Kinetics of Crystal Violet
Description: A crystal violet solution is poured into three different concentrations of NaOH. The rate of disappearance of the violet color is proportional to the concentration of NaOH solution.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Solution, Concentration, NaOH
Rating:
Hazard:
- Skin corrosion hazard
- Corrosive to metals
- Serious eye damage
- Electrical shock hazard
- Acute aquatic toxicity hazard
Effectiveness: Good
- Results are clearly observable without guidance
- Good connection from demo to course material
- Time to results is low
- Moderate reliability
- Mild effects are seen by audience
Difficulty: Medium
- Some concerted or timed manipulations
- Procedures with some intermediate steps to results
- Simple manipulations for most to perform
- Demos in which a display or read out is used
- Use of scientific instruments
Safety Precautions:
- Eye protection gloves required
- Absorbent materials on hand
- Sodium bicarbonate on hand
- Perform in a well ventilated area
- Use UL approved three-prong plug and outlet
- Prevent release of reagents to the environment
Class: Kinetics
Division: General, Physical Chemistry
Home| General Chemistry Demos| Physical Chemistry Demos