Chloroauric acid
Also known as: Hydrogen tetrachloroaurate(III), Auric acid, Tetrachloroauric acid, Gold(III) chloride, Gold(III) chloride trihydrate, Tetrachloroauric(III) acid hydrate, Gold trichloride acid brown
Chloroauric acid (CAS 16903-35-8) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula AuCl4H and a molecular weight of 339.786 g/mol. Key properties include a melting point of 30°C and a density of 3.9 g/mL at 25 °C. It is classified under GHS with signal word Danger and hazard statements H290, H314 — Causes severe skin burns and eye damage and H317 — May cause an allergic skin reaction. It is listed by 2 suppliers, 1 of which publish reference prices, from 220.00 to 280.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 16903-35-8
- Jingsj CID
- J-37172-0
- Molecular Formula
- AuCl4H
- Molecular Weight
- 339.786 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | Au 47.8% 5g | ¥1,100.00 | $32.92 /gBest ¥220.00/g CNY | CN China MOQ 5g | |
In Stock | Au 47.8% 1g | ¥280.00 | $41.9 /g ¥280.00/g CNY | CN China MOQ 1g | |
Made to Order | 99% 5g | - | - | CN China MOQ 5g |
Physicochemical Properties
| Melting Point | 30°C |
|---|---|
| Density | 3.9 g/mL at 25 °C |
| Exact Mass | 337.849731 |
| LogP | 2.86800 |
| Additional Property | H2O: soluble |
GHS Safety & Compliance
- H290
- H314 — Causes severe skin burns and eye damage
- H317 — May cause an allergic skin reaction
Frequently Asked Questions
What is the CAS number of Chloroauric acid?
The CAS number of Chloroauric acid is 16903-35-8.
What are the molecular formula and molecular weight of Chloroauric acid?
Chloroauric acid has molecular formula AuCl4H and molecular weight 339.786 g/mol.
Which suppliers offer Chloroauric acid?
2 supplier(s) listed; reference unit price ¥220.00–280.00 /g.
Is Chloroauric acid hazardous?
Chloroauric acid has GHS signal word Danger and hazard statements H290; H314 — Causes severe skin burns and eye damage; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Chloroauric acid?
For Chloroauric acid, Downstream Products: Gold.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Chloroauric acid (CAS 16903-35-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37172-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.