Technical Summary of MIS Studies of Cl Transport and Reactivity
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Chloride containing deposits have been detected during destructive examination (DE) of 3013 inner and convenience containers that had contained impure plutonium oxide/salt mixtures. The deposits were found on surfaces that were not in direct contact with the oxide/salt mixtures. EDX analysis of deposits associated with corrosion pits in the inner container closure weld region (ICCWR) show Cl but no metal cations from the oxide/salt mixture (Na, K, Ca, Mg, or Pu) that would indicate particulate transport of the chlorine to that location. Powder x-ray diffraction analysis identified a coating found on the wall of a convenience container as ammonium chloride (NH4Cl).1 The location of the NH4Cl coating on the wall above the material suggest that it was made by a gas-phase reaction, one possibility being a reaction between ammonia (NH3) and hydrogen chloride (HCl) gases as shown in equation (1). It has been shown that NH3 can be formed in a gasphase reaction between nitrogen (N2) and hydrogen (H2) in a radiation environment, equation.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1177538
- Report Number(s):
- LA-UR-15-22378
- Country of Publication:
- United States
- Language:
- English
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