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.
Properties. Epoxyethane is very reactive becacuse of its structure. The ring between the two carbons and oxygen is very strained and the bond angle is forced to be much smaller than is normal in carbon. This means that it is very reactive; and the carbon-oxygen bond is also broken in reactions.poxyethane is very reactive becacuse of its structure. The ring between the two carbons and oxygen is very strained and the bond angle is forced to be much smaller than is normal in carbon. This means that it is very reactive; and the carbon-oxygen bond is also broken in reactions.