基本情報
- CAS
1303-36-2- 標準SMILES
[Se]=[As][Se][As]=[Se]- InChIKey
WBFMCDAQUDITAS-UHFFFAOYSA-N- 分子式
- As2Se3
- 平均分子量
- 386.8 g/mol
- 単同位体質量
- 389.59275
概要
Arsenic triselenide is a chemical compound of arsenic and selenium. Arsenic is a chemical element that has the symbol As and atomic number 33. It is a poisonous metalloid that has many allotropic forms: yellow (molecular non-metallic) and several black and grey forms (metalloids) are a few that are seen. Three metalloidal forms of arsenic with different crystal structures are found free in nature (the minerals arsenopyrite and the much rarer arsenolamprite and pararsenolamprite), but it is more commonly found as a compound with other elements. Selenium is a nonmetal element with the atomic number 34 and the chemical symbol Se. Selenium rarely occurs in its elemental state in nature and is usually found in sulfide ores such as pyrite, partially replacing the sulfur in the ore matrix. It may also be found in silver, copper, lead, and nickel minerals. Though selenium salts are toxic in large amounts, trace amounts of the element are necessary for cellular function in most animals, forming the active center of the enzymes glutathione peroxidase, thioredoxin reductase, and three known deiodinase enzymes. (L620, T3)
名称と識別子
- 優先名称
- Arsenic triselenide
- IUPAC
- Diarsaselenane-1,3-diselone
- 現地名
- 三セレン化二ひ素
- 英語名
- ARSENIC (III) SELENIDE
- 分子式
- As2Se3
- 分子量
- 386.72
名称と別名
Arsenic triselenideDiarsenic triselenideArsenic selenide (As2Se3)Arsenous selenideArsenic sesquiselenideAs2Se3arsenious selenideDiarsenic triselenide (AsSe3)UNII-XWS0W0GB8GXWS0W0GB8GEINECS 215-119-5ARSENIC TRISELENIDE [MI]
名称をさらに表示
三セレン化二ひ素2,4,5-トリセレナ-1,3-ジアルサビシクロ[1.1.1]ペンタンひ素(III)セレニドセレン化ヒ素()セレン化ヒ素セレン化ヒ素（III）セレン化砒素セレン化ひ素(III) (99.999%-As) PURATREMヒ素トリセレニドｾﾚﾝ化ﾋ素(As2Se3)ARSENIC SELENIDEarsenousselenidediarsenictriselenidearsenicsesquiselenideARSENIC (III) SELENIDEArsenicselenideblackxtlarsenicselenide(as2se3)ARSENIC SELENIDE, 99.999%Arsenic(III) selenide lump
DTXSID7061645((selanylidenearsanyl)selanyl)arsaneselone[(selanylidenearsanyl)selanyl]arsaneseloneArsenic(II) selenideDiselenoxodiarsaselenaneRefChem:114193DTXCID50339671303-36-2
物性
構造計算による物性
- 極性表面積
- 0 Ų
- 水素結合供与体数
- 0
- 水素結合受容体数
- 0
- 回転可能結合数
- 0
- 重原子数
- 5
- 形式電荷
- 0
- 複雑度
- 34.2
実験および物理化学的性質
SpringerMaterials Propertiesdielectric constant
物理化学的性質
- 融点
- 360 °C · 360°C
- 比重(密度)
- 4 · 4,75 g/cm3
- 溶解性
- 2 O; · insoluble in H2O; soluble in alkaline solutions
- 外見
- 結晶
- 比重
- 4.75 · 4.75
- 色
- 黒
- 水溶解度
- 硝酸に可溶。水に不溶。
- Merck
- 14 · 14,805
- CAS データベース
- 1303 · 1303-36-2(CAS DataBase Reference)
- EPAの化学物質情報
- Arsenic selenide (As2Se3) (1303-36-2)
化学的性質
化学的特性black crystal(s); dark brown solid; preparation: from melted As and Se; uses: vacuum deposition [CER91] [STR93] [MER06]
安全と法規制
安全情報は参考情報です。供給元の安全データシート（SDS）、適用法令、専門家による評価に代わるものではありません。
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 50% (6 of 12) of reports.
Danger
H301 (16.7%): Toxic if swallowed [Danger Acute toxicity, oral]
P260, P261, P264, P270, P271, P273, P284, P301+P316, P304+P340, P316, P319, P320, P321, P330, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 12 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
危険有害性情報
Regulatory Information
Chemical: Arsenic selenide (As2Se3)
REACH registered substance: Diarsenic triselenide (EC: 215-119-5)
Restricted substance: Diarsenic triselenide
Other Safety InformationIMAP assessments - Arsenic triselenide: Human health tier II assessment
Hazard Classes and Categories
Acute Tox. 3 (16.7%)
Carcinogenicity - category 1A
安全と保護具
Minimum Risk LevelAcute Oral: 0.005 mg/kg/day (Arsenic) (L134)
Chronic Oral: 0.0003 mg/kg/day (Arsenic) (L134)
Chronic Inhalation: 0.01 mg/m3 (Arsenic) (L134)
Chronic Oral: 0.005 mg/kg/day (Selenium) (L134)
毒性情報
Treatment
Arsenic poisoning can be treated by chelation therapy, using chelating agents such as dimercaprol, EDTA or DMSA. Charcoal tablets may also be used for less severe cases. In addition, maintaining a diet high in sulfur helps eliminate arsenic from the body. (L20)
化学と産業
薬理情報
Metabolism/Metabolites
Arsenic is absorbed mainly by inhalation or ingestion, as to a lesser extent, dermal exposure. It is then distributed throughout the body, where it is reduced into arsenite if necessary, then methylated into monomethylarsenic (MMA) and dimethylarsenic acid (DMA) by arsenite methyltransferase. Arsenic and its metabolites are primarily excreted in the urine. Arsenic is known to induce the metal-binding protein metallothionein, which decreases the toxic effects of arsenic and other metals by binding them and making them biologically inactive, as well as acting as an antioxidant. Selenium may be absorbed through inhalation and ingestion, while some selenium compounds may also be absorbed dermally. Once in the body, selenium is distributed mainly to the liver and kidney. Selenium is an essential micronutrient and is a component of glutathione peroxidase, iodothyronine 5'-deiodinases, and thioredoxin reductase. Organic selenium is first metabolized into inorganic selenium. Inorganic selenium is reduced stepwise to the intermediate hydrogen selenide, which is either incorporated into selenoproteins after being transformed to selenophosphate and selenocysteinyl tRNA or excreted into the urine after being transformed into methylated metabolites of selenide. Elemental selenium is also methylated before excretion. Selenium is primarily eliminated in the urine and feces, but certain selenium compounds may also be exhaled. (L619, L20)
用途と製造
General Manufacturing InformationArsenic selenide (As2Se3): ACTIVE
応用分野
使用Arsenicselenide is used as a chalcogenide glass for infrared optics, as it transmits light with wavelengths between 870 nm and 17.2 μm.
上流・下流製品情報
上流原料
サプライヤー42 社
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