Tumbirma (koprum) kashi ne na ƙarfe, shi ne kuma sauye sauye wani ƙarfe na turanci, lambar orange, na orange na jan launi a cikin tsarin sa. Cututture, high thermal da lantarki da kuma kebul da na lantarki, abubuwan lantarki sune kayan da aka fi amfani da su, ana iya amfani dasu azaman kayan gini, ana iya amfani da su nau'ikan allura. Allo alloyes suna da kyawawan kaddarorin na kayan masarufi da karancin lantarki, wanda mafi muhimmanci su ne tagulla da tagulla. Tumbata ita ce baƙin ƙarfe mai ban tsoro wanda za'a iya sake amfani da shi sau da yawa ba tare da lalata kaddarorinta ba.

Salts na ƙarfe, fili mai jan ƙarfe, galibi launin shuɗi ne a cikin ions na hydration da kore a cikin ligands na chlorine. Su ne tushen launi don ma'adanai kamar azurite da turquoise kuma an yi amfani da tarihi a matsayin alamu. Matsakaicin tsarin tagulla yana samar da Verdigres (carbonate na ƙarfe na jan ƙarfe). Artorative Art yafi amfani da jan ƙarfe da jan ƙarfe - dauke da alamu.

Jan ƙarfe yana ɗaya daga cikin farkon metiles da mutum amfani da shi. Tun da wuri kamar lokacin prehistoristic, mutane sun fara buɗewa - rami na rami kuma suna amfani da shi don yin makamai, kayan aiki da sauran kayan aiki. Amfani da jan ƙarfe yana da tasiri mai zurfi game da ci gaban wayewar ɗan adam. Jan ƙarfe karfe ne wanda aka samo a cikin ɓawon burodi na ƙasa da teku. Abubuwan tagulla a cikin ɓoyayyen ɓawon ƙasa sun kusan 0.01%, kuma a cikin mutum na tagulla na tagulla, taguwar tagulla na iya kai 3% ~ 5%. Mafi yawan jan ƙarfe a cikin yanayin ana samun su a mahadi da ake kira tagulla na tagulla.

Ayyukan jan ƙarfe ba shi da ƙarfi, da baƙin ƙarfe da tagulla na iya maye gurbin tagulla. Jan ƙarfe wanda ba zai iya shiga cikin acid din ba.