Monophosphates and condensed phosphates associated to barium, the subject of this paper, constitute an important part of phosphate chemistry and have been subject to many studies and applications in many fields of research on materials and industry. In order to collect unit-cell parameters of these compounds, establish a data bank of formula existing till now and to have an idea about facilities and difficulties on their preparations, we focus the present research on chemical preparations, crystal data and IR studies for condensed phosphates and monophosphates. The present work reports the chemical preparations, main crystallographic data for condensed phosphates and monophosphates associated to barium and characterization by infrared vibration spectrometry for anions, PO3- in Ba(PO3)2, PO43- in Ba3(PO4)2, P2O74- in BaMnP2O7, P3O93- in Ba3(P3O9)2.6H2O, P4O124- in Ba2P4O12.4H2O, P6O186- in Ba3P6O18.8H2O and P10O3010- in Ba2ZnP10O30.