Methylene blue is a cationic dye and is generally considered to exhibit basic properties due to its positively charged nitrogen atoms in the structure. It can interact with negatively charged entities, but it does not act as a traditional base in terms of proton acceptance. In solution, it can affect pH but is primarily used for its staining properties rather than as an acid or base.
If methylene blue is blue, it means that the compound is in its oxidized state (methylene blue) and has accepted electrons. Methylene blue can exist in both oxidized (blue) and reduced (colorless) forms depending on its redox state.
Blue litmus turns red in the presence of an acid and remains blue in the presence of a base.
E.Coll is definitely acid fast negative,due to its ability to dye with methylene blue.
i think the methylene blue will be make aqua blue because the charcoal will penerate the color of methylene blue,,,there are absorption process,,,in the charoal between the methylene blue.... (kharlz)
The counter or secondary stain used in the acid-fast stain technique is methylene blue.
there are many types of acid base indicators - see chart at http://chemistry.about.com/library/weekly/aa112201a.htm Common indicators: Methyl orange - acid=red, base=orange Bromcresol green - acid=yellow, base=blue Bromphenol blue - acid=yellow, base=blue Phenolphthalein - acid=colorless, base=red it is also easy to use litmus paper - acid=red, base=blue
Bile salts in Eosin Methylene Blue agar inhibit the growth of Gram-positive bacteria, allowing for the selective growth of Gram-negative bacteria. This helps in the detection and differentiation of organisms based on their ability to ferment lactose and produce acid.
Methylene blue stains everything blue.
because methylene blue turns colourless when it is reduced by hydrogen. during respiration hydrogen is produced and instead of reducing NAD, it reduces methylene blue and turns methylene blue colourless. if methylene blue goes from blue to colourless then this shows that the cell is respiring as it is producing a suffiecient amount of hydrogen to decolourise methylene blue
it has (red acid) and a (blue base)
E. Coli is definitely acid fast negative, due to it's ability to dye with methylene blue. It has no outer waxy exterior..
A base turn the color of the paper in blue.