The slave ship Comerciante departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Comerciante; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Captain: Silva, José Pinto Ribeiro da; Investor: Silva, José Pinto Ribeiro da; Captain: Pacheco, José Jacinto. The voyage began at Rio de Janeiro on 20 August 1828. Principal recorded place where captives were acquired: Luanda (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 27 days. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.