1. Ukunyibilika: Emanzini,Nigrosine Blackyenza isisombululo se-bluish-purple, ebonisa ukunyibilika okulungileyo, okukuvumela ukuba usebenzisane ne-hydroxyl okanye amaqela e-amino kwizinto zefayibha, ngaloo ndlela ufezekise ukudaya.Ukongezwa kwesisombululo se-sodium hydroxide kubangela ukubunjwa kwe-brownish-purple precipitate.I-Nigrosine Black iyanyibilika kwi-ethanol, ibonisa umbala oluhlaza okwesibhakabhaka, kwaye kwi-asidi ye-sulfuric concentrated, ibonakala iluhlaza okwesibhakabhaka;phezu kokuhlanjululwa, itshintsha ibe mfusa ngokumila kwemvula.I-Nigrosine Black iphantse yanganyibiliki kwi-ether, i-acetone, ibenzene, i-chloroform, i-petroleum ether, kunye neparafini engamanzi.
2. Ugcino:Nigrosine Blackkufuneka igcinwe kude nokunxibelelana nee-oxidizing agents ngexesha lokusetyenziswa.Xa ugcina, qinisekisa ukuba isitya sokugcina sivalwe ngokuqinileyo kwaye usigcine kwindawo epholileyo neyomileyo.
| Inkcazo |
| Igama lemveliso | Nigrosine Black Granular |
| I-CINo. | Iasidi emnyama 2 (50420) |
| Imbonakalo | I-Black Shining Granular |
| Umthunzi | Iyafana noMgangatho |
| Amandla | 100 % |
| Ukufuma (%) | ≤6 |
| Uthuthu (%) | ≤1.7 |
| Ukukhawuleza |
| Ukukhanya | 5~6 |
| Isepha | 4~5 |
| Ukuhlikihla | Yomile | 5 |
| | Imanzi | - |
