Digoldtrioxid
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- CAS-Nr.
- 1303-58-8
- Bezeichnung:
- Digoldtrioxid
- Englisch Name:
- Digold trioxide
- Synonyma:
- gold(3+);GOLD OXIDE;Auric oxide;Gold trioxide;Auric trioxide;Auric hydroxide;digold trioxide;GOLD(III) OXIDE;GOLD SESQUIOXIDE;goldoxide(au2o3)
- CBNumber:
- CB3160457
- Summenformel:
- Au2O3
- Molgewicht:
- 441.93
- MOL-Datei:
- 1303-58-8.mol
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Digoldtrioxid Eigenschaften
- Schmelzpunkt:
- 150°C
- Löslichkeit
- insoluble in H2O; soluble in acid solutions
- Aggregatzustand
- Powder
- Farbe
- Brown
- Wasserlöslichkeit
- Insoluble in water. Soluble in HCl, HNO<sub>3</sub> and in NaCN solution.
- Merck
- 14,4524
- CAS Datenbank
- 1303-58-8(CAS DataBase Reference)
- EPA chemische Informationen
- Gold oxide (Au2O3) (1303-58-8)
Digoldtrioxid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/38:Reizt die Augen und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
Brownish-black powder, decomposed
by heat.Keep in dark bottle. Soluble in hydrochloric
acid; insoluble in water.
Verwenden
Gold plating
läuterung methode
The most probable impurities are SO4and Cl-ions. Dissolve it in strong boiling KOH solution (ca 5M) and precipitate (care) with excess of 3N H2SO4. Then shake and centrifuge, resuspend in H2O and repeat the washing several times until free from SO4 and Cl ions. This gives a wet oxide which is dried in air, but decomposes to free gold in sunlight. It is advisable to keep it wet as it decomposes on drying (analyse wet sample). Store it away from light in the presence of H2O vapour. It evolves O2 at 110o. It is insoluble in H2O but soluble in HCl and conc HNO3. [Roseveare & Buehrer J Am Chem Soc 49 1221 1927.]
Digoldtrioxid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Digoldtrioxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 164)Lieferanten
1303-58-8(Digoldtrioxid)Verwandte Suche:
- GOLD OXIDE
- GOLD SESQUIOXIDE
- Auric oxide
- Gold(III) oxide hydrate
- GoldoxideorangebrownpowderGoldgehalt
- Auric hydroxide
- Gold(III) oxide, 99.9%
- Gold trioxide
- Gold(III)oxide,99%
- gold(iii) oxide, premion
- Gold(III) Oxide, Au 89%,
- Gold(III) oxide, Premion(R), 99.99% (metals basis), Au 88.6% min
- Gold (III) Oxide, Au 89%
- Gold(III) oxide, Premion, 99.99% (metals basis), Au 88.6% min
- gold(3+)
- Gold(III) Oxide, Au 89%, 99.99%
- Digold trioxide (Au2O3)
- digold trioxide
- GOLD(III) OXIDE
- Gold(III) oxide, 99.99% trace metals basis
- Auric oxide hydrate
- Auric trioxide
- goldoxide(au2o3)
- Goldoxide,trihydrate
- Gold Oxide Nanoparticles / Nanopowder
- oxo(oxoauriooxy)gold:hydrate
- oxo-(oxoauriooxy)gold
- 1303-58-8
- 1303-58-0
- Au2O33H2O
- chemical reaction,pharm,electronic,materials
- metal oxide
- Gold
- Metal and Ceramic Science
- Oxides
- Industrial/Fine Chemicals
