deforms, if stretched to double of its original dimension.
is brittle at low temperature
is softer at higher temperature.
is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases.
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Phosphoric acid is produced in wet process from phosphate rock and
The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm mole, its fugacity at 300 K would be
Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium