GOLD(III) BROMIDE
GOLD(III) BROMIDE Basic information
- Product Name:
- GOLD(III) BROMIDE
- Synonyms:
-
- goldbromide(aubr3)
- GOLD(III) BROMIDE
- GOLD BROMIDE
- GOLD TRIBROMIDE
- GOLD(III) BROMIDE, 99.9%
- Gold(III) bromide Hydrate
- Gold(III)bromide,anhydrous,99%(99.9+%-Au)
- gold(iii) bromide, premion
- CAS:
- 10294-28-7
- MF:
- AuBr3
- MW:
- 436.68
- EINECS:
- 233-654-2
- Product Categories:
-
- Au
- metal halide
- Gold Catalysis
- Gold Catalysts
- Catalysis and Inorganic Chemistry
- Chemical Synthesis
- Gold
- Gold Salts
- Materials Science
- Metal and Ceramic Science
- Salts
- Mol File:
- 10294-28-7.mol
GOLD(III) BROMIDE Chemical Properties
- Melting point:
- 160°C (dec.)
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- solubility
- H2O: slightly soluble(lit.)
- form
- Powder
- color
- orange to brown
- Water Solubility
- Slightly soluble in water.
- Sensitive
- moisture sensitive
- CAS DataBase Reference
- 10294-28-7(CAS DataBase Reference)
- EPA Substance Registry System
- Gold bromide (AuBr3) (10294-28-7)
Safety Information
- Hazard Codes
- C
- Risk Statements
- 34
- Safety Statements
- 26-36/37/39-45
- RIDADR
- UN 3260 8/PG 3
- WGK Germany
- 3
- F
- 8-10-23
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- III
MSDS
- Language:English Provider:SigmaAldrich
- Language:English Provider:ALFA
GOLD(III) BROMIDE Usage And Synthesis
Chemical Properties
Yellowish-gray mass. Decomposes at approximately 165C. Insoluble in water.
Uses
Gold(III) bromide is used as a catalyst in a variety of reactions. It catalyzes the reaction between an enynal unit and carbonyl compounds to form a six-membered cyclic compound. Another catalytic use of gold tribromide is in the nucleophilic substitution reaction of propargylic alcohols, with the gold complex acting as an alcohol-activating agent to facilitate the substitution. It can be used as a testing reagent for the presence of ketamine.
Uses
Analysis (testing for alkaloids, spermatic fluid), medicine.
Definition
Brownish-black powder. Mp 160C with decomposition. Soluble in water and alcohol.
Purification Methods
Purify it by adding pure Br2 to the dark powder, securely stopper the container, warm a little and shake while keeping away from light for ca 48hours. Remove the stopper and place it over NaOH until free Br2 is no longer in the apparatus (48-60hours). The bright yellow needles of the tribromide are stable over NaOH in the dark. It is soluble in H2O and in EtOH where it is slowly reduced. Keep it in a cooled, closed container and protect it from light as decomposition causes free gold to be formed. Aurobromic acid can be obtained by adding the calculated amount of conc HBr to AuBr3 (actually Au2Br6) until all dissolves, whereby the acid crystallises out as HAuBr4.5H2O; a deliquescent solid soluble in EtOH with m ca 27o, and store it as above. [Gibson & Colles J Chem Soc 2411 1931, Burawoy & Gibson J Chem Soc 217 1935, Burawoy & Gibson J Chem Soc 219 1935.]
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GOLD(III) BROMIDE(10294-28-7)Related Product Information
- SILVER BROMIDE
- Lithium bromide
- NICKEL(II) BROMIDE 2-METHOXYETHYL ETHER&
- Chloroauric acid
- Gold hydroxide
- Digold trioxide
- Rhodium tribromide
- TITANIUM(IV) BROMIDE
- LEAD(II) BROMIDE
- Cerium(III) bromide hydrate
- NICKEL BROMATE
- IRON (II) BROMIDE
- Lithium Bromide hydrate
- Magnesium bromide
- IRON (III) BROMIDE
- Sodium bromide
- Benzyl bromide
- Cyanogen bromide