Infrared Study on β-Radiolysis in Methanol-T₂O System

Abstract

3-radiolysis in a methanol-T 2 0 system in a gaseous state was studied by means of infrared spectroscopy over a period of 10 months. Slow formation of CHjTOH was found. The main product was CO, with small amounts of CH", HC0 2 CH 3 , CH 2 (OCH 3 ) 2 and (CH 3 )JO; ethylene glycol and H 2 CO were not found. This result, which is quite different from that of 7-radiolysis, is explained in terms of surface reactions on stainless steel.

Infrared Study on β-Radiolysis in Poly (Vinyl Alcohol)-T2O System

“…Since the thickness of film used was about 10 μπι, we can expect that the energy of ß-rays is almost absorbed in a film, referring to a procedure used in the previous study [4], Since 1/2.9 mole of tritium is contained in every 1 mole of vinyl alcohol at t = 3, we have the absorbed dose of 7.7 χ IO 4 erg/ g · sec or 67 Mr/g · day, which is comparable with absorbed doses used in y-radiolysis [6,7,9]. The absorbance of the Ο -H stretching decreased gradually in t > 3, as shown in Fig.…”

The Infrared Spectrum of Polypyrrole–T2O System

“…In this respect, we can expect large structural changes by T /3-irradiation (average: 5.7keV) in the presence ofT 2 0 (H 2 0), which gives rise to 0 2 and H 2 through ionic and radical intermediates. The advantage of using T 2 0 is: (1) T with high density is substituted in N-H groups and (2) no surface effect is expected because the substitution by T takes place in whole PPy.…”