NAOH
| Date | Clue |
|---|---|
| 2024-08-25 | Chemical formula for lye |
| 2020-11-11 | Lye, in chemistry class |
| 2020-08-31 | Lye, chemically |
| 2018-07-28 | Caustic soda, chemically |
| 2014-08-18 | Chemical formula for sodium hydroxide |
| 2013-12-27 | Caustic soda, chemically |
| 2012-12-30 | Drain cleaner, chemically |
| 2010-09-18 | Caustic soda, symbolically |
| 2010-06-20 | Caustic soda, to a chemist |
| 2010-01-11 | Sodium hydroxide, to a chemist |
| 2009-03-22 | Sodium hydroxide, chemically |
| 2003-12-05 | Sodium hydroxide, to chemists |
| 2001-08-05 | Sodium hydroxide, to a chemist |