工(Gong)业(Ye)五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)是(Shi)气(Qi)体(Ti)还(Huan)是(Shi)固(Gu)体(Ti)?五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)供(Gong)应(Ying)商(Shang)讲(Jiang)述(Shu)常(Chang)温(Wen)下(Xia)，(?)五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)不(Bu)是(Shi)气(Qi)体(Ti)而(?)是(Shi)固(Gu)体(Ti)。(?)

五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)虽(Sui)是(Shi)固(Gu)体(Ti)，(?)做(Zuo)颗(Ke)粒(Li)很(Hen)小(Xiao)，(?)可(Ke)直(Zhi)接(Jie)经(Jing)呼(Hu)吸(Xi)道(Dao)进(Jin)入(Ru)体(Ti)内(Nei)。(?)更(Geng)严(Yan)重(Zhong)的(De)是(Shi)，(?)五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)是(Shi)易(Yi)溶(Rong)性(Xing)酸(Suan)性(Xing)氧(Yang)化(Hua)物(Wu)，(?)溶(Rong)于(Yu)水(Shui)生(Sheng)成(Cheng)中(Zhong)强(Qiang)酸(Suan)磷(Lin)酸(Suan)，(?)对(Dui)呼(Hu)吸(Xi)道(Dao)的(De)腐(Fu)蚀(Shi)都(Du)很(Hen)严(Yan)重(Zhong)，(?)所(Suo)以(Yi)五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)是(Shi)一(Yi)种(Zhong)空(Kong)气(Qi)污(Wu)染(Ran)物(Wu)。(?)

五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)是(Shi)一(Yi)种(Zhong)无(Wu)机(Ji)物(Wu)，(?)化(Hua)学(Xue)式(Shi)P2O5，(?)由(You)磷(Lin)在(Zai)氧(Yang)气(Qi)中(Zhong)燃(Ran)烧(Shao)生(Sheng)成(Cheng)，(?)为(Wei)白(Bai)色(Se)无(Wu)定(Ding)形(Xing)粉(Fen)末(Mo)或(Huo)六(Liu)方(Fang)晶(Jing)体(Ti)，(?)易(Yi)吸(Xi)湿(Shi)，(?)360℃(?)升(Sheng)华(Hua)，(?)溶(Rong)于(Yu)水(Shui)产(Chan)生(Sheng)大(Da)量(Liang)热(Re)并(Bing)生(Sheng)成(Cheng)磷(Lin)酸(Suan)，(?)对(Dui)乙(Yi)醇(Chun)的(De)反(Fan)应(Ying)与(Yu)水(Shui)相(Xiang)似(Si)，(?)相(Xiang)对(Dui)密(Mi)度(Du)2.39g/cm，(?)熔(Rong)点(Dian)340℃(?)，(?)为(Wei)酸(Suan)性(Xing)氧(Yang)化(Hua)物(Wu)有(You)腐(Fu)蚀(Shi)性(Xing)，(?)不(Bu)可(Ke)用(Yong)手(Shou)直(Zhi)接(Jie)触(Chu)摸(Mo)或(Huo)食(Shi)用(Yong)，(?)也(Ye)不(Bu)可(Ke)直(Zhi)接(Jie)闻(Wen)气(Qi)味(Wei)。(?)