硝酸 しょうさんナトリウムでしょう
ashōsannatoriumudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 亜硝酸ナトリウム

1. Sodium nitrite, probably.; It will likely be sodium nitrite.

Polite
Presumptive
Conjecture
Chemistry