InterviewSolution
| 1. |
Q What is Plaster of Peris?bine the formula for it |
|
Answer» P.O.P. formula - CaSO4.1/2H2O soft mixture of sand and cement and sometimes lime with water, for spreading on walls, ceilings, or other structures, to form a smooth hard surface when dried. POP formula = CaSO4.1/2H2o Plaster of Paris is made up from gypsum. Plaster of Paris contains the calcium sulfate hemihydrates (CaSO4·0.5 H2O). This is prepared by heating the gypsum which contains calcium sulfate dihydrate (CaSO4·2H2O) to a temperature about 150oC (120-180oC). Certain additives are added when heating. Plaster of Paris is a fine, white powder. When it is hydrated it can be used to mould things, and when allowed to dry, it har P.O.P. is calcium sulphate hemi hydrate (CaSO4.½H2O)it is prepared by heating gypsum (CaSO4.2H2O) at 373K. Wardly of the base, a return bend at the outer end of said plate, a second plate extending ... plate spaced from and parallel with the Outer face of the wall to provide a saw guide slot,... plaster of peris ka formula CaSO4. 1/3H2O Formula of plaster of peris is :- CaSo4.1/2H2O caso4.1/2h2o is the right answer P. O. P formula = CaSO4. 1/2H2O CaSO4.1/2H2o is a substance used in fracture of bone |
|