ARSENIC (III) SELENIDE
- CAS No.
- 1303-36-2
- Chemical Name:
- ARSENIC (III) SELENIDE
- Synonyms
- ARSENIC SELENIDE;arsenousselenide;ARSENIC TRISELENIDE;diarsenictriselenide;arsenicsesquiselenide;ARSENIC (III) SELENIDE;Arsenicselenideblackxtl;arsenicselenide(as2se3);ARSENIC SELENIDE, 99.999%;Arsenic(III) selenide lump
- CBNumber:
- CB1415319
- Molecular Formula:
- As2Se3
- Molecular Weight:
- 386.72
- MDL Number:
- MFCD00014166
- MOL File:
- 1303-36-2.mol
| Melting point | 360°C |
|---|---|
| Density | 4,75 g/cm3 |
| solubility | insoluble in H2O; soluble in alkaline solutions |
| form | crystal |
| Specific Gravity | 4.75 |
| color | black |
| Water Solubility | Soluble in nitric acid. Insoluble in water. |
| Merck | 14,805 |
| Exposure limits |
ACGIH: TWA 0.01 mg/m3; TWA 0.2 mg/m3 NIOSH: IDLH 5 mg/m3; IDLH 1 mg/m3; TWA 0.2 mg/m3; Ceiling 0.002 mg/m3 |
| CAS DataBase Reference | 1303-36-2(CAS DataBase Reference) |
| REACH Annex XVII Substances List | Diarsenic triselenide (1303-36-2) |
| EWG's Food Scores | 1 |
| FDA UNII | XWS0W0GB8G |
| EPA Substance Registry System | Arsenic selenide (As2Se3) (1303-36-2) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS06,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hazard statements | H330-H400-H410 | |||||||||
| Precautionary statements | P260-P284-P304+P340-P320-P405-P501a | |||||||||
| Hazard Codes | T,N | |||||||||
| Risk Statements | 23/25-50/53 | |||||||||
| Safety Statements | 20/21-28-45-61-60 | |||||||||
| RIDADR | 1557 | |||||||||
| RTECS | CG2285000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | II | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
ARSENIC (III) SELENIDE price More Price(17)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Strem Chemicals | 93-3305 | Arsenic(III) selenide (99.999%-As) PURATREM (99.999%-As) | 1303-36-2 | 5g | $112 | 2026-04-30 | Buy |
| Strem Chemicals | 93-3305 | Arsenic(III) selenide (99.999%-As) PURATREM (99.999%-As) | 1303-36-2 | 25g | $444 | 2026-04-30 | Buy |
| Apolloscientific | IN1159 | Arsenic(III) selenide powder,99.999%(metalsbasis) | 1303-36-2 | 1g | $21 | 2026-06-04 | Buy |
| Apolloscientific | IN1159 | Arsenic(III) selenide powder,99.999%(metalsbasis) | 1303-36-2 | 5g | $54 | 2026-06-04 | Buy |
| Apolloscientific | IN1159 | Arsenic(III) selenide powder,99.999%(metalsbasis) | 1303-36-2 | 25g | $260 | 2026-06-04 | Buy |
ARSENIC (III) SELENIDE Chemical Properties, Uses, Production
Chemical Properties
black crystal(s); dark brown solid; preparation: from melted As and Se; uses: vacuum deposition [CER91] [STR93] [MER06]
Uses
Arsenicselenide is used as a chalcogenide glass for infrared optics, as it transmits light with wavelengths between 870 nm and 17.2 μm.
Definition
Arsenic tri-selenide takes amorphous or glassy material. Strong absorption bands are observed when As2O3 is incorporated into the source materials or As2O3 is formed during fabrication by oxidetion. As2O3 takes the cubic system, the monoclinic system, and the glassy state. The strong absorption bands are observed at 1050, 805, and 480 cm-1 for the cubic crystal system, at 1100, 805 cm-1 for the monoclinic crystal system and at 805 and 630 cm-1 for the glassy material. The absorptions in the transmittance spectrum T2 agree with either of these absorption bands.
Production Methods
As and Se are encapsuled into a quartz tube in vacuum and the tube is put into a rocking furnace. The capsule is heated at the temperature slightly higher than the melting point and rocked to mix each component completely followed by slow cooling.
Safety Profile
Low toxicity by ingestion. Whenheated to decomposition it emits toxic vapors of As andSe.
ARSENIC (III) SELENIDE Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Alfa Chemistry | 1-516-6625404 | support@alfa-chemistry.com | United States | 9170 | 60 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Zhengzhou Acme Chemical Co., Ltd. | 0371-0371-55629727 13323845623 | 2885676761@qq.com | China | 9957 | 58 |
| 3A Chemicals | 400-668-9898 | service@3achem.com | China | 20535 | 58 |
| Guangdong wengjiang Chemical Reagent Co., Ltd. | 0751-2815688 13927872512 | 3007421951@qq.com | China | 9996 | 58 |
View Latest Price from ARSENIC (III) SELENIDE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-12-24 | ARSENIC (III) SELENIDE
1303-36-2
|
1KG | 99.0% | 10000KG | Shaanxi Dideu Medichem Co. Ltd | ||
 |
2025-04-04 | ARSENIC (III) SELENIDE
1303-36-2
|
1KG | 98% | 1ton | Henan Aochuang Chemical Co.,Ltd. | ||
 |
2019-07-06 | ARSENIC (III) SELENIDE
1303-36-2
|
$1.00 | 50 g | 99.9% | 20kg | Career Henan Chemical Co |
-
- ARSENIC (III) SELENIDE
1303-36-2
- 99.0%
- Shaanxi Dideu Medichem Co. Ltd
-
- ARSENIC (III) SELENIDE
1303-36-2
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- ARSENIC (III) SELENIDE
1303-36-2
- $1.00
- 99.9%
- Career Henan Chemical Co
