Question

what happen when phosphate is heated​

Answer 1

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White phosphorous burns at temperatures near 5,000 degrees Fahrenheit (2760 C). It is used to start fires and can cause severe burns where it strikes humans.

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Answer 2

Explanation:

Phosphorus exist in many allotropic forms. The three main forms are:

1) White Phosphorus

2) Red Phosphorus

3) Black Phosphorus

White Phosphorus is obtained from phosphorite rock with coke and sand. It consist of P4 units.The four P- atoms lie at the corners of a regular tetrahedron. It is less stable and therefore more reactive than other allotropic forms of Phosphorus. On heating with concentrated NaOH in an inert environment of CO2 following reaction takes place:

P4+3NaOH+3H2O→pH3+3NAH2 PO2

phosphine ,sodium

hypophosphate

Phosphine (PH3) is formed.This reaction is an example of disproportionation reaction in which oxidation state of phosphorus decreases from 0 in P4 to -3 in PH3,while it increases from 0 in P4 to +1 in NaH2PO2.