Related Clues:
- Lab flask contents, perhaps
- Etchers' fluids
- Formic and folic
- Basic solutions
- Oven cleaner chemicals
- Tummy upsetters
- Etching supplies
- Caustics in soaps
- They turn litmus red
- They have a sour taste
- A firm thousand got Timothy back to do the dirty deed
- Lab chemicals
- Tums targets
- Burning solutions
- Corrosive compounds