ホウケイ ほうけいさん しおではありませんでした
hōkeisan shiodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of ホウケイ酸塩

1. Was not borosilicate.; Was not a borosilicate.

Past/Perfective
Negative
Polite
Formal Register
Chemistry