Types of Chemical Reactions- Oxidation of Sodium

Oxidation of Sodium

Description: A small piece of sodium is placed in water containing phenolphtalein. A pink trail ensues as the sodium moves over the water surface.

This demonstration is also available on video and JCE Software “Chemistry Comes Alive!” CD-Rom.

Source:  Shakhashiri, B.Z. Chemical Demonstrations: A Sourcebook for Teachers; 2nd Edition

Source:    “Chemistry Comes Alive”

Year: 1999 Vol. 76 Page 1311

Keywords: Sodium, Phenolphthalein, Water, Hydroxide

Ratings:

Hazard:  Medium

• Flammability hazard
• Produces flammable gas during reaction
• Skin corrosion hazard
• Mild toxicity hazard
• Mutagenicity hazard
• Electric shock hazard
• Spill hazard

Effectiveness: Good

• Good connection from demo to course material
• Results are observable with guidance
• High reliability
• Time to results is low
• Moderate effects are seen by audience
• Primary and secondary effects are observed

Difficulty: Medium

• Sequential steps are required
• Procedures with some intermediate steps to results
• Some sequential manipulations
• Demos in which a display is used

Safety Precautions:

• Eye protection required
• Gloves required
• Avoid inhalation of vapors or droplets during presentation
• ABC fire extinguisher on hand
• Absorbent material on hand
• Tongs recommended
• Perform on a chemically resistant surface
• Handle liquids with care
• Use of UL approved three-prong plug and outlet if necessary
• Perform in a well-ventilated area

Class: Oxidation Reaction, Gas Producing Reaction

Division: General

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