Metachromasy is the attribute of certain dyes changing in biological tissues changing color based on the tissues involved. Congo Red is a particular dye, in a category separate from Metachromasia dyes, though it does act as a PH indicator between pH 3.0 and 5.2.
orange and purple will make red that can replace the congo red dye..
when congo red was mixed with milk it produced pink color solution.
Universal Indicator Red was created in 1993.
If red rose indicator is used, acid will turn the indicator red, while alkaline solutions will turn the indicator green.
Congo Red is a sodium salt that has the chemical formula C32H22N6Na2O6S2. At one time, Congo Red was used as a dye for clothing but has since been abandoned due to its toxicity.
red country
Yes.
The universal indicator turns red in acidic solutions.
changes to violet in basic solution
I own one actually. The difference between Congo’s and Timneh’s are that Congo’s have a red tail and are slightly bigger. I own a Congo.
red and green