이산화셀레늄

무수아세틸렌산 · 셀렌산화물 · 셀렌산화물디머 · 셀렌(IV)디산화물(1:2)(SELENIUM · 아셀렌무수물 · 아셀렌산무수물 · 이산화셀레늄 · 이산화셀렌

https://huagongshe.com/ko/chemical/24007

식별자 및 물리적 특성

CAS No.	12640-89-0
분자식	O2Se
평균 분자량	110.97 g/mol
SMILES	O=[Se]=O
InChIKey	JPJALAQPGMAKDF-UHFFFAOYSA-N
PubChem CID	24007
ChEMBL	CHEMBL3183452
EC No.	231-194-7
현지명	이산화셀레늄

화학 및 물리적 성질

극성 표면적	34.1
수소 결합 공여자 수	0
수소 결합 수용자 수	2
회전 가능 결합 수	0
무거운 원자 수	3
형식 전하	0
복잡도	18.3
물질 분류	Other Classes -> Other Inorganic Compounds
냄새	Vapor has a pungent sour smellRotten radishes.
맛	Acidic tasteleaves a burning sensation.
밀도	3.95 at 68 °F (USCG, 1999) - Denser than waterwill sink3.954 at 15 °C/15 °CDensity (at 15 °C): 3.95 g/cm³3.95 @25 °C4.81 g/mL at 25 °C(lit.)
Color/Form	Lustrous tetragonal needlesyellowish green vaporWhite or yellowish-white to slightly reddish, lustrous, crystalline powder or needles.
용해도	Soluble in concentrated sulfuric acidSolubility (parts/100 parts solvent): 10.16 in methanol at 11.8 °C6.67 in 93% ethanol at 14 °C4.35 in acetone at 15.3 °C1.11 in acetic acid at 13.9 °CIn water, 400 g/L at 20 °C264 g/100 g water at 22 °CFor more Solubility (Complete) data for SELENIUM DIOXIDE (6 total), please visit the HSDB record page.Solubility in water, g/100ml at 20 °C: 40H2O: 용해성
Corrosivity	In presence of water will corrode most metals... Soluble in water forming selenic acid, a corrosive material. ...
끓는 점	599 °F at 760 mmHg (sublimes) (USCG, 1999)684.9 °C(lit.)
Decomposition	When heated to decomposition ... emits toxic fumes of /selenium/.
녹는점	340 °C under pressure315 °C (subl.)(lit.)
후각 역치	0.0002 mg/cu mAir: 2.0 ppm
증기압	12.5 mm Hg at 70 °C20.2 mm Hg at 94 °C39.0 mm Hg at 181 °C760 mm Hg at 315 °C848 mm Hg at 320 °CVapor pressure, kPa at 70 °C: 1.651 mm Hg ( 157 °C)
굴절률	nD20 <1.76
인화점	315°C
저장 조건	Store below +30°C.
물리적 상태	가루
색상	하얀색
비중	3.95
pH	2 (10g/l, H2O, 20℃)
용해도	38.4 g/100 mL (14 ºC)
Merck	14,8434
안정성	안정적인. 유기 물질, 강산, 암모니아, 질산, 할로겐산과 호환되지 않습니다. 습기로부터 보호하십시오.
InChI	1S/O2Se/c1-3-2
InChIKey	JPJALAQPGMAKDF-UHFFFAOYSA-N
SMILES	O=[Se]=O
NIST	Selenium dioxide(7446-08-4)
EPA	Selenium dioxide (7446-08-4)

화학적 성질

Selenium dioxide is white to slightly reddish crystalline solid or yellow liquid which forms a yellowgreen vapor. It has a sour and pungent odor. Odor threshold in air50.0002 milligram per cubic meter.

안전 및 규제

GHS 분류	DangerH301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]P260, P261, P264, P264+P265, P270, P271, P273, P280, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P321, P330, P363, P391, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 264 reports by companies from 21 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H301: Toxic if swallowed [Danger Acute toxicity, oral]
규제 정보	Chemical: Selenium oxide (SeO2)Status: Active Update: 14-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/11470Selenium oxide: HSNO Approval: HSR003738 Approved with controlsThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
운송 라벨(DOT)	Poison
화재 위험	Special Hazards of Combustion Products: Sublimes and forms toxic vapors when heated in fire. (USCG, 1999)Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
건강 유해성	Absorption of selenium may be demonstrated by presence of the element in the urine and by a garlic-like odor of the breath. Inhalation of dust can cause bronchial spasms, symptoms of asphyxiation, and pneumonitis. Acute symptoms of ingestion include sternal pain, cough, nausea, pallor, coated tongue, gastrointestinal disorders, nervousness, and conjunctivitis. Contact with eyes causes irritation. (USCG, 1999)
유해성 요약	Reacts with water to produce selenious acidCan cause severe burns and irritation of the eyes and respiratory tractA strong vesicant and is absorbed through the skin[Olson, p. 761] A corrosive substance that can induce pulmonary edemaHas potential to cause skin sensitization and liver injury[ICSC] See Selenium.
반응성 그룹	Oxidizing Agents, Strong
EC 분류	Symbol: T, NR: 23/25-33-50/53

용도

이산화 셀레늄은 주로 다음과 같은 용도로 사용된다： 유기물의 합성에서 산화제나 촉매로 사용된다. 셀레늄 화합물 합성의 원료로 사용된다.

용도

Selenium dioxide (SeO2) is used as an oxidizing agent, as a catalyst, and as an antioxidant for lubricating oils and grease.

일반 설명

A white or creamy-white volatile lustrous crystal or crystalline powder with a pungent sour smell. Melting point 340°C. Density 3.954 g / cm3 . Toxic by ingestion and inhalation.

제조 및 합성 방법

생산 방법

While selenium dioxide, SeO2, can be produced by direct reaction of the element with oxygen activated by passage through HNO3, the compound is easily made by heating selenious acid, H2SeO3. Selenium dioxide sublimes at 315–317 °C (599–603 °F), and is readily reduced by SO2 to elemental selenium.