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Title: Process for making solid-state radiation-emitting composition

The invention provides a process for loading an aerogel substrate with tritium and the resultant compositions. According to the process, an aerogel substrate is hydrolyzed so that surface OH groups are formed. The hydrolyzed aerogel is then subjected to tritium exchange employing, for example, a tritium-containing gas, whereby tritium atoms replace H atoms of surface OH groups. OH and/or CH groups of residual alcohol present in the aerogel may also undergo tritium exchange.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
6042964
Assignee:
SNL; EDB-93-121798
Patent Number(s):
US 5240647; A
Application Number:
PPN: US 7-753470
Contract Number:
AC04-76DP00789
Resource Relation:
Patent File Date: 3 Sep 1991
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; GELS; LABELLING; TRITIUM; ISOTOPIC EXCHANGE; ALCOHOLS; GASES; HYDROLYSIS; HYDROXYL RADICALS; SUBSTRATES; SURFACE PROPERTIES; TRITIUM COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL REACTIONS; COLLOIDS; DECOMPOSITION; DISPERSIONS; FLUIDS; HYDROGEN COMPOUNDS; HYDROGEN ISOTOPES; HYDROXY COMPOUNDS; ISOTOPES; LIGHT NUCLEI; LYSIS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; RADICALS; RADIOISOTOPES; SOLVOLYSIS; YEARS LIVING RADIOISOTOPES; 400703* - Radiochemistry & Nuclear Chemistry- Radioisotope Production; 400202 - Isotope Effects, Isotope Exchange, & Isotope Separation