition,1 colll'oneat Vanderbilt, NY lllic:roacop_. . (See ADP-8435) ~ryaotile, ~ Card 9-444. ,.. 62 32 00 S1milar.1to 62 33 00 but -Nytal 300, '?ale; NY . .. '- ... c:uc:h ~ r . lt contain wmr. LciQ;e prinat1c . cryta1a' of .aize up to ,..,. as 62 20 21, ie, Nytal 300 encl Nyt&l 400 an th.a omc 1:1atedol I t:he fo1:11or io much co.nrue1: ~ ..: : .20 x 40 ad eoae. real l01a1 needle cryatals of size about 2 X 500. _. 62 35 00 Talc, FlakyGranular, Very Fine, IT, DM Fine powder of particle size Similar to 6% 40 00 but . obout 1-S11, m.a.o.y crystal contains le11 talc es.ore needles of obout 1 ~ LS, chamoeite, apprO'ldmately a few largar priamatic the HSH UIOUDt of cryatal.a of uout 10 x 120 tremolite. in 11:ta. 0134456789999 COMPANY CONFIDEN'IIAL ADP...8461 -4- Sample, Cod<: nnd SuppHt.t: Obaerva tioo s Kic r oocopy X-Rny Dff fr-M tion 62 36 24, Similar to 62 35 00 in Talc, Ht-Fioe 80, particle size and shape, DM Talc, Mg,S140,o(OH)2, ASTM Card 13-558, Tremolite, Ca2Mg 1Si,02 1 (0H)2, ASTH Card 13-437, 62 22 00, Talc, A.8bestine, SX, IT Similar to 62 35 00, but the crystal needlas are several time longer and the priBDatic crystals are 2 to 3 times wider. Talc, Hg,Si40ap(OR)a, ASTM Card 13-558, Tremolite, ASTM Card 13-437. Probably contaioa 1caall aaount of cheyaotih asbestos, ASTM Card 9-444. 62 21 21, It 18 cov:spoaed of the Sa111e aa 62 22 00. It appear Talc, Fibroue, followirlg: that both 62 21 21 and tT l, . Pine p01o1do~ of parti- 62 l2 00 are of the 111111e I" cle etze ln the l-5p range. material but different Z; SClll8 prinat1c cry- grinding grades, the latter I atala of abo~~- 16 x 45 has finer paTticle 1be. .....1. in aize. I 3. Some cryatal needl of 1ize abo~t l x 4Su. 4. SIU.l.1 amount of fiber1 ot 11:e up to 18 ~ 4~i eacb ia a . s-b1md.le.. ot . pua .. , ll ..el. .fi.b. r.i.l.a. .. .' PI ct!SHCM:: All tho 11lu ware .obtained from the 11111 room in th tt.iaearch Canter except 62 21 ~l and 62 32 2~ which vere submitted by Joe 'l'honton. ofIn caeea vbere there, are several eupplieta of tile talcs vtth the HU code oumber, the ti.De tha euppliel' of the apecUic talc 1apl anal.yud 1a .IID~ ~va1labl~f . ... . lt 1a a.oticcable that, the tilca from Eaat.ero Hagneaie are all andcl6cn, wntle tllotte from Deurt: Mineral and - York. Talc are &11 ~inatad. Tbe t4.lcs fron i,bitakn, Cl.ark Oaniele and Udted Sierra may or 11ay not be contaminated with tr4!'!!10lite._ . Microacopic obaervationareveal the color, particle aize, and particle ohape. X-ray diffraction analysis give~ the chemical c:11~poettton and crystal structure of the aample. Materials o!.differant cheudcal coapoaition and/or different crystal otructu?O 1t1lght took alike under the maoacope. ~-~'<i,il;<,,:. -;_ 0134456789999 ' Apr-8461 , _,.. loeh lhryeotilo (uboeta) and antiaoritH (noa-aebucoa) a,pro:a. mt to tht ell!lla formula Kf1 SiaO(OB) .ad have very eini.l.ar Xray powde r pot torn.a alt-houah the chryaotilee are f n,rou11 a:nd the anti1artcu are l aracllar. Kicroecopie examination ie vary helpful for their ditferanttation, : ... . .. . . '. . ~. "'. :~....... ~~ . : .:."' .'.. .. " .... .....;..;..... '' ' 4 I/ .... .. .~ -.' -~ ..I ... . . ,.....,.:...,..,_....~.:~ .. .. ,.~.:. .. r. ' .. . ......_ " - .......... ......t. ........... 't -- -.. __ .,. .-. _._.."' -- _...___ .....~ ,..... ....._ 0134456789999