自己 じこ反応 はんのう せい物質 ぶっしつじゃないです
jikohanno useibusshitsujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 自己反応性物質

1. It is not a self-reactive substance.

Negative
Polite
Casual Register
Chemistry