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need a barium sulphate crystallite structure please help. regards

need a barium sulphate crystallite structure please help. regards

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1 Answers

Aarti Gupta
askIITians Faculty 300 Points
9 years ago
Barium sulphate has the molecular formula of BaSO4.It is a soft crystalline solid which is odorless and insoluble in water.It occurs as the mineral barite which is the main commercial source of barium.Its density is 4.50gm/cm3 and refractive index is 1.64.It melts around 1580 degC but decomposes above 1600 degC.The crystalline sturcture of BaSO4 is known to be rhombic with a space group pnma.The lattice parameters are : a = 8.896Å ,b = 5.462Å,c = 7.171Å,V = 348.4Å.Its three-dimensional sturcture is as follows--
213-28_Baso4.jpg

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