@jkoniecki, @rleder,
Interesting and valuable analysis on the Q-O compounds.
The KOH cleaning disturbs me a bit as there are serious health and safety hazards in handling KOH. From the MSDS:
Potential Acute Health Effects:
Very hazardous in case of skin contact (corrosive, irritant), of eye contact (irritant, corrosive), of ingestion, of inhalation.
The amount of tissue damage depends on length of contact. Eye contact can result in corneal damage or blindness. Skin
contact can produce inflammation and blistering. Inhalation of dust will produce irritation to gastro-intestinal or respiratory
tract, characterized by burning, sneezing and coughing. Severe over-exposure can produce lung damage, choking,
unconsciousness or death. Inflammation of the eye is characterized by redness, watering, and itching. Skin inflammation is
characterized by itching, scaling, reddening, or, occasionally, blistering.
Jack