Other than water, Dry ice is made out of Co2 and it sublimes at −78.5 °C, which means it turns immediately from a solid to vapor.
This also makes him a far greater deal, since Dry ice is way cooler than normal ice.
It can cause severe frostbites and it stays solid for a longer period.
Though the question remains if the snow on Punk Hazard is made out of Dry ice also