Main Group Elements- Preparation and Properties of Oxygen

Preparation and Properties of Oxygen

Description: Oxygen is prepared by the catalytic action of manganese dioxide on hydrogen peroxide. Oxygen is shown to support combustion of other substances.

Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook of Teachers of Chemistry

Year: 1985   Vol: 2   Page: 137

Keywords: Oxygen, Hydrogen peroxide, Potassium permanganate, Manganese dioxide, Combustion, Oxidation, Decomposition

Rating:

Hazard: Medium

• Chemical burn hazard
• Skin corrosion hazard
• Serious eye damage
• Acute toxicity hazard
• Aquatic toxicity hazard
• Burn hazard
• Carcinogenicity hazard
• Inhalation hazard

Effectiveness: Average

• Results are observable with guidance
• Mild effects are seen by audience
• Systems contrast is noticeable
• Somewhat connected conceptually to material
• Time to results is medium

Difficulty: Medium

• Adding reagents in concert or sequence
• Use of reactive substances
• Use of toxic substances
• Procedures with some intermediate steps to results

Safety Precautions:

• Eye protection required
• Gloves required
• Perform in a well-ventilated area
• Absorbent materials on hand
• Avoid exposures to mists, vapors, or gases
• Prevent release of reagents to the environment

Class: Main Group Elements

Division: General

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