👉 The term "non-melting" is often used in science and engineering to describe a substance that does not melt at room temperature. This can occur due to factors such as its chemical structure, physical properties, or the presence of impurities. Non-melting substances are typically found in materials where they do not react with water or other liquids, or where their melting point is below 0°C (32°F). Examples of non-melting substances include ice, rock, and certain
