Document 71DNb6GVZ75L9aJ1okpG1mbLV

beci C. Pmton/j. j. Roder 1630 F. L. Slayton 1630 J. S. Pullnan 1 Rovsnber 2* 1971 Mr. Vi Ulan Llntnar OOP Chemical Division Route 17 Mat Rutherford, R. J. 07073 Dear Mr. Llntnar1 Par our telephone conversation of Ror--bar 1, X an holding your purchase order, nuaber 19837* for two druse of Tharalnol PR-1. X undaratand tha Tharalnol PR-3 fluid la usad in flftaan aaall haatlng systaaa In tha production of flans retardant plastleltan and aroaa ehenloels for aoaaatlaa. Va ara concerned about potential leakage of tha heat transfer fluid Into tha and uae products In your plant. Aa X indicated during our aonvanation* tha Tharalnol PR-l heat transfer fluid contains polychlorinated biphenyls (PCBs) of various types. Tha PCS concentration in our environment has eoaa under the scrutiny of various govemaental agencies and scientific laboratories. Xn sons studies* certain PCBs have bean found to be a persistent anvlronaental aontealwant, and possibly* injurious to certain foms of bird, aquatic and anlael life. Accordingly* It Is very Important that PCBs be kept out of the food chain. We feel that any leakage of the Tharalnol PR fluid into products used in cosnetles would be an undesirable situation. Xn this regard* we suggest you consider the use of an alternate Thamln^i heat transfer fluid -- one that does not contain PCBs. Two fluids* Tharalnol 53 and Thernln '1 66* are considered to be satisfactory alternates for the Tharalnol PR-1 fluid pre sently In your systea. X have attached physical property data on Tharalnol 55 and Tharalnol 66 fluids. Selection of Thereinol 55 or 66 can be based on your heat transfer fluid use teeperature. At taaperatures below 585*P Tharalnol 55 would be suit able. At taaiperatures above 525*P Themlnol 66 would give long tern performance. Tharalnol 66 can be used at teenersturns near 650*P* if required. MONS 09^334 -2- Neither Thereinol 55 nor Thsrnlnol 66 here the fire resistant ohereeterlatle* of the Thernlnol FN-1 fluid. We would reeo--end that you eonteet your insuring agency regarding the need for additional protective devices to silnlnlae fire risk when usii either of the alternate fluids. The price on Thernlnol 55 in one to four drua quantities la $1.05/gallon. FOB Alvin. Texas. The price on Thernlnol 66 in one to four drua quantities la $0.40/lb. ($3.3Vgllon) FOB Anniston, A labaaa. We encourage a ohange frost the Thernlnol FR fluid at this tine. All Fit fluid drained fron your ayeten should be returned freight prepaid to our Sauget. Illinois plant for Incineration, we will waive our noraal lnolneretlon charge of 3^/lb. on thla oonversion. Again. X will hold your purchase order until you have had tine to evaluate the alternate Thernlnol fluids for your application. If you have any questions concerning thla conversion please con tact jay Pu linen, our Thernlnol representative in New York City, or m In 8t. Louis. Jay Fullnan's New York address is: Monsanto Company 277 Fark Avenue New York, W.Y. 10017 (212) 922-4111 Ycry truly yours. os Enclosures D. E. Roush Product Specialist Heat Transfer Fluids HONS