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H and E
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Why is alum used as mordant?
it is used as mordant due to the formation of gelatenous precipitates (Al(OH)3).
What might you do to make a natural dye more colorfast?
Colorfastness of a dye can be improved by using a substance called a mordant. A mordant is a chemical that bonds the colorant in a dye to a material. This happens because part of a mordant particle bonds to a particle in the material and another part of the mordant particle bonds to a dye molecule.
What is the mordant in a gram stain?
Gram's iodine stain is applied after the culture is stained with the primary stain. It acts as a mordant, fixing the primary stain to the cell wall while lending no additional colour to the cell (i.e. the mordant itself is not a stain). The mordant is only able to fix the stain to Gram-positive bacteria because of the characteristic thick, peptidoglycan coat that they possess. Because the mordant is not able to fix the stain to Gram-negative bacteria (who's coat have a different composition), the crystal violet stain will wash away from Gram-negative bacteria when the decolourizing agent is added.
What is the mordant reagent for?
to fix the color of the stain
What is mordant in z-n staining technique?
Phenol
Is vinegar a mordant?
Yes, sodium chloride can be used as a mordant.
What is a dye which fixes without a mordant?
a mordant is used for the dyeing to try it
Can you make a sentence using the word mordant?
It means a caustic or sharp quality.He has a mordant sense of humor.It can also mean a substance that fixes a dye into a fabric.What chemical did you use as a mordant?
How do you use mordant in a sentence?
Alum was used as a mordant in dyeing. Salt is used as a mordant in dyeing and calico-printing. Mordant is very sarcastic and painful wit or speech. It is also known as a substance that attaches dyes to materials.
Is mordant used in acid fast stain?
The heat is the mordant for an acid-fast stain
When was Edwin Mordant born?
Edwin Mordant was born on December 22, 1868, in Baltimore, Maryland, USA.
When did Edwin Mordant die?
Edwin Mordant died on February 15, 1942, in Hollywood, California, USA.
Why is alum used as mordant?
it is used as mordant due to the formation of gelatenous precipitates (Al(OH)3).
What mordant is used in spore staining?
Heat is the mordant used in the spore stain, it fixes the primary stain.
Is heat a mordant?
yes
What might you do to make a natural dye more colorfast?
Colorfastness of a dye can be improved by using a substance called a mordant. A mordant is a chemical that bonds the colorant in a dye to a material. This happens because part of a mordant particle bonds to a particle in the material and another part of the mordant particle bonds to a dye molecule.
What is the mordant in a gram stain?
Gram's iodine stain is applied after the culture is stained with the primary stain. It acts as a mordant, fixing the primary stain to the cell wall while lending no additional colour to the cell (i.e. the mordant itself is not a stain). The mordant is only able to fix the stain to Gram-positive bacteria because of the characteristic thick, peptidoglycan coat that they possess. Because the mordant is not able to fix the stain to Gram-negative bacteria (who's coat have a different composition), the crystal violet stain will wash away from Gram-negative bacteria when the decolourizing agent is added.
