KC7035 Copper Sulphate Pentahydrate Molecular Model

Cu(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic. Other names for copper(II) sulfate are "blue vitriol" and "bluestone". Copper (II) sulfate pentahydrate decomposes before melting at 150 °C (302 °F), losing two water molecules at 63 °C (145 °F), followed by two more at 109 °C (228 °F) and the final water molecule at 200 °C (392 °F).  Dehydration proceeds by decomposition of the tetraaquacopper(2+) moiety, two opposing aqua groups are lost to give a diaquacopper(2+) moiety. The second dehydration step occurs with the final two aqua groups are lost. Complete dehydration occurs when the only unbound water molecule is lost. At 650 °C (1,202 °F), copper (II) sulfate decomposes into copper (II) oxide (CuO) and sulfur trioxide (SO3). Copper sulfate reacts with concentrated hydrochloric acid to give tetrachlorocuprate(II): Cu2+ + 4 Cl− → CuCl2− 4 It also reacts with more reducing metals to give copper metal and the corresponding oxidized metal, e.g. CuSO4 + Zn → ZnSO4 +Cu This model is hand made in the USA by Klinger Educational Products. This is a permanent structure. We only use grade A materials. The 1 inch balls are made of hard Maplewood that includes an enameled painted finish. Polished steel rods are used to connect the wooden balls together. Copper Sulphate Pentahydrate contains 98  -  1 inch balls.