Recv failure: Connection was reset

Recv failure: Connection was reset

浓硝酸在光照下会分解出二氧化氮而呈黄色，所以常将浓硝酸盛放在棕色试剂瓶中，且放置于阴暗处。冷的浓硝酸能使铁铝钝化。热浓硝酸的不会使其钝化。