Appeal No. 2002-0834
Application 09/275,386
- the concentration of hydrogen peroxide has a ratio to the
concentration of fluoroborate anions that is from about
12.0:10 to about 20:1.0;
- the concentration of hydrogen peroxide has a ratio to the
concentration of nitric acid that is from about 0.50:1.0
to about 0.90:1.0;
- the composition also comprises propylene glycol in a
ratio to hydrogen peroxide, in the same concentration
units, that is from about 0.13:1.0 to about 0.30:1.0; and
- the composition comprises from about 0.46 to about 0.88
g/l of benzotriazole.
8. An aqueous liquid composition according to claim 7,
wherein:
- said second mass consists of from about 44 to about 70
g/l of nitric acid;
- said sixth mass of fluoroborate anions corresponds to a
concentration that is from about 1.50 to about 3.0 g/l in
the total composition and is derived from fluoroboric
acid, its salts, or both;
- the ratio of said sixth mass of fluoroborate anions to
said second mass is from 0.029:1.0 to 0.055:1.0;
- said fourth mass consists of hydrogen peroxide and
corresponds to from about 25 to about 40 g/l of hydrogen
peroxide in the total composition;
- said fourth mass has a ratio to said sixth mass of
fluoroborate anions that is from about12.0:1.0 to about
20:1.0;
- said fourth mass of hydrogen peroxide has a ratio to said
second mass of nitric acid that is from about 0.50:1.0 to
about 0.90:1.0;
8
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