Fajan’s Titration
Description: This is the Fajan’s Titration of Cl– with AG + using dichlorofluorescein as the indicator. The pink end point is reached when the anionic indicator becomes absorbed in the cationic particles of the precipitate.
Source: Harris, Daniel C. Quanitative Chemical Analysis, 5th ed
Year: 1999 Vol: N/A Page: 166
Keywords: Fajan’s Titration, Cl–, Ag+, Precipitate
Rating: 
Hazard: Some
- Toxicity hazard
- Aquatic toxicity hazard
- Flammable liquids
Effectiveness: Good
- Results are clearly observable without guidance
- Somewhat connected conceptually to course material
- Contrast between systems is noticeable
- Time to results is low
Difficulty: Medium
- Some concerted or timed manipulations
- Requires attention to detail
- Volume-dependent addition required for proper results
Safety Precautions:
- Eye protection required
- Gloves required
- Absorbent material on hand
- Prevent release of reagents to the environment
- Avoid exposure to drops, mists or liquids
Class: Titrations
Division: Analytical Chemistry
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