hi
if yr getting green flames when you reheat you may still have pickle solution on the metal (even if it is dry) it is always a good idea to rinse / ultrasonic something that has been in pickle or acid especially hollow stuff, even leaving it in the soda for a long time may not help as warm pickle gets in everywhere. I have often soldered something hollow thats been in acid and the whole thing explodes and covers me in acid. fun fun fun great for the nerves and eyesight.
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