Qhia peb cov khoom tshiab Solvent Black 5, tseem hu ua nigrosine cawv, zoo nigrosine dub dye zoo meej rau tag nrho koj cov khau polish dyeing xav tau. Cov khoom no tau siv dav hauv kev lag luam khau rau xim thiab tuag tawv thiab lwm yam ntaub ntawv thiab peb txaus siab muab rau peb cov neeg siv khoom.
Cov kuab tshuaj dub 5, tseem hu ua nigrosine dub dye, nrog CAS NO. 11099-03-9, muab cov xim dub khaus khaus, paub txog nws ntau yam thiab sib haum nrog ntau yam kev siv, xws li roj pleev xim, txheej thiab yas. Solvent dub yog tsim tshwj xeeb thiab tuaj yeem siv ua Khau Polish Dyes.