HE formulation. Quarterly report, January--March, 1968

RX-09-CB and LX-07 were made to supply material for testing. Both were made in the 300-gallon kettle in 250-pound batches which were then blended into 1,000-pound lots. An RX-09 with no plasticizer (HMX and DNPA) was made in the 30-liter reactor for special gap and friction studies. Approximately 20 pounds of DNPOH, supplied by Aerojet, was converted to DNPA and polymerized by the emulsion polymerization process. Work on high surface area PETN continued by precipitation recrystallizing two 10 kg batches; one to supply material for detonator applications to Mound Laboratory and the other to supply high surface area PETN to LRL for special applications. Surface area for this batch was 21,200 cm{sup 2}/gm. The detonator material had a surface area of 14,500 cm{sup 2}/gm. A system duplicating the English method for achieving high surface area has been completed with the installation of the 8-inch Micronizer, and two preliminary trials of one pound each have been made. Surface areas were 20,900 and 14,900 cm{sup 2}/gm. The system is being modified slightly to eliminate the problems incurred during these trial runs and preparations are in process for making a 10 kg batch to be shipped to Mound