How do the phase diagrams for water and carbon dioxide differ?

Most substances have the part diagram that mimics that of carbon dioxide. However, if we have a tendency to examine the part diagram of water we'll realize a vital distinction.
 Not like carbon dioxide and most different substances, the part diagram of water shows a negative slope for the borderline between the liquid and solid state.

 This distinction must do thereupon proven fact that water truly expands because it goes from the liquid state to the solid state. this means that liquid water is additional dense than solid water. that's specifically why a cube of water can float in liquid water.
both have a solid, liquid, and gas part. it's simply that to urge carbonic acid gas within the liquid part takes a great deal of effort and is extremely reactive in terms of it quickly evaporates to the popular state of the gaseous carbonic acid gas.

The formula is (nh4)2co3