이산화텅스텐
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이산화텅스텐 속성
- 녹는점
- 1500-1600°C
- 끓는 점
- 1730℃[at 101 325 Pa]
- 밀도
- 12,11 g/cm3
- 용해도
- insoluble in H2O, organic solvents
- 물리적 상태
- 가루
- Specific Gravity
- 12.11
- 색상
- 갈색
- 수용성
- 산과 수산화칼륨에 용해됩니다. 물에 불용성.
- 노출 한도
- ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
- CAS 데이터베이스
- 12036-22-5(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
이산화텅스텐 C화학적 특성, 용도, 생산
개요
Tungsten(IV) oxide, WO2, is a bronze-colored solid that crystallizes in a monoclinic cell. The rutile-like structure features distorted octahedral WO6 centers with alternate short W-W bonds (248 pm). Each tungsten center has the d2 configuration, which gives the material a high electrical conductivity. WO2 is prepared by reduction of WO3 with tungsten powder in about 40 h at 900℃. An intermediate in this reaction is the partially reduced, mixed valence species W18O49.2WO3 + W→3WO2
화학적 성질
brown powder(s), may become purple on standing; formed when WO3 is reduced by H2 at 575°C–600°C [KIR83] [STR93]용도
Tungsten(IV) oxide is used in the production of tungsten and tungstates, in alloys, in fire-proofing fabrics and as a ceramic pigment. It is used to study their chromism, photocatalysis and sensing capabilities. It is associated with rhenium trioxide particles and used for detection of protonatable, radical and precharged species under laser desorption ionization.이산화텅스텐 준비 용품 및 원자재
원자재
준비 용품
이산화텅스텐 공급 업체
글로벌( 118)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29897 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39916 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34571 | 58 |
ANHUI WITOP BIOTECH CO., LTD | +8615255079626 |
eric@witopchemical.com | China | 23556 | 58 |
Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 |
sales@zhuoerchem.com | China | 3005 | 58 |
changzhou huayang technology co., ltd | +8615250961469 |
2571773637@qq.com | China | 9821 | 58 |
Alfa Chemistry | +1-5166625404 |
Info@alfa-chemistry.com | United States | 21317 | 58 |
Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 |
1026@dideu.com | China | 9003 | 58 |
LEAPCHEM CO., LTD. | +86-852-30606658 |
market18@leapchem.com | China | 43348 | 58 |