Hafnium boride (HfB2)
기본 정보
- CAS
12007-23-7- 표준 SMILES
[B].[B].[Hf]- InChIKey
VFOMGQXFCYKNAF-UHFFFAOYSA-N- 분자식
- B2Hf
- 평균 분자량
- 200.11 g/mol
- 단동위원소 질량
- 201.96517
개요
See also: Hafnium boride (annotation moved to).
이름 및 식별자
- 우선 이름
- Hafnium boride (HfB2)
- 영어명
- HAFNIUM BORIDE
- 분자식
- B2Hf-
- 분자량
- 200.11
이름 및 동의어
12007-23-7EINECS 234-500-7RefChem:144999Hafnium boride (HfB2)Hafnium borideHafnium diborideCID 6336857MFCD23713084Borane--hafnium (2/1)SCHEMBL29366007DTXSID10893925LRTTZMZPZHBOPO-UHFFFAOYSA-N
이름 더 보기
HafniuM boridHafnium boride HfB2Hafnium boride powderhafnium,λ2-boranylideneboronHafnium boride powder (HfB2)Hafnium boride, CAS 12007-23-7Hafnium boride, 99% (metals basis)hafnium,λsup2sup-boranylideneboron
Hafnium boride, powder, 200-300 mesh, 99.0%(metals basis excluding Zr
데이터베이스 식별자
- CAS
12007-23-7- PubChem CID
- 6336857
- DTXSID
DTXSID10893925- EC Number
- 234-500-7
물성
구조 계산 물성
- 극성 표면적
- 0 Ų
- 수소 결합 공여자 수
- 0
- 수소 결합 수용자 수
- 0
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 3
- 형식 전하
- 0
- 복잡도
- 0
실험 및 물리화학적 성질
Chemical ClassesMetals -> Metals, Inorganic Compounds
Physical DescriptionGrey odorless powder; [Alfa Aesar MSDS]
물리화학적 성질
- 녹는점
- 3250 °C · 3250°C
- 밀도
- 10.5 · 10.5
- 물리적 상태
- 가루
- Specific Gravity
- 10.5 · 10.5
- 색상
- gray hexagonal, hexane crystals, crystalline
- 수용성
- 물에 불용성.
- InChI
- InChI=1S/B2H4.Hf/c1-2;/h1-2H2;/q-4;+3
- InChIKey
- VFOMGQXFCYKNAF-UHFFFAOYSA-N
- SMILES
- [B-2][B-2].[Hf+3]
- EPA
- Hafnium boride (HfB2) (12007-23-7)
화학적 성질
gray, hexagonal, crystal(s) solid, a=0.3141 nm, c=0.3470nm; can be prepared by heating HfO2+C+B2O3; hardness 2900 kgf/mm2; resistivity 8.8μohm· cm; used as a refractory material and as a sputtering target with 99.5% purity to produce films, which may be wear-resistant and semiconducting [HAW93] [KIR80] [CER91]
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 1.4% (3 of 212) of reports.
Warning
H315 (98.6%): 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 212 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
유해성 정보
Hazards SummaryPowder is a skin and eye irritant; [Alfa Aesar MSDS] See Hafnium.
Hazard Classes and CategoriesSkin Irrit. 2 (98.6%)
안전 및 보호
Threshold Limit Values (TLV)0.5 [mg/m3], as Hf
Permissible Exposure Limit (PEL)0.5 [mg/m3], as Hf
Immediately Dangerous to Life or Health (IDLH)50.0 [mg/m3], as Hf
안전 데이터
- wgk
- 3
- tsca
- TSCA listed
- risk_code
- 36/37/38
- hazard_code
- Xi
- safety_code
- 26
- 기존화학 물질
- KE-18171
화학 및 산업
용도 및 제조
General Manufacturing InformationHafnium boride (HfB2): ACTIVE
응용 분야
용도Hafnium boride is used in wear resistant coatings. It is also employed as a nuclear reactor control rod. Furthermore, it is used in hypervelocity re-entry vehicles like ICBM heat shields or aerodynamic leading-edges. It is useful in the preparation of high temperature composites in conjunction with silicon carbide (SiC).
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