Gold hydroxide
Gold hydroxide Basic information
- Product Name:
- Gold hydroxide
- Synonyms:
-
- Gold trihydroxide
- GOLD(III) HYDROXIDE
- GOLD HYDROXIDE
- gold trihydrate
- gold(3+):trihydroxide
- goldhydroxide(au(oh)3)
- Gold(III) hydroxide, 99.9%
- GOLD (III) HYDROXIDE, 99.9% (CL < 100PPM)
- CAS:
- 1303-52-2
- MF:
- AuH3O3
- MW:
- 247.99
- EINECS:
- 215-120-0
- Product Categories:
-
- Gold Salts
- Metal and Ceramic Science
- Salts
- Mol File:
- 1303-52-2.mol
Gold hydroxide Chemical Properties
- Melting point:
- decomposes at ~100℃ [LID94]
- solubility
- insoluble in H2O; soluble in acid solutions
- form
- Powder
- color
- brown
- Water Solubility
- Insoluble in water.
- Sensitive
- Light Sensitive
- Merck
- 14,4523
- Solubility Product Constant (Ksp)
- pKsp: 45.26
- Stability:
- Stability May decompose upon exposure to light. Incompatible with strong oxidizing agents.
- CAS DataBase Reference
- 1303-52-2(CAS DataBase Reference)
- EPA Substance Registry System
- Gold hydroxide (Au(OH)3) (1303-52-2)
MSDS
- Language:English Provider:SigmaAldrich
- Language:English Provider:ALFA
Gold hydroxide Usage And Synthesis
Chemical Properties
solid
Physical properties
Brown powder; decomposes at 100°C; insoluble in water; soluble in acid.
Uses
Synthesis of gold hydroxide complexes with N-heterocyclic carbene has been reported. A variety of perfluoroaryls, N-heterocyclic and alkynyl compounds may be synthesized by reacting gold(III) hydroxide with C–H and N–H compounds and arylboronic acids. Potassium aurate may be prepared by heating auric hydroxide with conc. KOH. 3
Uses
In gold-plating solutions; for decorating porcelains.
Production Methods
Gold(III) hydroxide is precipitated by mixing aqueous solutions of potassium auric chloride and sodium carbonate:2KAuCl4 + 3Na2CO3 + 3H2O → 2Au(OH)3 + 6NaCl + 2KCl + 3CO2
The product usually contains about three molecules of water of crystallization. It may alternatively be prepared by adding caustic soda solution to sodium auric cyanide: NaAu(CN)4 + 3NaOH → Au(OH)3 + 4NaCN.
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Gold hydroxide(1303-52-2)Related Product Information
- Ammonium hydroxide
- Calcium hydroxide
- Barium hydroxide
- CATALASE
- Cobalt hydroxide
- Lithium hydroxide monohydrate
- Sodium hydroxide
- Digold trioxide
- Aluminum hydroxide
- Magnesium hydroxide
- Cobalt(II) hydroxide
- INDIUM HYDROXIDE
- Zirconium hydroxide
- LANTHANUM HYDROXIDE
- Iron hydroxide
- Cesium hydroxide
- STRONTIUM HYDROXIDE OCTAHYDRATE
- Cupric hydroxide