211176

Selenous acid

98%

• 동의어(들): Selenious acid
• Linear Formula: H₂SeO₃
• CAS Number: 7783-00-8
• Molecular Weight: 128.97
• EC Number: 231-974-7
• MDL number: MFCD00011331
• UNSPSC 코드: 12352301
• PubChem Substance ID: 24852658
• NACRES: NA.22

속성

• Quality Level: 200
• 분석: 98%
• 양식: solid
• mp: 70 °C ((lit.)); 70 °C (dec.) (lit.)
• solubility: water: 50 mg/mL
• density: 3.004 g/mL at 25 °C ((lit.)); 3.004 g/mL at 25 °C (lit.)
• SMILES string: O[Se](O)=O; O[Se](O)=O
• InChI: 1S/H2O3Se/c1-4(2)3/h(H2,1,2,3); 1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)
• InChI key: MCAHWIHFGHIESP-UHFFFAOYSA-N; MCAHWIHFGHIESP-UHFFFAOYSA-N

설명

애플리케이션

Selenous acid can be used as a reagent to synthesize:

• α-Ketoacectals by reacting with acetophenones and triethylorthoformate in the presence of boron trifluoride etherate as a catalyst.
• 4-Formyl-7-methylcoumarin using 4,7-dimethylcoumarin in the presence of xylene as a solvent.
• Selenium substituted quinoxaline derivatives from 2,3-dichloro quionoxaline.

안전성 정보

• 픽토그램: GHS06,GHS08,GHS09
• 신호어: Danger
• 유해 및 위험 성명서: H301 + H331,H373,H410
• 예방조치 성명서: P260 - P264 - P273 - P301 + P310 - P304 + P340 + P311 - P314
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
• Storage Class Code: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges