산화 란탄
Lanthanum sesquioxide
기본 정보
- CAS
1312-81-8- 표준 SMILES
[La+3].[La+3].[O-2].[O-2].[O-2]- InChIKey
MRELNEQAGSRDBK-UHFFFAOYSA-N- 분자식
- La2O3
- 평균 분자량
- 325.809 g/mol
- 단동위원소 질량
- 325.79747
이름 및 식별자
- 우선 이름
- Lanthanum sesquioxide
- IUPAC
- bis(lanthanum(3+));tris(oxygen(2-))
- 현지명
- 산화 란탄
- 영어명
- Lanthanum oxide
- 분자식
- La2O3
- 분자량
- 325.81
이름 및 동의어
Lanthanum oxide1312-81-8LanthanaLanthanum sesquioxideLanthanum oxide (La2O3)Dilanthanum trioxideDilanthanum oxideLanthanum(3+) oxideLanthanum trioxideLanthania (La2O3)4QI5EL790WLa(2)O(3)
이름 더 보기
산화란타넘(산화란탄)산화란탄라우릭산라우르산도데칸오익산라우로스테아릭산도데코익산듀오-디시클릭산하이드산화란타늄산화란타넘(산화란탄)(LANTHANUMOXIDE)란타넘 세스퀴옥사이드산화 란타넘산화 란타넘 (La2O3)산화 란타넘(3+)산화 란타넘(III)산화 이란타넘삼산화 란타넘삼산화 이란타넘Lanthanum(Ⅲ) oxideLANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%LANTHANUM OXIDE, 99.99%O3La2lathanialanthaniaLanthanoxidLanthan oxide99.999% (REO)
RefChem:152325DTXCID4030209215-200-5682-684-6DTXSID7051478Lanthanum(III) oxideLanthanum(III)OxideLa2O3
데이터베이스 식별자
- CAS
1312-81-8- PubChem CID
- 150906
- UNII
- 4QI5EL790W
- EC Number
- 215-200-5、682-684-6
물성
구조 계산 물성
- 극성 표면적
- 3 Ų
- 수소 결합 공여자 수
- 0
- 수소 결합 수용자 수
- 3
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 5
- 형식 전하
- 0
- 복잡도
- 0
실험 및 물리화학적 성질
Chemical ClassesMetals -> Rare Earth Metals
SpringerMaterials Propertiesdielectric constant
Density6.51 @25 °C
Boiling Point3620 °C @760 [mm Hg]
Melting Point2304 °C
Physical Description
Other Solid; Dry Powder; Large Crystals
White solid; Insoluble in water; [Merck Index] Soluble in acids; [Hawley]
물리화학적 성질
- 녹는점
- 2315 °C · 2315 °C
- 끓는 점
- 4200 °C · 4200 °C
- 밀도
- 6.51 g/mL · 6.51 g/mL at 25 °C(lit.)
- 인화점
- 4200 °C · 4200°C
- 저장 조건
- no restrictions.
- 용해도
- 2 O; · insoluble in H2O; soluble in dilute acid solutions
- 물리적 상태
- 나노분말
- 색상
- 흰색에서 노란색으로
- Specific Gravity
- 6.51 · 6.51
안전 및 규제
안전 정보는 참고용이며, 공급업체의 물질안전보건자료(SDS), 관련 법규 및 전문가 평가를 대체하지 않습니다.
GHS 분류
GHS Classification
This chemical does not meet GHS hazard criteria for 59.9% (370 of 618) of all reports.
Warning
H315 (39.5%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 618 reports by companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Not Classified
유해성 정보
Regulatory Information
Chemical: Lanthanum oxide (La2O3)
Lanthanum oxide (La2O3) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Lanthanum oxide (La2O3) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Lanthanum oxide (EC: 215-200-5)
Lanthanum oxide (La2O3): Does not have an individual approval but may be used under an appropriate group standard
Hazards SummarySee Lanthanum. See RARE EARTH METALS and linked occupational diseases.
Hazard Classes and Categories
Skin Irrit. 2 (39.5%)
Not Classified
안전 및 보호
Protective Action Criteria (PAC)
30 [mg/m3]
330 [mg/m3]
2000 [mg/m3]
독성 정보
화학 및 산업
용도 및 제조
Uses
Used in calcium lights, optical glass, ceramics, carbon-arc electrodes, phosphors, and refractories; [Hawley]
Glass Manufacturing [Category: Industry]
U.S. Production2023: 40,000,000 - <55,000,000 lb
Consumer UsesCatalyst
Industry UsesCatalyst
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
Lanthanum oxide (La2O3): ACTIVE
응용 분야
용도광학 유리 부품, 광학 섬유 제작, 세라믹 산업, 촉매.
용도Lanthanum oxide is used to make high-quality glass, ceramics, carbon-arc electrodes, and fluorescent lamps. Lanthanum (III) oxide was used as an analytical standard in inductively coupled plasma atomic emission spectrometry (ICP-AES) for chemical characterization of ancient pottery.
일반 설명Lanthanum (III) oxide is an alkaline earth oxide, and is a diamagnetic, isostructural analog of neodymium oxide. It is also an efficient recyclable catalyst, and can be used in coupling various aryl halides with aromatic/alkyl thiols.
제조 방법
Lanthanum oxide can be produced by direct combustion of lanthanum in oxygen or air. The oxide also may be prepared by decomposition of an oxo salt of lanthanum, such as nitrate, sulfate, carbonate, hydroxide or oxalate. La(CO3)3•8H2O → La2O3 + 3CO2 + 8H2O 2La2(C2O4)3•9H2O + 3O2 → 2La2O3 + 12CO2 + 18H2O
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