I'm uncertain as to the degradation rates of the chemicals you mention. Sorry.
But the un-decomposed materials may have been looking for more water.
Compost piles need to be monitored on a regular basis (and this varies from pile to pile, depending on its green/brown make-up). Before this year, my compost was always heavy on greens, so "occasional" watering was fine.
This year, I connected with a couple of rabbit rescue organizations and received boatloads of rabbit manure, hay, and litter. I didn't register how "brown/dry" this stuff was until MY WORMS DIED. I am now a repeat killer of worms.
So I imported more worms from my girlfriend and am watering my pile every day to every other day. Quite a difference! And my worms are happily taking over the pile.
So it could be lack of water and/or low frequency of turning that caused the materials not to decompose. In time, they will, never fear.
If you're using a front-end loader to turn the compost, you've got quite a pile going! Good for you!
USDA Zone 9, Sunset Zone 17