Carbon Dioxide is a colorless gas with a lightly pungent odor and biting taste. It will not burn, support combustion, or sustain life. It is about 1.5 times heavier than air. Normally stored as a liquid, Carbon Dioxide exists only as a solid gas at room temperature. The solid CO₂snow transforms (sublimes) directly to a gas without passing through the liquid phase. Middlesex Gases supplies Liquid Carbon Dioxide to commercial customers in Massachusetts, New Hampshire, Rhode Island, Connecticut and throughout New England.