1. Sollubility: Ka metsing,Nigrosine Blacke etsa tharollo e boputsoa bo bopherese, e bonts'ang ho solubility e ntle, e lumellang hore e sebelisane le hydroxyl kapa lihlopha tsa amino ka thepa ea fiber, ka tsela eo e finyella ho daea.Ho eketsoa ha tharollo ea sodium hydroxide ho etsa hore ho thehoe metsi a sootho-pherese.Nigrosine Black e qhibiliha ka ethanol, e bonts'a 'mala o moputsoa,' me ka sulfuric acid e concentrated, e boetse e bonahala e le putsoa;ka mor'a ho hlapolloa, e fetoha pherese e nang le metsi a mangata.Nigrosine Black e batla e sa qhibilihe ho ether, acetone, benzene, chloroform, petroleum ether, le parafine e metsi.
2. Polokelo:Nigrosine Blacke lokela ho bolokoa hole le li-oxidizing agents nakong ea ts'ebeliso.Ha o boloka, etsa bonnete ba hore setshelo sa polokelo se koetsoe ka thata 'me u se boloke sebakeng se phodileng le se omileng.
| Tlhaloso |
| Lebitso la Sehlahiswa | Nigrosine Black Granular |
| CNo. | Acid Black 2 (50420) |
| Ponahalo | Black Khanyang Granular |
| Moriti | E ts'oanang le Standard |
| Matla | 100% |
| Mongobo (%) | ≤6 |
| Molora (%) | ≤1.7 |
| Ho potlaka |
| Leseli | 5~6 |
| Sesepa | 4 ~ 5 |
| Ho hohla | Omme | 5 |
| | Metsi | - |
