Micro-chemical test pH value: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 6: | Line 6: | ||
== Determination of pH == | == Determination of pH == | ||
For more information | For more information on the required equipment and materials see [[Micro-chemical testing]]. | ||
Revision as of 15:14, 9 June 2012
Author:Christine Bläuer
back to Micro-chemical testing
Determination of pH
For more information on the required equipment and materials see Micro-chemical testing.
Analytical procedure
The 1-14 pH indicator paper is dipped into the aqueous solution of the sample. The color of the pH indicator paper is compared to the color matching chart given on the wrapping.
or
The powdered sample is dispersed on a previously slightly wetted (with distilled or deionized water) pH indicator paper. The pH value in the vicinity of individual grains of the powder can be observed. This can be helpful when dealing with salt mixtures containing both alkaline earth metal sulfates and alkali carbonates.[1]