English Name: Gold

Other names: Jin; Golden sponge; Golden sponge

CAS No.: 7440-57-5

Au=196.97

 Grade : 4N

Specification: 0.2mm

Content: ≥ 99.99%

 Physicochemical Properties: Yellow shiny metal. It is soft and has great ductility. The chemical properties are extremely inactive, not subject to acid erosion, nor react with air or oxygen. At room temperature, its surface can be corroded by halogen solution. It can react with aqua regia, oxidation mixture (especially containing halogen) or mixture containing chloride, bromide and iodide that can generate new halogen, and it can also react with cyanide alkali. Soluble in aqueous solutions containing cyanide ions. Relative density 19.3. Melting point 1064.76 ℃. Boiling point 2700 ℃. The minimum lethal dose (rat, intravenous) is 58mg/kg.

Purpose: biochemical research. Manufacturing anode alloy and gold salt, etc

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