Copper(II) selenite dihydrate
亚硒酸铜(II)二水合物
Also known as: Cupric selenite dihydrate, Copper selenite dihydrate, Copper(2+) selenite dihydrate, Selenious acid, copper(2+) salt (1:1), dihydrate
Copper(II) selenite dihydrate (CAS 15168-20-4) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula CuH4O5Se and a molecular weight of 226.53500 g/mol. It is also known as Cupric selenite dihydrate, Copper selenite dihydrate and Copper(2+) selenite dihydrate. Key properties include a melting point of 158-160 °C and a density of 3.31. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H331 — Toxic if inhaled and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 15168-20-4
- Jingsj CID
- J-1361643-4
- Molecular Formula
- CuH4O5Se
- Chinese Name
- 亚硒酸铜(II)二水合物
- Molecular Weight
- 226.53500 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 158-160 °C |
|---|---|
| Density | 3.31 |
| Exact Mass | 226.85200 |
| PSA | 81.65000 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
- H373 — May cause damage to organs through prolonged exposure
- H410 — Very toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of Copper(II) selenite dihydrate?
The CAS number of Copper(II) selenite dihydrate is 15168-20-4.
What are the molecular formula and molecular weight of Copper(II) selenite dihydrate?
Copper(II) selenite dihydrate has molecular formula CuH4O5Se and molecular weight 226.53500 g/mol.
Is Copper(II) selenite dihydrate hazardous?
Copper(II) selenite dihydrate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H331 — Toxic if inhaled; H373 — May cause damage to organs through prolonged exposure.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Copper(II) selenite dihydrate (CAS 15168-20-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361643-4 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.