化学纯度 meaning in English

chemical purity
pure chemically

All chemically pure art has this power to act upon us quickly and intensely
一切有化学纯度的艺术都具备这种迅速而强烈地影响我们的力量。
Purified water should be used where there are technical requirements for greater chemical purity
如果有更高的化学纯度要求，应使用纯化水。
It is because of its chemical purity that tragedy so effectively performs functions of catharsis
正是由于悲剧的这种化学纯度，它才非常有效地完成着它那净化感情的作用。