凝集 ぎょうしゅう ざいじゃありませんでした
gyō shu uzaija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 凝集剤

1. Was not a coagulant.; Was not a flocculant.

Past/Perfective
Negative
Polite
Terminal Form
Chemistry