noun
ammonium chloride soda process
A specific industrial chemical process for producing soda ash (sodium carbonate) using ammonium chloride. Technical term used in chemistry and manufacturing contexts.
塩安ソーダ法は、かつてソーダ灰の製造に広く用いられた。
The ammonium chloride soda process was once widely used for producing soda ash.
Compound of 塩安 (ammonium chloride) + ソーダ (soda) + 法 (process). The exact historical derivation is uncertain, but the term describes a specific industrial method.