紫銅(tong)(tong)(tong)又(you)名紅(hong)銅(tong)(tong)(tong)就是(shi)銅(tong)(tong)(tong)單質(zhi)(zhi)，因(yin)其顏(yan)色(se)為紫紅(hong)色(se)而得名。各種性(xing)質(zhi)(zhi)見銅(tong)(tong)(tong)。紫銅(tong)(tong)(tong)是(shi)工業純銅(tong)(tong)(tong)，其熔點為1083℃，無同(tong)素(su)異構轉變，相對密度為8.9，為鎂的(de)五(wu)倍。同(tong)體積的(de)質(zhi)(zhi)量比普通鋼重約15%。因(yin)其具(ju)有玫瑰紅(hong)色(se)，表(biao)面形(xing)成氧化膜后(hou)呈紫色(se)，故一般(ban)稱為紫銅(tong)(tong)(tong)。它是(shi)含(han)有一定(ding)氧的(de)銅(tong)(tong)(tong)，因(yin)而又(you)稱含(han)氧銅(tong)(tong)(tong)。