ろくフッ ふっか硫黄 いおうじゃありませんでした
roku fukka iōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 六フッ化硫黄

1. It was not sulfur hexafluoride.

Past/Perfective
Negative
Polite
Terminal Form
Chemistry