definitively a 3rd degree burn.
580 degrees Celsius is 1,076 degrees Fahrenheit.
"nitrate" is not a compound. There are many nitrates with various melting points. To give you a point of reference, the melting point of sodium nitrate is a bit over 300 degrees Celsius or about 580 degrees Fahrenheit.
It is a whole turn and then 220 degrees.
About 580 - 600 calories
580 + 580 = 1160
35% of 580= 35% * 580= 0.35 * 580= 203
12% of 580 = 12% * 580 = 0.12 * 580 = 69.6
30% of 580= 30% * 580= 0.3 * 580= 174
580
4.7% of 580= 4.7% * 580= 0.047 * 580= 27.26
2% of 580 = 2% * 580 = 0.02 * 580 = 11.6
40% of 580 = 40% * 580 = 0.4 * 580 = 232