Jaallaha Chrome, oo kiimiko ahaan loo yaqaan chromate lead (PbCrO₄), waa midab dhalaalaya oo firfircoon oo taariikh ahaan loogu dabaaldego midabkiisa adag. Markii ugu horreysay waxaa sameeyay farmashiistaha Faransiiska Louis Nicolas Vauquelin sanadkii 1809, si dhakhso ah ayay caan u noqotay iyadoo ah beddel la awoodi karo oo ka duwan midabyada jaalaha ah ee dhaqameed sida orpiment. Magaca midabku wuxuu ka yimid chromium, oo ah curiyaha la helay intii lagu jiray tijaabooyinka Vauquelin ee ku saabsan crocoite-ka macdanta, oo ah isha dabiiciga ah ee chromate-ka lead.
Soo saarista jaallaha chrome waxay ku lug leedahay geeddi-socod roobeed kiimiko ah. Cusbada rasaasta waxay la falgashaa isku-dhafka chromate ama dichromate ee ku jira xal biyood, iyagoo sameeya walxo yaryar oo ka mid ah chromate-ka rasaasta. Iyagoo hagaajinaya xaaladaha falcelinta, soosaarayaashu waxay soo saari karaan midabyo kala duwan, oo u dhexeeya jaallaha huruudka ah ee primrose ilaa liin qoto dheer oo qani ah. Cabbirrada walxaha yaryar waxay soo saaraan midabyo fudud, halka walxaha waaweyn ay abuuraan midabyo madow. Si loo xoojiyo xasilloonida iyo waxqabadka, daawaynta dusha sare ayaa badanaa la adeegsadaa, iyadoo laga ilaalinayo midabka burburka deegaanka.
Waqtiga boostada: Juun-13-2025