So table salt would be gone in no time if I put it in water, but if I applied heat directly to it, it wouldn't melt until the temperature reached 800 and 1 degree Celsius.

所以如果我把食盐放在水里，它很快就会消失，但如果我直接加热它，它不会融化，直到温度达到 800 和 1 摄氏度。