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Zinnselenid
SnSe · Tin selenide (SnSe) · SeSn · TIN SELENIDE · selenoxostannane · Stannum Selenide · Tin selenide lump · stannous selenide
Identifikatoren & physikalische Daten
| CAS No. | 1315-06-6 |
|---|---|
| Summenformel | SeSn |
| Durchschnittliche Molmasse | 197,68 g/mol |
| Monoisotopische Masse | 199,81872 g/mol |
| SMILES | [Se]=[Sn] |
| InChIKey | MFIWAIVSOUGHLI-UHFFFAOYSA-N |
| PubChem CID | 6432049 |
| Lokaler Name | Zinnselenid |
Chemische & physikalische Eigenschaften
| Polarare Oberfläche (TPSA) | 0 |
|---|---|
| H-Brücken-Donoren | 0 |
| H-Brücken-Akzeptoren | 0 |
| Frei drehbare Bindungen | 0 |
| Schwere Atome | 2 |
| Formalladung | 0 |
| Komplexität | 2 |
| Schmelzpunkt | 861°C |
| Dichte | d0 6.18 |
| Lagerbedingungen | Sealed in dry,Room Temperature |
| Löslichkeit | insoluble in H2Osoluble in aqua regiaInsoluble in water. Soluble in aqua regia, alkali sulfides, and alkali selenides. |
| Aggregatzustand | 3 to 12mm Pieces |
| Merck | 14,8789 |
| EPA chemische Informationen | Tin selenide (SnSe) (1315-06-6) |
| Farbe | Metallic |
Sicherheit & Vorschriften
| Minimum Risk Level | Chronic Oral: 0.005 mg/kg/day (Selenium) (L134) |
|---|---|
| Treatment | EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration. |
| Gesundheitliche Auswirkungen | Ingestion of large amounts of inorganic tin compounds can cause stomachache, anemia, and liver and kidney problems. Chronic oral exposure to high concentrations of selenium compounds can produce a disease called selenosis. The major signs of selenosis are hair loss, nail brittleness, and neurological abnormalities (such as numbness and other odd sensations in the extremities). Animal studies have shown that selenium may also affect sperm production and the female reproductive cycle. (L619, L307, L308) |
| Expositionspfade | Oral (L308)inhalation (L308)dermal (L308) |
| Toxizitätsübersicht | Selenium readily substitutes for sulfur in biomolecules and in many biochemical reactions, especially when the concentration of selenium is high and the concentration of sulfur is low. Inactivation of the sulfhydryl enzymes necessary for oxidative reactions in cellular respiration, through effects on mitochondrial and microsomal electron transport, might contribute to acute selenium toxicity. Selenomethionine (a common organic selenium compound) also appears to randomly substitute for methionine in protein synthesis. This substitution may affect the structure and functionability of the protein, for example, by altering disulfide bridges. Inorganic forms of selenium appear to react with tissue thiols by redox catalysis, resulting in formation of reactive oxygen species and causing damage by oxidative stress. Inorganic and organic tin compounds are weak inhibitors of alcohol dehydrogenase. (A183, L619) |
| Signs and Symptoms | Inorganic or organic tin compounds placed on the skin or in the eyes can produce skin and eye irritation. Short-term oral exposure to high concentrations of selenium may cause nausea, vomiting, and diarrhea. Brief exposures to high levels of elemental selenium or selenium dioxide in air can result in respiratory tract irritation, bronchitis, difficulty breathing, and stomach pains. Longer-term exposure to either of these air-borne forms can cause respiratory irritation, bronchial spasms, and coughing. (L619, L308) |
Anwendungen & Verwendung
Beschreibung
Tin selenide (SnSe) is a narrow band gap semiconductor comprised of environmentally friendly and earth abundant elements.
Verwenden
Tin selenide finds application in low- cost photovoltaics devices and memory-switching devices. It acts as a solid-state lubricant. It is also used for solar cells and anodes for lithium-ion batteries. Further, it is a narrow band-gap semiconductor.
Herstellung & Synthese
synthetische
Synthetic- chemical vapour transport (CVT)