problem with performic yields

[abacus]

Ketone can easily be distilled at reduced pressure up to 200DegC with no loss of yield IME so don't get too worried about losing yield at the temperatures you distill at.

74% molar yield from buffered performic (including hydrolysis refluxing for 3 hours) is exactly as expected.

Abacus

[carcrash]

Spark plug grease. 
Not a chemist I just follow directions on the box mix