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Digold trioxide

General description Preparation
Digold trioxide
Digold trioxide structure
CAS No.
1303-58-8
Chemical Name:
Digold trioxide
Synonyms
gold(3+);GOLD OXIDE;Auric oxide;Gold trioxide;Auric trioxide;Auric hydroxide;digold trioxide;GOLD(III) OXIDE;GOLD SESQUIOXIDE;goldoxide(au2o3)
CBNumber:
CB3160457
Molecular Formula:
Au2O3
Formula Weight:
441.93
MOL File:
1303-58-8.mol

Digold trioxide Properties

Melting point:
150°C
form 
Powder
color 
Brown
Water Solubility 
Insoluble in water. Soluble in HCl, HNO<sub>3</sub> and in NaCN solution.
Merck 
14,4524
CAS DataBase Reference
1303-58-8(CAS DataBase Reference)
FDA UNII
LW5Y686RUP
EPA Substance Registry System
Gold oxide (Au2O3) (1303-58-8)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Hazard statements  H315-H319
Precautionary statements  P264-P280a-P305+P351+P338-P321-P332+P313-P337+P313
Hazard Codes  Xi
Risk Statements  36/38
Safety Statements  26-36
RIDADR  UN 3263 8/PG 3
WGK Germany  3
TSCA  Yes

Digold trioxide price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 334057 Gold(III) oxide hydrate 1303-58-8 500 mg $142 2021-03-22 Buy
Alfa Aesar 012161 Gold(III) oxide, Premion?, 99.99% (metals basis), Au 88.6% min 1303-58-8 1g $240 2021-03-22 Buy
Alfa Aesar 012161 Gold(III) oxide, Premion?, 99.99% (metals basis), Au 88.6% min 1303-58-8 0.25g $68.6 2021-03-22 Buy
Strem Chemicals 93-7903 Gold(III) oxide, 99% 1303-58-8 5g $717 2021-03-22 Buy
Strem Chemicals 93-7903 Gold(III) oxide, 99% 1303-58-8 1g $179 2021-03-22 Buy

Digold trioxide Chemical Properties,Uses,Production

General description

Brown powder; decomposes slowly on exposure to sunlight or by heating at 150°C; begins to release oxygen at 110°C; fully decomposes to metallic gold at 250°C; insoluble in water; soluble in hydrochloric and concentrated nitric acids; also soluble in aqueous solutions of sodiumor potassium cyanide.

Preparation

Gold(III) oxide is prepared by heating gold(III) hydroxide, Au(OH)3 at 130 to 140°C:

Chemical Properties

Brownish-black powder, decomposed by heat.Keep in dark bottle. Soluble in hydrochloric acid; insoluble in water.

Uses

Gold plating

Purification Methods

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.]

Digold trioxide Preparation Products And Raw materials

Raw materials

Preparation Products


Digold trioxide Suppliers

Global( 119)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
HENAN BON INDUSTRIAL CO.,LTD
0371-55170695
info@hnbon.com CHINA 26742 58
Antai Fine Chemical Technology Co.,Limited
18503026267
info@antaichem.com CHINA 9664 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37441 58
Dayang Chem (Hangzhou) Co.,Ltd.
17705817739 +86-571-88938639
+86-571-88938652,+86-571- 88492614 info@dycnchem.com CHINA 52932 58
Zhuoer Chemical Co., Ltd
+86-13524231522
+86-21-58816016 sales@zhuoerchem.com CHINA 3014 58
CD Chemical Group Limited
+8613651442114
0086-13651442114 info@codchem.com China 20384 58

View Lastest Price from Digold trioxide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-14 Digold trioxide
1303-58-8
US $8.80 / KG 1KG 97%-99% 100kg career henan chemical co

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