Document G59pMNBwjnvzyBMk9oo6pxDqq

) boo 1800 J. A. Kris a W32SC -Cl^r*U>*/r- Kaash 1800 D. R. Hanson Octobap 5, 1972 HP. ^nhort ftol1tngawnrth loo AlunT P.. BOXJ' r, Washington 98248 Dear Mr. Hollingsworths Thla will oonflrai your Ootobop 3, 1972 phono oonvaraatlon with* our Mr. Don Roush. Wa appraoiatad tha opportunity to rarlow with your oonpany onea again tha daalrablllty or dlaoontlnulng tha uaa of Thamlnol PM fluids and to ralay Monsanto's oontlnuad aphd*IB"'#am-th''rafUm to us of PCB containing flulda for propar disposal by high tsaparatura lnolnaratlon. As you know from pravlous oorrsapondanoa, Monsanto has raapon- dad to tha lnoraaalng oonoam about PCBo* by confining aalas to oartaln llaitad and uaa applloatlona. ..__^ Zn May, 1972 tha Fadaral Oovsrnaant's Task Foroa on PGBs raoommanded agalnat tha uaa of FOBS as haat tranafar flulda. Rnoloaad la a copy of a auaaal^artlola on thalr proposals for your ravlaw. Alao aneloaad la a oopy of a Wall Straat Journal artlola whloh highlights rastrletlv* aotlon proposad by tha FDA. In April# 1971. our Mr. Papagsorga aant a lattar addraaaad to "Plant Managar" of your plant. You nay want to ravlaw thla lattar for additional baekground on this PCB subjaot (a copy of whloh la anoloaad). You My ba awara that sobs Fadaral and Stata aganelaa ara aaapllng plant affluants and narlna Ufa looking for# saorg othar things# PCB ohaalstry. Zf PCB la found# tha aganolas tand to datarnlna tha PCB aourea. In light of tha abora, wa ballava you should sarloualy oonaldar prompt oonvaralon of thalr Tharmlnol FR ayatam. Polyohloroblphanyls MQNS 09<s379 Z have enclosed literature on two possible replaosaent fluids, Monsanto' Theralnol 55 and 66. Theralnol 66 has ths higher raaxlaua operating tsnpemturs (650* vs. 575**.). It is, of oourss, your dsolslon what produet or systea you ohoosa as a replacement for Thomlnol yR. Knelowed is a pries bulletin for T-55 and T-66 produets. We want to point out that unlike the Theralnol I* produets, Theralnol 55 and 66 are not classified as fire-resistant heat transfer fluids. Consequently, you should oonslder the use of proteetlve devices to nlnlnlse any added fire risks. We sug gest you eonsult with the insurer of your property and the nanufaoturer of your equipment relative to this natter. Zn order to proteet Thenslnol 55 or 66 fron oxidation, we sug gest the use of an Inert gas blanket on your expansion tank aysten to preolude air oontaot with hot fluid, Xf you use a reolroulatlng line to the expansion tank, this should be valved oloaed during the noraal systea operation. A snuffing devloe should be Installed on the ooaibustlon ohaaber If you have a gas fired heater. Steaa, oarbon dioxide or ni trogen nay be used to extinguish a furnace fire caused by a heater tube rupture. The snuffing devloe nay be aotlvated by a high tenperature swlteh In your furnace stack. Please refer to the enclosed Theralnol Conversion Bulletin for additional lnforaatlon. When converting your aysten to Theralnol 55 or 66, we suggest you thoroughly drain the Theralnol MR. Blush the piping, equlpnent and expansion tank with T-55 or a non-ohlorlnated solvent and again drain Into leak-free druas. If T-55 Is selected as the flush fluid. It nay be advantageous to operate the systen several days before draining to loosen and renove aysten soil. You nay experience sone fine naterlal collecting around puap seals, resulting In sone fluid leakage, Suoh naterlal Is probably Iron salts fron the PR-1 systen. It nay be necessary to spot flush the puap and other "hold up" equlpnent In order to effectively renove such naterlal and to naxlnlse renova1 of the PR fluid. Knolowed is a bulletin on punp seal probleas. HONS 094380 Monitoring Converted Sratea To monitor your Thomlnol 55 or Thomlnol 66 rill( wo suggest checking tho vlsooalty, mold number and appearance of tho fluid for portioloa on at loaat a aionthly baals. An lnoroaao In aoldlty to 0.3 - 0,5 and tho fomatlon of portioloa in tho fluid mixture aro algna of decomposition of tho Thomlnol by aold fornlng froai rooldual PR-1 fluid. Should tho partlolo oontont build to approxlaatoly ljt, 1 would auggoat olthor fil tering of tho Thomlnol mixture or a ohange of fluid. A doubling of fluid vlsooalty la alao an lndloatlon of fluid de composition. Upturn of Pood Fluids for Inolnoratlon Wo will, until further notleo, continue to wake available our high teaperature Inolnoratlon aorvloo for proper dlapoaal of any Thomlnol PR fluid or flulda oontaainatod with PCBs which your eoapany may hava on hand, on tho following baalai 1. Wo will charge 3^/pound to lnelnerote flulda aont freight prepaid to our Sauget, Zlllnola plant fort a) Thomlnol PR eerlea flulda b) Thomlnol 55 or 66 flulda whloh nay oontaln PCBa fomorly In your ayatoa. 2. Wo will ohargo 5^/pound to Incinerate non-aqueous, non- Konaanto flulda oontaailnated with PCB if aont freight prepaid to our Sauget, Zlllnola plant. When you have flulda for return, pleaae oontaot ae at (314) 694-2500 aa to tho fluid typo, nuaber of druaa and any apeolal lnvololng prooodum you may require. Z will aend you tho noooaaary pra-addraaaod drua return labola whloh wo requoat bo uaod. Wo oannot handle aquooua aolutlona or oollda (l.o. aawduat, rage or sludge). for thoao aatorlala, wo auggoot you ohook local authorltlea and your own environmental departaont for an approved land fill or dlapoaal aothod. Our Sauget plant la lnatruotod to refuae receipt of ocntalnom containing oollda, and to return aaae to tho sender at tho sender's expense. MONS 094331 ) -4- Zf your lyitn drain and flush approximates 4ooo gallons* you nay want to return the fluids in one of our 4000 gallon rail tank earn that we have dedleated for this aervloe. If you go this route, we will need a nlnlaun of three weeks lead tine to finalise arrangeaents. Thank you for your cooperation and please feel free to eontaot me at (314) 694-2500 If there are further questions. Sincerely. PWOios Bhelosuree April rapageorge Letter Oovt. Task Pores Letter PM Article T-55 bulletin T-66 bulletin Conversion bulletin Prloe bulletin Heohanlcal Seal bulletin Paul W. Oann Projeot Coordinator Heat Transfer fluids MUNS 094382