Document 2j4e67gN3zX9qVm565GkbMEaa

TEBNECOinter- OFFICE MEMO CHEMICALS, INC. \TO From Subject H.B. Carr F.W. Kanzler AT Burlington at Burlington date March 10, 1971 Copy to ^File Evaluation of Vinyl Acetate Monomer (MVAc) Reference: Memos F.W. Kanzler to H.B. Carr, dated 10/29/70 and 2/27/71 As outlined in the referenced memos, gas chromatographic an alysis of MVAc was added to the routinely performed IR analysis run on the subject raw material. Table I (attached) shows ad ditional analyses made since the latter referenced memo. While both acetaldehyde and crotonaldehyde were tentatively identi fied as the main impurities in the MVAc samples, it is suspected that other impurities are masked by the two main impurities. Therefore, an attempt will be made to (1) achieve a better sep aration and (2) quantify the impurities by direct calibration. Table II (attached) shows the results from a MVAc sump sample. All of the levels were calculated on the basis of area compen sation. Attachments (2) . FWK/Jt F.W. Kanzler COLORITE 013673 TABLE I '\ Date Supplier 2/VYl UC Tank Car No. NATX 22363 Acetaldehyde Tr Crotonaldehyde 46 MVAc $ 99 0 99 2/9 A l USI ACA 82996 16 ND 99.99 2/16A1 UC UTLX 48827 2/23A1 Celanese CELX 22515 2/27A i UC T 106 3/1A1 UC NATX 22563 3/8A1 UC RATX 6090 5 15 1 3 1 3 99.99 3 99.99 79 99.99 76 99.99 76 99.99 i i COLORITE 013674 TABLE II MVAc SUMP COPOLYMER RECOVERY Components Vinyl Chloride Acetaldehyde Crotonaldehyde Vinyl Acetate 1.27 15.07 0.22 83.44 COLORITE 013675