<Li> 7778 - 18 - 9 </Li> <Li> 10034 - 76 - 1 (hemihydrate) </Li> <Li> 10101 - 41 - 4 (dihydrate) </Li> <Tr> <Td> 3D model (JSmol) </Td> <Td> <Ul> <Li> Interactive image </Li> </Ul> </Td> </Tr>

Why calcium sulphate is called plaster of paris