Thermochemistry- Reaction of Aluminum and Mercury (II) Chloride

Reaction of Aluminum and Mercury (II) Chloride

Description: A portion of liquid Mercury (II) Chloride is painted onto a sheet of Aluminum foil. The reaction causes the aluminum to oxidize, and heat is generated. 

2Al(s) + 3HgCl2(aq) → 2AlCl3(aq) + 3Hg(s) 

2Hg(s) + O2(s) → 2HgO(s) 

Source: UW Card Catalog

Year:   N/A  Vol: N/A  Page: N/A

Keywords: Spontaneous, Oxidation, Mercury, Amalgam, Exothermic 

Rating:

Hazard: Some

  • Acute toxicity – oral
  • Skin corrosion hazard
  • Serious eye damage
  • Germ cell mutagenicity
  • Reproductive toxicity
  • Specific target organ toxicity- CNS
  • Short-term (aquatic) hazard
  • Long-term (chronic) hazard
  • Flammable solids
  • Substances and mixtures which in contact with water emit flammable gases
  • Electric shock hazard

Effectiveness: Average

  • Hard to see or perceive results
  • Time to results is medium
  • Good connection from demo to course material
  • Contrast of systems behavior is low
  • Good reliability
  • Secondary effects

Difficulty: Low

  • Simple procedures
  • Simple manipulations for most to perform
  • Demos do not involve deep attention

Safety Precautions:

  • Eye protection required
  • Gloves required
  • Thermal gloves recommended
  • Use UL approved three-prong plug and outlet

 

Class: Transition Metals, Groups IA, IIA, IIIb (1, 2, and 13)  Redox Reactions, Thermochemistry

Division: Inorganic Chemistry, General Chemistry

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