Description
Specifications Table
Product Name – Hydrogen tetrachloroaurate hydrate, 99.999%, (trace metal basis)
Quantity/Pack Size – 1GR, 5GR
Form – Crystalline powder
Grade – 99.999% (trace metal basis)
Application – Gold nanoparticle synthesis, electroplating, catalysis
Product Overview
Hydrogen tetrachloroaurate hydrate (HAuCl₄·xH₂O) is a high-purity gold salt with a minimum assay of 99.999% on a trace metal basis, making it ideal for applications requiring exceptional purity and consistency. This crystalline powder dissolves readily in water and polar organic solvents, forming a yellow to orange solution due to the presence of gold(III) ions. Its stability under controlled conditions ensures reliable performance in synthesis protocols, particularly in the preparation of gold nanoparticles, where trace impurities can significantly impact particle size, shape, and surface properties. The compound is widely utilized in electroplating processes for depositing thin gold layers, offering excellent conductivity and corrosion resistance. Additionally, its role as a catalyst precursor in organic transformations—such as oxidation and coupling reactions—highlights its versatility in advanced chemical research. The hydrate form ensures ease of handling while maintaining the integrity of the gold content. Store in a tightly sealed container away from light and moisture to preserve its high purity and prevent decomposition.
FAQs
1. What is the solubility of hydrogen tetrachloroaurate hydrate in water?
It is highly soluble in water, forming a clear yellow to orange solution depending on concentration. Solubility increases with temperature.
2. Can this compound be used for gold nanoparticle synthesis without further purification?
Yes, the 99.999% purity (trace metal basis) ensures it is suitable for direct use in nanoparticle synthesis without additional purification steps.
3. What precautions should be taken during storage to maintain stability?
Store in a cool, dry place in a tightly sealed container, protected from light and moisture to prevent hydrolysis and decomposition.
4. Is this product compatible with common reducing agents like sodium borohydride?
Yes, it reacts efficiently with reducing agents such as sodium borohydride or citrate for gold nanoparticle formation under controlled conditions.
5. What alternatives exist for gold-based catalysis if this product is unavailable?
Alternatives include gold(III) chloride or potassium gold cyanide, though purity and reactivity may vary for specific applications.
