Acidic and Basic Properties of Oxides
Description: Acid and base oxides when dissolved in water change the color of universal indicator. A pH meter can also be used.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1989 Vol: 3 Page: 109
Keywords: Oxides, Acidic, Basic, Indicators, Mixed, Overhead Projectors
Rating: 
Hazard: Medium
- Short term aquatic toxicity hazard
- Acute toxicity hazard
- Flammability hazard – production of flammable gas
- Specific organ toxicity-respiratory system
- Skin corrosion hazard
- Serious eye damage
- Corrosive to metals
- Electric shock hazard
Effectiveness: Average
- Results are observable with guidance
- Somewhat connected conceptually with course material
- Mild effects are seen by audience
- Good reliability
- Time to results is low
Difficulty: Medium
- Addition of reagents sequentially
- Handling of toxic chemicals
- Prior training recommended
- Experiments in which a display is used
- Simple manipulations for most to perform
- Multi-step procedures
Safety Precautions:
- Eye protection required
- Gloves required
- Perform in a well-ventilated area
- Downdraft hood recommended
- Chemical spill kit on hand
- Chemically resistant surface recommended
- ABC fire extinguisher on hand
- Use UL approved three-prong plug and outlet
- Prevent release of reagents to the environment
Class: Acids and Bases, Period Trends, Metals verses Non-Metals, Groups VIA and VIIA (16 and 17)
Division: General, Inorganic Chemistry
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