CAS： 13453-07-1
MF： AuCl3
Appearance： orange-red to dark red crystals
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| Photography |
Gold trichloride is previously used as a sensitizer in photographic films and as a toner for black-and-white photographs. |
| Nanoparticles | Gold trichloride serves as a precursor for gold nanoparticle synthesis, with applications in electronics, optics, and biomedicine. |
| Solar Cells | Gold trichloride acts as a dopant in creating graphene-protecting layers for perovskite cells and as an anode interfacial modifier for polymer cells. |
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Physical properties |
Red monoclinic crystals; deliquesces; density 4.7 g/cm3; sublimes at 180°C (760 torr); highly soluble in water; soluble in alcohol and ether; slightly soluble in liquid ammonia. |
| Preparation | Industrial Method: Reacts metallic gold with chlorine gas at elevated temperatures: 2 𝐴 𝑢 + 3 𝐶 𝑙 2 → 2 𝐴 𝑢 𝐶 𝑙 3 2Au+3Cl 2 →2AuCl 3 |
| Health Risks | Can cause skin irritation, blisters, and severe allergic reactions upon contact, inhalation, or ingestion. Experimental reproductive effects and human mutation data are reported. |
InChI:InChI=1/Au.3ClH/h;3*1H/q+3;;;/p-3/rAuCl3/c2-1(3)4
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The usefulness of a trivalent gold salt, gold trichloride (GTC), was evaluated as a marker of contact allergy to gold. Patients patch test-positive or patch test-negative to gold sodium thiosulfate (GSTS), 13 subjects of each, were patch tested with dilution series of GTC and equimolar concentrations of GSTS.
Oxidative doping of thin π-conjugated polymer films using acetonitrile solutions of gold trichloride yields electronically conductive polymers containing the AuCl4− counter ion. Thin oxidized films containing counter ions are orders of magnitude more stable in ambient atmosphere at 25 °C than polymers oxidized using AuCl4− conventional oxidants such as iron trichloride. Oxidation of polymer films using solutions of AuCl3 in nitromethane results in electroless deposition of zero-valent gold in addition to formation of AuCl4−-doped polymer. Thick films (> 1 μm) afford growth of a homogeneous and continuous metallic layer on top of the polymer film.
