이산화셀레늄
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이산화셀레늄 속성
- 녹는점
- 315 °C (subl.)(lit.)
- 끓는 점
- 684.9 °C(lit.)
- 밀도
- 4.81 g/mL at 25 °C(lit.)
- 증기압
- 1 mm Hg ( 157 °C)
- 굴절률
- nD20 <1.76
- 인화점
- 315°C
- 저장 조건
- Store below +30°C.
- 용해도
- H2O: 용해성
- 물리적 상태
- 가루
- 색상
- 하얀색
- Specific Gravity
- 3.95
- 수소이온지수(pH)
- 2 (10g/l, H2O, 20℃)
- 수용성
- 38.4 g/100 mL (14 ºC)
- 승화점
- 315 ºC
- Merck
- 14,8434
- 노출 한도
- ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
- 안정성
- 안정적인. 유기 물질, 강산, 암모니아, 질산, 할로겐산과 호환되지 않습니다. 습기로부터 보호하십시오.
- CAS 데이터베이스
- 7446-08-4(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | T,N,Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 36/38-50/53-33-23/25-51/53-20/22 | ||
안전지침서 | 26-61-60-45-28A-20/21-28 | ||
유엔번호(UN No.) | UN 3440 6.1/PG 3 | ||
WGK 독일 | 2 | ||
RTECS 번호 | VS8575000 | ||
F 고인화성물질 | 3 | ||
TSCA | Yes | ||
HS 번호 | 2811 29 90 | ||
위험 등급 | 6.1 | ||
포장분류 | II | ||
유해 물질 데이터 | 7446-08-4(Hazardous Substances Data) | ||
독성 | LD50 orally in Rabbit: 68.1 mg/kg | ||
기존화학 물질 | KE-30926 | ||
유해화학물질 필터링 | 97-1-134 | ||
함량 및 규제정보 | 물질구분: 유독물질; 혼합물(제품)함량정보: 셀레늄 또는 그 화합물과 셀렌화합물을 1% 이상 함유한 혼합물 |
이산화셀레늄 C화학적 특성, 용도, 생산
물성
사슬 모양의 거대 분자이다. 상온에서는 백색의 흡습성 결정으로 존재한다. 액체는 등청색이며, 기체는 황록색이다. 317°C에서 승화한다. 비중은 3.954이다. 물, 에탄올, 아세트산에 잘 녹는다. 환원되기 쉬운 물질이다. 공기 중의 먼지에 의해서도 분해된다. 물에 녹일 경우 아셀렌산을 형성하며 녹는다.용도
이산화 셀레늄은 주로 다음과 같은 용도로 사용된다: 유기물의 합성에서 산화제나 촉매로 사용된다. 셀레늄 화합물 합성의 원료로 사용된다.안전성
이산화 셀레늄은 독성이 있는 화합물이다. 만성적으로 접촉할 경우 창백함, 설태, 위장 질환, 신경쇠약 등을 일으킬 수 있다. 이산화 셀레늄과 같이 물에 녹을 수 있는 셀레늄 화합물은 독성이 강한데, 이는 물질이 체내의 설파이드릴 효소를 공격하기 때문인 것으로 추정된다.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.용도
Selenium dioxide (SeO2) is used as an oxidizing agent, as a catalyst, and as an antioxidant for lubricating oils and grease.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.일반 설명
A white or creamy-white volatile lustrous crystal or crystalline powder with a pungent sour smell. Melting point 340 deg C. Density 3.954 g / cm3 . Toxic by ingestion and inhalation.공기와 물의 반응
In presence of water will corrode most metals [USCG, 1999]. Readily soluble in water forming selenious (selenous) acid.반응 프로필
Inorganic oxidizing agents, such as Selenium dioxide , react with reducing agents to generate heat and products that may be flammable, combustible, or otherwise reactive. Selenium dioxide reacts with water, particularly hot water, to give selenious (selenous) acid, a weak acid that is corrosive. Stable to light and heat. Rapidly absorbs dry hydrogen fluoride, hydrogen chloride, hydrogen bromide to form the corresponding selenium oxohalide. A good oxidizing agent. Reacts oxidatively with ammonia to form dinitrogen gas and selenium [Merck]. Oxidizes many organic substances.위험도
Toxic by inhalation, ingestion, and skin absorption.건강위험
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.화재위험
Special Hazards of Combustion Products: Sublimes and forms toxic vapors when heated in fire.잠재적 노출
Selenium dioxide is used in the manufacture of selenium compounds, a reagent for alkaloids; an oxidizing agent; in paint and ink pigments; in metal “blueing” and etching; as a chemical catalyst; in photographic toners; in electric and photoelectric components; and others.운송 방법
UN3283Selenium compound, solid, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous material, Technical Name Required.Purification Methods
Purify it by sublimation at 315o, or by solution in HNO3, precipitation of selenium which, after standing for several hours or boiling, is filtered off, then re-oxidised by HNO3 and cautiously evaporated to dryness below 200o. The dioxide is dissolved in H2O and again evaporated to dryness. In H2O it forms selenious acid (see selenious acid above). Its solubility in H2O is 70%w/w at 20o, and it is soluble in EtOH. [Waitkins & Clark Chem Rev 36 235 1945, Fehér in Handbook of Preparative Inorganic Chemistry (Ed Brauer) Academic Press Vol I p 421 1963.]비 호환성
Selenium dioxide is and inorganic oxidizer; reacts, possibly violently, with reducing agents such as hydrides, nitrides, alkali metals, and sulfides. Contact with strong acids may cause release of toxic hydrogen selenide gas. Water solution is a medium-strong acid (selenious acid). Rapidly absorbs dry hydrogen fluoride, hydrogen bromide, hydrogen chloride, to form corresponding selenium oxohalides. Reacts with many substances producing toxic selenium vapors. Attacks many metals in presence of water.폐기물 처리
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal.이산화셀레늄 준비 용품 및 원자재
원자재
준비 용품
1-METHYL-3-PHENYL-1H-PYRAZOLE-5-CARBALDEHYDE
4-QUINOXALIN-2-YLPHENOL
8-Hydroxyquinoline-2-carboxaldehyde
셀레늄
1-(BROMOMETHYL)ISOQUINOLINE HYDROBROMIDE
6-Methoxypyridine-2-carbaldehyde
4-METHYL-5-NITRO-2-PYRIDINECARBOXYLIC ACID
8-(TRIFLUOROMETHYL)QUINOLINE-2-CARBALDEHYDE
2,4-BIS(DIMETHYLAMINO)PYRIMIDINE-6-CARBOXYLIC ACID
2-퀴놀린카르복살데히드
1,5-NAPHTHYRIDINE-2-CARBOXYLICACID
6-Quinolinylmethanol
diethyl pyridazine-3,4-dicarboxylate
6-CARBOXY-2,4-DIHYDROXYPYRIMIDINE MONOSODIUM SALT
3-퀴놀린카르복살데히드
소듐 셀레나이트 펜타하이드레이트
4-피리딘카르복살이하이드 N-옥사이드
ETHYL 2-OXO-2-(PYRIDIN-4-YL)ACETATE
8-Quinolinecarbaldehyde
5-METHYLPICOLINIC ACID
Calcipotriene
이황화 셀레늄(이황화 셀렌)
1-(4-METHOXYPHENYL)-5-METHYL-1H-PYRAZOLE-4-CARBALDEHYDE
3-METHYL-4-PYRIDINECARBOXYLIC ACID
Prednisone 21-acetate
6-Quinolinecarbaldehyde
2,6-피리딘디카르복살디하이드
오로트 산
2-QUINOXALINECARBALDEHYDE
Quinoline-7-carbaldehyde
프레드니손
4-Pyrimidinecarboxylic acid
2-HYDROXY-4-PYRIDINECARBOXALDEHYDE
Potassium orotate
1,2-사이클로헥산디온
6-FORMYL-URACIL MONOHYDRATE
HPG
METHYL 8-AMINOQUINOLINE-4-CARBOXYLATE
3-METHYL-4-PYRIDINECARBOXALDEHYDE
소듐 셀레나이트
이산화셀레늄 공급 업체
글로벌( 311)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12452 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21700 | 55 |
Shanxi Naipu Import and Export Co.,Ltd | +86-13734021967 +8613734021967 |
kaia@neputrading.com | China | 1011 | 58 |
career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8823 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Shandong chuangyingchemical Co., Ltd. | 18853181302 |
sale@chuangyingchem.com | CHINA | 5909 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 47465 | 58 |