selanylidenestannane
Tin Selenide
CAS: 1315-06-6
Molecular Formula: SeSn
selanylidenestannane - Names and Identifiers
| Name | Tin Selenide |
| Synonyms | SnSe SeSn TIN SELENIDE Tin Selenide selenoxostannane TIN (II) SELENIDE Tin selenide (SnSe) selanylidenestannane |
| CAS | 1315-06-6 |
| EINECS | 215-257-6 |
selanylidenestannane - Physico-chemical Properties
| Molecular Formula | SeSn |
| Molar Mass | 197.67 |
| Density | d0 6.18 |
| Melting Point | 861°C |
| Water Solubility | Insoluble in water. Soluble in aqua regia, alkali sulfides, and alkali selenides. |
| Appearance | 3 to 12mm Pieces |
| Color | Metallic |
| Exposure Limit | ACGIH: TWA 2 mg/m3; TWA 0.2 mg/m3NIOSH: IDLH 100 mg/m3; IDLH 1 mg/m3; TWA 2 mg/m3; TWA 0.2 mg/m3 |
| Merck | 14,8789 |
| Storage Condition | Sealed in dry,Room Temperature |
| MDL | MFCD00054049 |
| Physical and Chemical Properties | Physical and chemical properties tin selenide (tin selenide), chemical formula SnSe, is a gray orthorhombic crystal with semiconducting properties. Insoluble in water, but soluble in nitric acid and aqua, soluble in alkali and concentrated acid. This substance is highly toxic and harmful to organic matter in water. |
| Use | Use for semiconductor materials. |
selanylidenestannane - Risk and Safety
| Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R33 - Danger of cumulative effects R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | 3288 |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Class | 6.1(b) |
| Packing Group | III |
selanylidenestannane - Reference
| Reference Show more | 1. [IF=12.732] Feng Li et al."Facile Synthesis of Hierarchical SnSe Nanosheets-Hydrogel Evaporators for Sustainable Solar-powered Desalination."J Mater Chem A. 2022 Apr;: |
selanylidenestannane - Nature
| crystal structure | Cubic, Halite Structure - Space Group Fm3m |
| Bandgap | 0.91 -1.79 eV |
| Electronic properties | 2D semiconductor |
Last Update：2024-04-10 22:29:15
selanylidenestannane - Uses and synthesis methods
Preparation
Tin selenide can be obtained by direct combination of elemental substances:
Sn 2 Se → SnSe2
in the conventional preparation method, the heating temperature is higher than the melting point of the compound, reaching 900~950 ℃, in order to produce high purity tin selenide SnSe.
Production method
weigh stoichiometric high purity selenium and tin respectively, put them into a clean quartz ampoule, and seal them under high vacuum (about 10-5Pa). Place the ampoule in a cold furnace and slowly raise the temperature (about 50 ℃/h). When it reaches 490 ℃, stop raising the temperature and heat for 72h. Close the furnace and slowly cool the ampoule (nearly 10h) to room temperature to obtain high purity SnSe.
in the conventional preparation method, the heating temperature is higher than the melting point of the compound, reaching 900~950 ℃, in order to produce high purity SnSe.
SnSe can also be prepared by metathesis of SnS and ZnSe or CdSe at high temperature. Dark brown SnSe precipitate can also be precipitated when H2Se gas is introduced into the acidic aqueous solution of SnCl2.
Last Update：2024-04-10 22:29:15
selanylidenestannane - Reference Information
| Physical and chemical properties | Tin selenide, chemical formula SnSe, is a gray orthorhombic crystal with semiconductivity. Insoluble in water, but soluble in nitric acid and aqua, soluble in alkali and concentrated acid. This substance is highly toxic and harmful to organic matter in water. |
| use | is a semiconductor material. Tin selenide single crystals? Can be used to prepare monolayer and few-layer Sn, via mechanical or liquid exfoliation. |
| preparation | tin selenide can be obtained by direct combination of simple substance: Sn 2 Se → SnSe2 in the conventional preparation method, the heating temperature is higher than the melting point of the compound, reaching 900~950 ℃, to produce high purity tin selenide SnSe. |
| production method | weigh stoichiometric high purity selenium and tin respectively, put them into a clean quartz ampoule, and seal them under high vacuum (about 10-5Pa). Place the ampoule in a cold furnace and slowly raise the temperature (about 50 ℃/h). When it reaches 490 ℃, stop raising the temperature and heat for 72h. Close the furnace and slowly cool the ampoule (nearly 10h) to room temperature to obtain high purity SnSe. In the conventional preparation method, the heating temperature is higher than the melting point of the compound, reaching 900~950 ℃, in order to produce high purity SnSe. SnSe can also be made by the metathesis of SnS and ZnSe or CdSe at high temperature; dark brown SnSe precipitates can also be precipitated by passing H2Se gas into the acidic aqueous solution of SnCl2. |
| EPA chemical information | information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 21:04:16
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View History
selanylidenestannane
ALPHA,ALPHA-DIMETHYL-PARA-ETHYLPHENYLPROPANAL
5-Bromo-2-methylphenol
1185292-77-6
CYCLO (ARG-GLY-ASP-D-PHE-CYS)
ALPHA,ALPHA-DIMETHYL-PARA-ETHYLPHENYLPROPANAL
5-Bromo-2-methylphenol
1185292-77-6
CYCLO (ARG-GLY-ASP-D-PHE-CYS)