Blue
A base turns the universal indicator blue or u can say a alkali substance.
When Lithium reacts in water, and universal indicator is present, the solution will turn a deep blue/mauve colour, due to the fact that an alkali is formed.
This is because the toothpaste has some amount of acid or alkaline in it .
The Universal Indicator would go green which is pH 7.
The alkali makes a universal indicator turn blue.
Blue
A shade of blue, green, or purple.
blue
When universal indicator is put in water soluion of alkalis (base) it indicates significant blue colour.
Universal Indicator Blue was created in 1992.
blue
It turns the universal indicator purple or blue.
Purple. Sodium Hydroxide is an Alkali/base. Bases and Alkalis have a pH greater than 7, and turn blue-purple in universal indicator.
A base turns the universal indicator blue or u can say a alkali substance.
It will turn blue/purple as lime water has a pH of 12.4
The gas that turns a universal indicator blue is usually chlorine.