Potassium tetrachloroaurate(III)
CAS 13682-61-6
KAuCl₄ is the free-flowing, non-deliquescent alternative to chloroauric acid — the easier-handling Au(III) salt for nanoparticle synthesis, plating formulations and gold catalysis where precise weighing matters.
Typical specification
| Molecular formula | KAuCl₄ |
|---|---|
| Molecular weight | 377.88 |
| Purity (metals basis) | ≥ 99.9% |
| Gold content | ≥ 50.9% |
| Appearance | Yellow crystalline powder |
| Water solubility | Soluble |
| HS code (export) | 2843300000 |
Lot-specific COA issued with every shipment. SDS and ICP elemental impurity data available on request.
Where KAuCl₄ is used
Precision nanoparticle work
Its stable, non-hygroscopic crystals weigh accurately for reproducible nanoparticle syntheses — an advantage over deliquescent HAuCl₄ in QC-controlled diagnostics manufacturing.
Plating and catalysis
A drop-in Au(III) source for plating bath make-up and for gold-catalyzed alkyne chemistry in aqueous or alcohol systems.
Storage and shipping
Storage. Store sealed, dry and dark.
Shipping. Ships by commercial courier with SDS; gold-compound export formalities confirmed per order.
Packaging. 1 g · 5 g · 25 g · 100 g
Synonyms
- Potassium gold chloride
- Potassium chloroaurate
- KAuCl4
Frequently asked questions
How is pricing structured?
Quotes reference the day's gold price on assayed contained metal plus a stated conversion charge, lockable at order confirmation.
What documentation is included?
Every lot ships with a certificate of analysis stating assayed metal content, plus an English SDS. ICP trace-metal panels are available on request.
Do you take back spent material?
Yes — residues and off-spec lots are assayed on receipt and the recovered metal credited against your next order.