You're asking about the melting point of "nitrate." However, "nitrate" is not a specific compound. It's an anion, meaning a negatively charged ion, with the formula NO₃⁻.

To find the melting point, you need to specify the compound containing the nitrate ion. For example:

* Sodium nitrate (NaNO₃): Melting point is 308°C (586°F)

* Potassium nitrate (KNO₃): Melting point is 334°C (633°F)

* Calcium nitrate (Ca(NO₃)₂): Melting point is 561°C (1042°F)

Please specify the specific nitrate compound you are interested in, and I can provide the melting point.