Document Vjw8m9Y9LwzZzEp5R2zG9maMj

CONFIDENTIAL Distribution Copy No. 1. Library 2. W. E. Alexander 3. R. D. Dunlop 4. H. K. Eckert-R. U. Haslanger 5- C. A. Hochwalt - St. Louis 6. w. R. Johnson 7. H. G. Johnson - St. Louis 8. W. H. Lane 9- L. Lederman - Dayton 10. J. R. Mares 11. H. E. Morris 12. N. N- T. Samaras - Dayton 13. R. H. Schlattman 14. H. G. Schleiche^oB 15- J. A. Sherred 16. J. R. Wilson - St. Louis 17. R. L. Heider 18. w. P. Yates MONSANTO CHEMICAL COMPANY TEXAS CITY, TEXAS RESEARCH PROGRESS REPORT AUGUST, 1952 project Vinyl Chloride Process Studies Job No. A-22-127 (17) Personnel Roth, Fox and Yates Current Objectives To determine the minimum amount of phenol needed to inhibit vinyl chloride monomer (VCM) at 35 and 45C for three months To study other possible inhibitors for VCM Summary and Conclusions Phenol, in concentrations ranging from 9 to 130 parts per million, is being tested as an inhibitor for VCM at temperatures of 35 and 45C. Samples containing lo and 25 parts per million phenol have been in the 45 bath for six weeks with no polymer formation. Samples containing iron wire but no other inhibitor at 35 and 45 showed no polymer after six weeks. VCM samples containing iron wire and 20 parts per million of phenol are also under observation at 45c. VCM containing 10 parts per million of p-nitrophenol showed polymer within 72 hours at 55C. CBY 1114668 RSV0030877 - 2- Job No. 'A-22-127 (17) Phenyl-p-napthylamine, p-conidendrol, a-conidendrol, p-tertiary butylcatechol, catechol, resorcinol and p-aminophenol at concentrations of 10 to 20 parts per million are also under observation at 45 as possible inhibitors for VCM. Future Ob.loctives To determine the minimum concentration of phenol required to inhibit VCM To study other possible inhibitors for VCM Description of V7ork Done Sample tubes were filled following the procedure given in Progress Report No. 16, July, 1952. CBY 1114669 RSV0030878