Introduction：Basic information about Gold hydroxide CAS 1303-52-2, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
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 |
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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. |
| InChI | InChI=1S/Au.3H2O/h;3*1H2/q+3;;;/p-3 |
| InChIKey | WDZVNNYQBQRJRX-UHFFFAOYSA-K |
| SMILES | [Au](O)(O)O |
| CAS DataBase Reference | 1303-52-2(CAS DataBase Reference) |
| EPA Substance Registry System | Gold hydroxide (Au(OH)3) (1303-52-2) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-37/39 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
Gold hydroxide Usage And Synthesis
| Chemical Properties | solid |
| Physical properties | Brown powder; decomposes at 100°C; insoluble in water; soluble in acid. |
| Uses | In gold-plating solutions; for decorating porcelains. |
| 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 |
| 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. |
Gold hydroxide Preparation Products And Raw materials
| Raw materials | Sodium carbonate-->Potassium Auric Chloride |
