Manufacturer Supply High Quality CAS 16903-35-8 Chloroauric Acid

• CAS No.: 16903-35-8
• Formula: Aucl4h
• EINECS: 240-948-4
• Type: Synthesis Material Intermediates
• Appearance: White Powder
• Quality: Industrial
• Model NO.: TY-02AL
• Colour: White
• Package: Foil Bag
• Place: China
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	Chloroauric acid
CAS	16903-35-8
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

Chloroauric acid
Product Name Chloroauric acid

CAS 16903-35-8

MF AuCl4H

MW 339.79

EINECS 240-948-4

MOL File 16903-35-8.mol

Chemical Properties

Melting point 30°C
Boiling point 100 °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.
InChIKey FAGGMVVGLLFOQV-UHFFFAOYSA-J
CAS DataBase Reference 16903-35-8(CAS DataBase Reference)
EPA Substance Registry System Aurate(1-), tetrachloro-, hydrogen, (SP-4-1)- (16903-35-8)






Usage And Synthesis
Chloroauric acid

Chloroalic 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 chloroforrm. 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 hydrochloriic acid, and then it becomes lavender after gold salt solution. We get gold hydroxide precipitation after adding cold potassium hydroxidee solution. It was reduced to gold powder with sulfur dioxidee.

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