Brede Hangeland has joined Crystal Palace on a free transfer, signing a one-year deal at Selhurst Park.
Fiorentina have shored up their defence ahead of the new season with the signing of Jose Maria Basanta from Monterrey.
The 19-year-old will remain at Firhill until at least January 1, 2014.
Mukendi has been part of the Liverpool Academy set-up since 2007 and has progressed through the youth ranks at Anfield.
The teenager, who can play as a striker or wide on the left, will be hoping to aid Partick's bid for top flight survival as they prepare for a return to the Scottish Premier League this coming season.
The player's loan is subject to international clearance, but if granted in time he will be part of the squad for tomorrow's friendly with Arbroath at Gayfield.