16961-25-4

Basic information

• Product Name: HYDROGEN TETRACHLOROAURATE(III)
• Synonyms: Tetrachloroauric (Ⅲ) Acid Trihydrate;GOLD (III) CHLORIDE ACID 3H2O;Hydrogen tetrachloroaurate(III) trihydrate, 49.5% min., ACS, 99.99% trace metals basis;Gold(III) chloride trihydrateACS Reagent, ≥ 49% (Au basis);Gold(III) chloride trihydrate≥ 49.0% Au (Gravimetric assay);Tetrachloroauric(III) acid trihydrate 99.5% for analysis EMSURE;Hydrogen tetrachloroaurate trihydrate, For analysis ACS;TETRACHLOROGOLD(III) ACID TRIHYDRATE
• CAS NO: 16961-25-4
• Molecular Formula: AuCl4H7O3
• Molecular Weight: 393.83
• EINECS: 240-948-4
• Product Categories: Gold Salts;Materials Science;Metal and Ceramic Science;Salts
• Mol File: 16961-25-4.mol
• Article Data: 0

Chemical Properties

• Melting Point: 30°C
• Appearance: Yellow/Solid
• Density: 3.9 g/cm3 (20℃)
• Storage Temp.: Refrigerator (+4°C)
• Solubility: 150g/l
• Water Solubility: Soluble in water. Insoluble in ether.
• Sensitive: Light Sensitive & Hygroscopic
• Stability: Stable, but light sensitive. Very hygroscopic. Incompatible with reducing agents. Protect from moisture and light.
• CAS DataBase Reference: HYDROGEN TETRACHLOROAURATE(III)(CAS DataBase Reference)
• NIST Chemistry Reference: HYDROGEN TETRACHLOROAURATE(III)(16961-25-4)
• EPA Substance Registry System: HYDROGEN TETRACHLOROAURATE(III)(16961-25-4)

Safety Data

• Hazard Codes: C
• Statements: 34-43-22
• Safety Statements: 26-27-36/37/39-45
• RIDADR: UN 3260 8/PG 2
• WGK Germany: 3
• RTECS: MD5428000
• TSCA: Yes
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 16961-25-4(Hazardous Substances Data)

Usage

Chemical Properties

orange chunks or powder

Uses

Different sources of media describe the Uses of 16961-25-4 differently. You can refer to the following data:
1. Commonly used as a precursor for the preparation of gold (Au) nanoparticles1,2
2. Hydrogen tetrachloroaurate(III) trihydrate is used for the preparation of gold standard solutions; graphite-furnace AAS.
3. It is used for microanalysis of rubidium, cesium and in the determination of alkaloids. Usually used as a harbinger for the preparation of gold (Au) nanoparticles. It is used in the control rods of nuclear reactors and in the manufacturing of electric light filaments.

General Description

The embryotoxicity of gold salt (HAuCl4 · 3H2O) is weaker than the embryotoxicities of a number of other nanoparticles used infor biomedical applications.

InChI:InChI=1/Au.4ClH.3H2O/h;4*1H;3*1H2/q+3;;;;;;;/p-3/rAuCl4.3H2O/c2-1(3,4)5;;;/h;3*1H2/q-1;;;/p+1