(chemistry, obsolete) nitre fused and cast into little balls

(chemistry, dyeing) The double chlorides of (stannic) tin and ammonium, formerly much used as a mordant for madder and cochineal.

(dyeing) stannous chloride, especially when used as a mordant

(chemistry, obsolete) succinic acid

(chemistry, obsolete) A salt of the oxy type, formerly regarded as composed of two oxides, an acid and a basic oxide.

hydrochloric acid

An arrangement for the natural evaporation of sea water for the production of salt, employing large shallow basins excavated near the seashore.

(chemistry, obsolete) boric acid

(US) A flat piece of ground covered with saline efflorescences.

(chemistry, obsolete) sodium carbonate