5. Examples of data use

5.1 Combustion of dissolved phosphorus in a melt

How much heat is released by oxidizing, with pure oxygen, 0.1% phosphorus dissolved in a liquid melt and neutralizing the P ₂ O ₅ formed to give the compound 3CaO.P ₂ O ₅ at 1,500°C?

Initial melt analysis: % C = 4.2; % Si = 0.7; % P = 0.12; % Mn = 0.7.

Initial temperatures $\{\begin{array}{l}delafonte:\text{ 1 300 }\text{°}C\text{ ;}\\ delachauxetdel’oxygène:\text{ 25 }\text{°}C\text{.}\end{array}$