Ibyerekeye iki kintu
- Imiti irwanya imiti --- Irashobora gukoreshwa muri 45% yumuti wa acide sulfurike na 32% ya hydroxide ya sodium hydroxide ubudahwema, ibereye inganda zo gucapa no gusiga amarangi.
- Byakozwe neza --- Ibikoresho binini kandi biramba.Irinzwe cyane kubintu.