Sorry, I can't answer this without knowing the indicator you are using but if you tell me I might be able to help.
If you are using a litmus paper pH scale, than pink means you have a basic substance, as opposed to it turning blue, meaning an acidic substance.
it most likely indicates the presence of a weak acid.
If something is a 0-6 on the pH scale it is an acid solution
a pH scale is something used for measuring the strengths of acids and bases.
pH scale
If something is alkalic, it is higher that 7 on the pH scale
scientists use the ph scale so they can tell whether something is acidic or alkaline
Because it has a PH of 7, if something has the PH of 7 it is nuteral
The pH scale ranges from 0 to 14 such that something with a pH of 0 is extremely acidic and something with a pH of 14 is extremely basic. A neutral pH is in the middle and has a pH of 7. An example of something with a pH of 7 is rain water.
The pH scale is the widely used universal scale, (which measures the hydrogen ion concentration of solutions) to measure the acidity or alkalinity of chemical solutions. It should be mentioned that the pH value is dependent on the temperature.
The pH scale measures how acid something is. It goes from 1 to 14, 1 being the most acidic and 14 the least acidic.
the pH scale
On the pH scale. The pH scale goes from 1 to 14, 1 being very acidic, 7 being neutral and 14 being very alkaline (basic). The pH scale is (loosely speaking) a measure of the concentration of free-floating hydrogen ions in a solution.
A neutral object or liquid on a PH scale means that it is neither acidic or alkaline. Water is usually in a state of neutral PH.