1. soda, lye, sodium hydroxide (NaOH)

2. sodium (Na) (dated)

3. sodium carbonate (Na₂CO₃)

4. seepweed, sea blite, saltwort (plants, usually of the genus Suaeda, which produce sodium carbonate when burned)

5. prickly saltwort (Salsola kali, syn. Kali turgidum)