塩安 しおやすソーダ ほうではありませんでした
shio yasu sōdahōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 塩安ソーダ法

1. Was not the Solvay process.; Was not a salt-ammonia method.

Past/Perfective
Negative
Polite
Formal Register