Chrome yero, inozivikanwa nemakemikari se lead chromate (PbCrO₄), ipendi yakajeka uye inopenya inozivikanwa kare nekuda kweruvara rwayo rwakasimba. Yakatanga kugadzirwa muna 1809 nenyanzvi yemakemikari yekuFrance Louis Nicolas Vauquelin, yakakurumidza kuwana mukurumbira senzira inodhura zvishoma pane yero yemazuva ano yakaita se orpiment. Zita rependi iyi rinobva ku chromium, chinhu chakawanikwa panguva yekuedza kwaVauquelin pa mineral crocoite, tsime rechisikigo re lead chromate.
Kugadzirwa kweyero yechrome kunosanganisira maitiro emvura inonaya nemakemikari. Munyu welead unosangana nemakemikari echromate kana dichromate mumushonga wemvura, zvichigadzira zvidimbu zvidiki zvelead chromate. Nekugadzirisa mamiriro ekuita, vagadziri vanogona kugadzira mavara akasiyana-siyana, kubva kune yero yeprimrose yakapfava kusvika kune maranjisi akadzika, akapfuma. Saizi diki dzezvidimbu dzinopa mavara akareruka, nepo zvidimbu zvikuru zvichigadzira mavara akasviba. Kuti kuwedzere kugadzikana uye kushanda, kurapwa kwepamusoro kunowanzo shandiswa, kudzivirira pigment kubva mukuora kwezvakatipoteredza.
Nguva yekutumira: Chikumi-13-2025