I bought acetone, hydrogen peroxide (in the form of a wood bleaching kit), and hydrochloric acid together in 2002 at a Home Depot and never got the slightest bit of attention.
I also bought an 80 pound sack of ammonium nitrate from a fertilizer dealer in 2002 with cash. I didn't show ID. The employees didn't grill me at all. I was pretty surprised, actually. I thought there would be some sort of tracking in place six years after the OKC bombing and 1 year after the 9/11 attacks. Maybe they only start tracking when you try to buy it by the tonne. Maybe my appearance (clean shaven white guy with glasses, no tattoos) gave me a pass where other sorts of buyers might need to show ID or explain why they're buying.
https://www.businessinsider.com/oklahoma-city-bombing-ammoni...
" the new legislation will require anyone buying more than 25 pounds to register, be screened against a known terrorist list, and require any thefts to be reported within 24 hours. "
It also gets you a visit from the feds. Those sorts of purchases are tracked very closely since Mcveigh.