기본 정보
- 표준 SMILES
[O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5]- InChIKey
BPUBBGLMJRNUCC-UHFFFAOYSA-N- 분자식
- O5Ta2
- 평균 분자량
- 441.89 g/mol
- 단동위원소 질량
- 441.8705647
이름 및 식별자
- 우선 이름
- Tantalum pentoxide
- IUPAC
- pentakis(oxygen(2-));bis(tantalum(5+))
- 현지명
- 탄탈 오산화물
- 영어명
- Tantalum pentoxide
- 분자식
- O5Ta2
- 분자량
- 441.89
이름 및 동의어
Tantalum(V) oxideTantalum pentoxide1314-61-0Tantalum oxide (Ta2O5)Tantalic acid anhydrideDitantalum pentaoxideTantalum penta oxideOEZ64Z53M4DTXSID10893849tantalumpentoxideRefChem:891102DTXCID601323889
이름 더 보기
탄탈오산화물탄탈륨탄탈륨 5산화물탄탈륨(V)산화물Ta2-O5tantalic oxideTantalum(Ⅴ)oxideTANTALUM(+5)OXIDEtatalum pentoxideDitantalpentaoxidbis(tantalum(5+))
215-238-2TANTALUM OXIDETantalum oxide dustsoxygen(2-);tantalum(5+)EINECS 215-238-2UNII-OEZ64Z53M4TANTALUM PENTOXIDE [MI]EC 215-238-2
데이터베이스 식별자
- CAS
1314-61-0、59763-75-6- PubChem CID
- 62157
- DTXSID
DTXSID10893849- UNII
- OEZ64Z53M4
- EC Number
- 215-238-2
물성
구조 계산 물성
- 극성 표면적
- 5 Ų
- 수소 결합 공여자 수
- 0
- 수소 결합 수용자 수
- 5
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 7
- 형식 전하
- 0
- 복잡도
- 0
실험 및 물리화학적 성질
Chemical ClassesFlammable agents - 2nd degree
SpringerMaterials Propertiesdielectric constant
Density8.2 @25 °C
Melting Point1872 °C
Physical DescriptionDry Powder
물리화학적 성질
- 녹는점
- 1872 °C · 1872 °C
- 밀도
- 8.2 g/mL · 8.2 g/mL at 25 °C(lit.)
- 저장 조건
- Sealed in dry,Room Temperature
- 용해도
- 2 O, · insoluble in H2O, ethanol, acid solutions; sHF
- 물리적 상태
- 덩어리
- 색상
- 흰색에서 흰색-베이지색
- Specific Gravity
- 8.2 · 8.2
- 수용성
- 물에 불용성.
- 비열
- 0.31 J/ · Cp(crystal): 0.31 J/(g·K), at 25℃
- Merck
- 14 · 14,9056
- Dielectric constant
- 11.6 · 11.6(Ambient)
- InChI
- InChI=1S/5O.2Ta
- InChIKey
- PBCFLUZVCVVTBY-UHFFFAOYSA-N
- SMILES
- [Ta](=O)(=O)O[Ta](=O)=O
- EPA
- Tantalum oxide (Ta2O5) (1314-61-0)
화학적 성질
Tantalum pentoxide, Ta2O5, is a white powder existing in two thermodynamically stable modifications. The orthorombic b-phase changes at 1,360 °C (2,480 °F) into the tetragonal a-modification. The existence of an e-modification has also been reported. Tantalum pentoxide reacts slowly with hot hydrofluoric acid but is insoluble in water and in most solutions of acids and alkalies. For analytical purposes, it can be dissolved by fusion with alkali hydroxides, alkali carbonates, and potassium pyrosulfate.
안전 및 규제
GHS 분류
GHS Classification
This chemical does not meet GHS hazard criteria for 97.5% (78 of 80) of all reports.
Not Classified
Aggregated GHS information provided per 80 reports by companies from 3 notifications to the ECHA C&L Inventory.
유해성 정보
Regulatory Information
Chemical: Tantalum oxide (Ta2O5)
Tantalum oxide (Ta2O5) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Tantalum oxide (Ta2O5) 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)
Status: Active Update: 03-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/13430
Tantalum oxide dusts: Does not have an individual approval but may be used under an appropriate group standard
The 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.)
Hazard Classes and Categories
Not Classified
Flammable agents - 2nd degree
안전 및 보호
Protective Action Criteria (PAC)
10 [mg/m3]
260 [mg/m3]
1600 [mg/m3]
안전 데이터
- wgk
- -
- tsca
- TSCA listed
- rtecs
- WW5855000
- 독성
- LD50 orally in rats: 8000 mg/kg (Cochran)
- HS 번호
- 28259085
- risk_code
- 36/37/38
- hazard_code
- Xi
- safety_code
- 37/39-26
- 기존화학 물질
- KE-12704
- 스토리지 클래스
- 11 - Combustible Solids
화학 및 산업
용도 및 제조
U.S. Production2023: 75,000 - <500,000 lb
Consumer UsesNot Known or Reasonably Ascertainable
Industry UsesNot Known or Reasonably Ascertainable
General Manufacturing Information
Computer and Electronic Product Manufacturing
Tantalum oxide (Ta2O5): ACTIVE
응용 분야
용도Tantalum pentoxide is used in making high refractive index optical glass; as a dielectric film on tantalum for its use as a capacitor component and rectifier; and for preparing tantalum metal, its carbide, and many other tantalum compounds.
일반 설명Tantalum pentoxide is dielectric in nature making it useful for making capacitors in the electronics industry.
제조 방법
Tantalum pentoxide is obtained as an intermediate in extracting tantalum from the columbite-tantalite series of minerals. Also, the oxide can be made by heating Ta metal in oxygen or air at elevated temperatures.
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