HOW TO DERTERMINE ALCOHOL IN HAND SANITIZERS

ALCOHOL DETECTION IN HAND SANITIZERS

AIM:
To determine the presence and concentration of alcohol in hand sanitizer.

APPARATUS:
Test tube, alcohol hydrometer or colorimeter.

REAGENT:
Potassium dichromate + sulfuric acid.

PRINCIPLE:
Alcohol reduces orange dichromate to green chromium ions.

PROCEDURE:

• Add 2ml sanitizer to test tube.

• Add dichromate reagent.

• Shake and observe color change from orange to green.

RESULT:
Color change confirms alcohol; intensity can indicate concentration.