| Rating | Solver | Clue |
|---|---|---|
| SODA | Sodium carbonate | |
| SALSODA | Sodium carbonate | |
| NATRON | Native sodium carbonate. | |
| NITRE | Native sodium carbonate; natron. | |
| VALLET'S PILLS | Pills containing sulphate of iron and carbonate of sodium, mixed with saccharine matter; -- called also Vallet's mass. | |
| SPEISS | A regulus consisting essentially of nickel, obtained as a residue in fusing cobalt and nickel ores with silica and sodium carbonate to make smalt. | |
| TRONA | A native double salt, consisting of a combination of neutral and acid sodium carbonate, Na2CO3.2HNaCO3.2H2O, occurring as a white crystalline f... | |