1. Solubility: N'ime mmiri,Black Nigrosinena-emepụta ihe ngwọta na-acha anụnụ anụnụ-acha odo odo, na-egosipụta ezigbo solubility, nke na-enye ya ohere ịmekọrịta na hydroxyl ma ọ bụ amino dị iche iche na ihe fiber, si otú ahụ na-enweta agba agba. Mgbakwunye nke ngwọta sodium hydroxide na-eme ka e nwee ntụ ntụ na-acha odo odo.Nigrosine Black bụ soluble na ethanol, na-egosipụta agba anụnụ anụnụ, na sulfuric acid gbadoro anya, ọ na-apụtakwa na-acha anụnụ anụnụ;na dilution, ọ na-agbanwe na-acha odo odo na a precipitate akpụ.Black Nigrosine fọrọ nke nta ka ọ ghara ịsacha ya na ether, acetone, benzene, chloroform, petroleum ether, na paraffin mmiri mmiri.

2. Nchekwa:Black Nigrosineekwesịrị ka ewepụ ya na kọntaktị oxidizing n'oge eji.Mgbe ị na-echekwa ihe, hụ na a na-emechi akpa nchekwa ahụ nke ọma ma chekwaa ya n'ebe dị jụụ na nkụ.

Black Nigrosine A na-eji ya eme ihe na akpụkpọ anụ, ọ na-apụtakarị dị ka ụcha organic gbara ọchịchịrị nke na-enye agba ojii miri emi ka ọ na-akpụ akpụ.r.Black Nigrosinea na-ejikwa ya esiji akwụkwọ, osisi, ncha na ajị anụ.Ọ nwere ngwa zuru ebe niile na ụlọ ọrụ dịka akwụkwọ na mbipụta.