1. Mmepụta nke ime akwụkwọ na eriri eriri;
2. Mmepụta ncha, ihe nchacha na-edozi ahụ na abụba abụba na-edozi ahụ yana nchacha nke osisi na mmanụ anụmanụ;
3. Dị ka onye na-ahụ maka desizing, onye na-akpachapụ anya na onye na-ere ahịa maka owu na ụlọ ọrụ akwa na akwa;
4. Mmepụta nke borax, sodium cyanide, formic acid, oxalic acid, phenol na ndị ọzọ;
5. Nchacha nke ngwaahịa mmanụ ala ma jiri ya mee ihe n'ime mmiri na-egwupụta mmanụ na ụlọ ọrụ mmanụ ala;
6. Dị ka acid neutralizer, onye na-ahụ maka peeling, decolorant na deodorant maka ngwaahịa nri na ụlọ ọrụ nri;
7. Dị ka alkaline desiccant.
