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Chloroauric acid

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Company Name: Henan DaKen Chemical CO.,LTD.
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Products Intro: Product Name:Chloroauric acid
CAS:16903-35-8
Purity:99.00% Package:100g,500g,1KG,10KG,100KG
Company Name: Shanghai Bojing Chemical Co.,Ltd.
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Products Intro: Product Name:Chloroauric acid
CAS:16903-35-8
Purity:47% Package:1g Plastic bottle Remarks:Yellow crystalline
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Products Intro: Product Name:Chloroauric acid
CAS:16903-35-8
Purity:99% Package:500G;1KG;5KG;25KG
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Products Intro: Product Name:Chloroauric acid
CAS:16903-35-8
Company Name: Chengdu XiYa Chemical Technology Co., Ltd.  Gold
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Products Intro:Product Name:Chloroauric acid
CAS:16903-35-8
Purity:99% HPLC Package:25g,100g,500g
Chloroauric acid Basic information
Chloroauric acid Preparation Application
Product Name:Chloroauric acid
Synonyms:Hydrogen tetrachloroaurate(III) solution, Au 40-44 wt. %;auricacid;browngoldchloride;chlorauricacid;goldtetrachloride,acid;goldtrichloridehydrochloride;hydrogen,(sp-4-1)-aurate(1-tetrachloro-;hydrogentetrachloroaurate(1-)
CAS:16903-35-8
MF:AuCl4H
MW:339.79
EINECS:240-948-4
Product Categories:Industrial/Fine Chemicals;Inorganics;Hematology and Histology;Histology Special Stains;AAS;AAS CRMsSpectroscopy;AASSpectroscopy;Application CRMs;Matrix Selection;Nitrate;Spectroscopy;Gold Salts;Metal and Ceramic Science;Salts;Alphabetic;Analytical Standards;GApplication CRMs;ICP CRMsSpectroscopy;ICP-OES/-MS;ICPSpectroscopy;metal acid halide;chemical reaction,pharm,electronic,materials
Mol File:16903-35-8.mol
Chloroauric acid Structure
Chloroauric acid Chemical Properties
Melting point 30°C
density 3.9 g/mL at 25 °C
storage temp. 2-8°C
solubility H2O: soluble
form Liquid
color yellow
Water Solubility Miscible with water, alcohol, ester, ether and ketone.
Sensitive Light Sensitive
Merck 13,4537
Stability:Stable. Hygroscopic. Light sensitive. Incompatible with strong bases, sulfides, cyanides, carbonates.
CAS DataBase Reference16903-35-8(CAS DataBase Reference)
EPA Substance Registry SystemAurate(1-), tetrachloro-, hydrogen, (SP-4-1)-(16903-35-8)
Safety Information
Hazard Codes C,Xi
Risk Statements 36/37/38-43-34-36/38-23
Safety Statements 26-36/37/39-45-36/37
RIDADR UN 3260 8/PG 3
WGK Germany 3
RTECS CK6330000
3-8-10
TSCA Yes
HazardClass 8
PackingGroup III
MSDS Information
ProviderLanguage
SigmaAldrich English
Chloroauric acid Usage And Synthesis
Chloroauric acidChloroalic acid is also known as "gold chloride", "gold chloride tetrahydrate". Chemical formula is HAuCl4 • 4H2O. Molecular weight is 411.85. It is a yellow needle crystal. It is toxic and corrosive. It is easily soluble in water, and soluble in ethanol and ether, and slightly soluble in chloroform. Anhydrous chloroauric acid can be crystallized from the ethanol solution. It will decompose under heat condition, and decompose into gold trichloride at 120 ° C. Exposure of it leads to black spots. In alkaline solution, it reacts with KI to precipitate brown gold. In the acidic solution, it generates "cinnamon purple in the case of tin dichloride. Its aqueous solution was purple after dealing with methyl orange, and it turns green after 1 to 3 drops of hydrochloric acid, and then it becomes lavender after gold salt solution. We get gold hydroxide precipitation after adding cold potassium hydroxide solution. It was reduced to gold powder with sulfur dioxide.
PreparationDissolve the pure gold in aqua regia (or hydrochloric acid saturated by chlorine gas). After distillation and crystallization, we get the product.
ApplicationChlorine acid is mainly used for alkaloid determination, electroplating gold, photography, gold powder, porcelain coloring, red glass manufacturing, special ink and treatment of tuberculosis. It can also be used as analytical reagent, such as microanalysis of rubidium (Rb) and cesium (Cs). It is used for semiconductor, electronic connector and local gold-plated of integrated circuit lead frame, also for printing circuit boards.
Chemical Propertiesgolden to yellowish brown crystals or powder
Purification MethodsIt is obtained as a dark red crystalline mass by dissolving Au in aqua regia and evaporating. When sublimed at 180o, the crystals are ruby red. The anhydrous salt is hygroscopic, soluble in H2O but sparingly soluble in EtOH and Et2O. Aurochloric acid is formed when AuCl3 is dissolved in HCl. [Diemer J Am Chem Soc 35 553 1913, Glemser & Sauer Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p1 056 1965.]
Chloroauric acid Preparation Products And Raw materials
Tag:Chloroauric acid(16903-35-8) Related Product Information
GOLD CHLORIDE SOLUTION GOLD CHLORIDE ACID(AUCL3) Chloroauric Acid, Au 65%,CHLOROAURIC ACID YELLOW,CHLOROAURIC ACID BROWN,CHLOROAURIC ACID,GOLD CHLORIDE, BROWN,GOLD CHLORIDE,GOLD CHLORIDE (ACID YELLOW) GOLD CHLORIDE,TRIHYDRATE ACS GOLD CHLORIDE SOLUTION 0,21% AU Ammonium tetrachloroaurate Chloroauric acid CHLOROAURIC ACID YELLOW,GOLD CHLORIDE, BROWN,GOLD CHLORIDE (ACID YELLOW),CHLOROAURIC ACID BROWN,CHLOROAURIC ACID,GOLD CHLORIDE Clomiphene Citrate Chloroplatinic acid GOLD CHLORIDE SODIUM SALT, DIHYDRATE,SODIUM GOLD CHLORIDE,SODIUM CHLOROAURIC ACID DIHYDRATE Ascoric Acid Stearic acid POTASSIUM GOLD CHLORIDE TETRA-CHLOROAURIC ACID TRIHYDRATE,Chloroauric acid hydrated,CHLOROAURIC ACID TRIHYDRATE,CHLOROAURIC ACID, HYDRATE,Gold Chloride, Reagent,GOLD CHLORIDE, TRIHYDRATE,GOLD CHLORIDE, HYDRATE,CHLOROAURIC ACID,GOLD CHLORIDE TRIHYDRATE ACS REAGENT,Gold chloride tetrahydrate,GOLD CHLORIDE 1-(2,6-Dichlorophenyl)-2-indolinone Citric acid Folic acid