Balloon Races – Ionization of Hydrochloric Acid and Acetic Acid
Coin-Operated Red, White, and Blue Fountain: Reaction of Nitric Acid and Copper
Conductivity and Extent of Dissociation of Acids and Bases
Fizzing Races: Ionization of HCl and Acetic Acid
Acid-Base Indicators Extracted from Plants
Acidic and Basic Properties of Oxides
Acidic and Basic Properties of Salts
Acidity of Aluminum Chloride in Solution
Amphoteric Properties of Aluminum Hydroxide
Classical Properties of Acids and Bases
Food is Acidic: Cleaners are Basic
Acid-Base Indicators From Plants
Description: Red cabbage juice is used as acid-base indicators for testing household materials as well as laboratory chemicals.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1989 Vol: 3 Page: 50
Keywords: Indicators, Natural, Red cabbage, Indicators, Overhead projectors
Rating: 
Hazard: Some
- Electrical shock hazard
- Toxicity hazard – oral
- Skin irritation
- Serious eye damage
- Use of sharps
Effectiveness: Average
- Results are observable with guidance
- Mild effects are seen by audience
- Moderate failure rate
- Time to result is high
Difficulty: Medium
- Some concerted or timed manipulations
- Some intermediate steps to results
- Some labor intensive steps to perform
- Simple procedures
Safety Precautions:
- Eye protection required
- Gloves required
- Cutting board recommended
- Absorbent materials on hand
- Use UL approved three-prong plug and outlet
- Handle sharps with care
Class: Acids and Bases, Natural Products, Indicators
Division: General
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