불가화 바륨
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불가화 바륨 속성
- 녹는점
- 1354 °C
- 끓는 점
- 2260 °C(lit.)
- 밀도
- 4.89 g/mL at 25 °C(lit.)
- 증기압
- 0Pa at 20℃
- 굴절률
- 1.4741
- 인화점
- 2260°C
- 저장 조건
- Store at +5°C to +30°C.
- 용해도
- 1.2g/L
- 물리적 상태
- 랜덤 크리스털
- 색상
- 하얀색
- Specific Gravity
- 4.89
- 수용성
- 1.6g/L(20℃)
- 감도
- Hygroscopic
- Crystal Structure
- CaF2 type
- crystal system
- Cube
- Merck
- 14,974
- Solubility Product Constant (Ksp)
- pKsp: 6.74
- Space group
- Fm3m
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 0.62 0.62 0.62 90 90 90 0.238
- Dielectric constant
- 7.3600000000000003
- 노출 한도
- ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
- 안정성
- 안정적인. 산과 호환되지 않습니다.
- InChIKey
- OYLGJCQECKOTOL-UHFFFAOYSA-L
- CAS 데이터베이스
- 7787-32-8(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn,T | ||
---|---|---|---|
위험 카페고리 넘버 | 20/22 | ||
안전지침서 | 28-28A | ||
유엔번호(UN No.) | UN 2811 6.1/PG 3 | ||
WGK 독일 | 1 | ||
RTECS 번호 | CQ9100000 | ||
위험 참고 사항 | Toxic | ||
TSCA | Yes | ||
위험 등급 | 6.1 | ||
포장분류 | III | ||
HS 번호 | 28261990 | ||
독성 | LD50 orally in Rabbit: 250 mg/kg | ||
기존화학 물질 | KE-02052 |
불가화 바륨 C화학적 특성, 용도, 생산
개요
Barium fluoride appears as colourless, odourless crystals/white powder and is slightly soluble in water but soluble in ethanol and methanol. When heated, barium fluoride decomposes and emits toxic fumes of fluorine and barium. Barium fluoride is used as a preopacifying agent and in enamel and glazing frits production. Its other use is in the production of welding agents (an additive to some fluxes, a component of coatings for welding rods and in welding powders). It is also used in metallurgy as a molten bath for refining aluminium.화학적 성질
Barium fluoride, BaF2, is a white crystal or powder.Under the microscope crystals may be clear and colorless. Barium fluoride is used commercially in combination with other fluorides for arc welding (qv) electrode fluxes.물리적 성질
Barium fluoride (BaF2), also known as barium(II) fluoride, is a solid which can also be a transparent crystal. Its molecular weight is 175.34 g/mol. It occurs in nature as the mineral “Frankdicksonite”. It occurs as a white powder with a melting point of 1290 and a boiling point of 2259°C. It is slightly soluble in water (0.159 at 0.0°C and 0.162 g/100 ml of water at 20°C). The solid generally assumes the fluorite structure, but when subjected to high pressure, changes to the PbCl2 structure. In the vapor phase, the BaF2 molecule is nonlinear with an F–Ba–F angle of approximately 108°C.용도
Barium Fluoride is used in ceramic flux, carbon brushes for electrical equipment, glass making, in the manufacture of other fluorides, crystals for spectroscopy, electronics and dry-film lubricants. Barium Fluoride is used in spectroscopic components. Barium Fluoride is often suitable for applications in the passive IR band (8 to 14 ?m) and is often used as a viewport window for thermography.Safety Profile
A poison by ingestion and intraperitoneal routes. Moderately toxic by subcutaneous route. An experimental teratogen. See also FLUORIDES and BARIUM COMPOUNDS (soluble). When heated to decomposition it emits toxic fumes of F-.Purification Methods
Wash it well with distilled H2O and dry it in a vacuum. Its solubility in H2O is 1.6g (10o), 1.6g (20o) and 1.62g (30o) per L, and is soluble in mineral acids and aqueous NH4Cl. It may be stored in glass bottles. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 234 1963.]Structure and conformation
The space lattice of Barium fluoride (BaF2) belongs to the cubic system, and its calcium fluoride structure has a lattice constant of a=0.6187 nm and Ba–F=0.268 nm.불가화 바륨 준비 용품 및 원자재
원자재
준비 용품
불가화 바륨 공급 업체
글로벌( 332)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 |
sales@hbmojin.com | China | 12446 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 |
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Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29798 | 60 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21667 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29888 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8820 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39916 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 |
sales@tnjchem.com | China | 34571 | 58 |