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.
The formula which only shows the number of carbon and hydrogen atoms present in the molecule without representing the bond present in the molecule is called Condensed structurâ¦al formula. It only gives a relation between atoms but does not show carbon carbon bond in organic compounds.    The molecular formula for hexane is CH3(CH2)4CH3. The condensed structural formula for hexane is C6H12.