Arsenic(III) selenide
硒化砷
Also known as: Arsenic selenide (As2Se3), Diarsenic triselenide, Arsenic triselenide, Diarsenic triselenide (As2Se3), Arsenic sesquiselenide, Arsenic(III) selenide lump, Arsenic(III) selenide 99.999%, Arsenic(III) selenide, 99.999% trace metals basis
Arsenic(III) selenide (CAS 1303-36-2) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula As2H4Se3 and a molecular weight of 390.75500 g/mol. It is also known as Arsenic selenide (As2Se3), Diarsenic triselenide and Arsenic triselenide. Key properties include a melting point of 0.36ºC and a density of 4.75. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1303-36-2
- Jingsj CID
- J-40056-5
- Molecular Formula
- As2H4Se3
- Chinese Name
- 硒化砷
- Molecular Weight
- 390.75500 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 0.36ºC |
|---|---|
| Density | 4.75 |
Frequently Asked Questions
What is the CAS number of Arsenic(III) selenide?
The CAS number of Arsenic(III) selenide is 1303-36-2.
What are the molecular formula and molecular weight of Arsenic(III) selenide?
Arsenic(III) selenide has molecular formula As2H4Se3 and molecular weight 390.75500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Arsenic(III) selenide (CAS 1303-36-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40056-5 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.