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What color is phenol red at an acid pH?
yellow
What is the color of chromic acid after oxidation?
It think it is orange yellow
What color does BTB turn when mixed with a acid or a base?
It forms carbonic acid and turns yellow
What would be the color of bromothymol blue in dilute nitric acid?
Yellow
Sodium metavanadate in sulfuric acid gives a yellow color what happens when you add zinc granules to it and What is the role of the sulfuric acid in the first place?
gives a green color
What is the hex triplet of the color Alizarin crimson?
E32636
What is citric acid color?
i think its yellow
What's in lemons?
Acidic acid and citrus acid is what is in lemons and the color yellow
What color is phenol red at an acid pH?
yellow
What color when acid is put on turmeric indicator?
it turns yellow
What is the color of chromic acid after oxidation?
It think it is orange yellow
What color does BTB turn when mixed with a acid or a base?
It forms carbonic acid and turns yellow
What would be the color of bromothymol blue in dilute nitric acid?
Yellow
What is OSHA respirator color code for hydrochloric acid?
red ,yellow
What are the secondary colors?
Secondary colors are formed when two primary colors are blended together . When you mix red and yellow together, they creates the color orange. Yellow and blue create green. Red and blue create violet.Black is not a secondary color. Alizarin Crimson and Prussian Blue will give you a deep black, but neither of those are primary colors.White is not a secondary color either, since it contains none of the primary color pigments, (red, Blue and Yellow).
What color is sulphuric acid?
It is usually colourless, but it can sometimes appear light yellow.
What are some common acid-base artificial indicators?
Alizarin is an orange dye present in the root of the madder plant; it was used to dye wool in ancient Egypt, Persia, and India. In an 0.5% alcohol solution, alizarin is yellow at pH 5.5 and red at pH 6.8. Several synthetic modifications of alizarin are also used as acid/base indicators.Cochineal is an acid-base indicator made from the bodies of dried female cochineal insects, found in Mexico and Central America. You'll have to grind about 70,000 insects to make one pound of dry indicator. The powder is about 10% carminic acid, which is yellow in acidic solution, and deep violet in alkaline solution. Cochineal solutions are not used much as acid/base indicators these days.Curcumin, or tumeric yellow, is a natural dye found in curry powder. It turns from yellow at pH 7.4 to red at pH 8.6.Esculin is a fluorescent dye that can be extracted from the leaves and bark of the horse chestnut tree. You'll need to shine a black (ultraviolet) light on the indicator to get the full effect. Esculin changes from colorless at pH 1.5 to fluorescent blue at pH 2.
