write the chemical composition of Hand sanitizer . How to make it at home. Write the key structure of the key substance (ingredient) define the concentration term used (ex: w/w% or w/v% or v/v% or mg/ml etc)
Answers
Answer:
What you'll need:
1 part aloe vera gel or glycerin.
2 part isopropyl alcohol (rubbing alcohol) with a concentration of 91%
Essential oil, such as lemon or lavender (this is an optional ingredient for scent)
Clean containers for mixing and an air-tight container for storage.
Spoon or whisk for mixing
Hand sanitizer is a liquid, gel, or foam-based chemical that is used to disinfect the surface of hands. It is also called a hand disinfectant, hand rub.
The chemical composition of hand sanitizer are as followed-
- The active ingredient in hand sanitizers may be isopropyl alcohol (isopropanol), ethanol, n-propanol, or povidone-iodine.
- The inactive ingredients in hand sanitizers are polyacrylic acid for alcohol gels, humectants such as glycerin for liquid rubs, propylene glycol, and essential oils of plants.
Composition of and sanitizer are -
- Ethanol: 80%
- Glycerol:1.45%
- Hydrogen peroxide: 0.125%
For 250 ml
- Ethanol (90%, V/V): 222.22 ml
- Glycerol (98%, V/V): 3.63 ml
- Hydrogen peroxide (6%, V/V): 5.21 ml
- Distilled water (D/W): up to 25O ml
Weight by weight concentration (w/w%) - When the amount of solute and solvent are expressed in weight, then the concentration is referred to as weight by weight.
Weight by volume concentration (w/v%) - When the amount of solute is in weight divided by the volume of solution and is multiplied by 100.
Volume by volume (v/v%) - It is used in the preparation of the liquid solution.
Milligram by milliliter - when the solute is in milligrams and solution is in milliliter, then the concentration is referred by mg/ml%.