亜ヒ酸
also: あひさん
あ
ヒ
さ
ん
Meanings
1
arsenious acid; arsenous acid
Chemical term for H3AsO3; used in chemistry and toxicology contexts.
Arsenious acid is known as a highly toxic compound.
2
arsenic trioxide; white arsenic
Colloquial use for As2O3, often encountered in historical poisoning cases or traditional pesticides.
In the past, white arsenic was used as a rodenticide.