I-Chrome yellow, eyaziwa ngeekhemikhali njenge-lead chromate (PbCrO₄), yipigment ekhanyayo neqaqambileyo edume ngokwembali ngombala wayo oqaqambileyo. Yaqala ukwenziwa ngo-1809 yingcali yekhemisti yaseFransi uLouis Nicolas Vauquelin, yafumana udumo ngokukhawuleza njengendlela engabizi kakhulu kunepigment yendabuko yemthubi efana ne-orpiment. Igama lepigment livela kwi-chromium, into eyafunyanwa ngexesha lovavanyo lukaVauquelin kwi-crocoite yeminerali, umthombo wendalo we-chromate ye-lead.
Ukuveliswa komthubi we-chrome kubandakanya inkqubo yokukhupha iikhemikhali. Iityuwa ze-lead zisabela kunye neekhompawundi ze-chromate okanye ze-dichromate kwisisombululo samanzi, zenze amasuntswana amancinci e-chromate ye-lead. Ngokulungisa iimeko zokusabela, abavelisi banokuvelisa imibala eyahlukeneyo, ukusuka kumthubi okhanyayo we-primrose ukuya kuma-orenji anzulu, atyebileyo. Ubungakanani bamasuntswana amancinci buvelisa imibala ekhanyayo, ngelixa amasuntswana amakhulu enza imibala emnyama. Ukuphucula uzinzo kunye nokusebenza, unyango lomphezulu luhlala lusetyenziswa, lukhusela umbala ekuwohlokeni kwendalo.
Ixesha leposi: Juni-13-2025