1 Yellow media without gas pocket-sugar utilization with production of acid only. 2  Red media (no change in media) -no change and no sugar utilization. 3  Pink media especially at the top, ignore gas-no sugar utilization with degradation of protein resulting in alkaline end products (this may be difficult to see).
With organic solvents with long alkane chain, such as n-hexadecane and n-decane, the water droplets become much larger and the microemulsion is unstable. In this case, solvent polarity may have become a determining factor and the long alkane chain was too hydrophobic to form a stable microemulsion with water.
Therefore, they are too different from each other and are not miscible... Old (not so good) Answer Hexane is not soluble in water because Hexane is a Nonpolar solvent while water is Polar solvent. Like dissolves like.Hexane also does not Conduct electricity.herefore, they are too different from each other and are not miscible... Old (not so good) Answer Hexane is not soluble in water because Hexane is a Nonpolar solvent while water is Polar solvent. Like dissolves like.