삼산화텅스텐
|
|
삼산화텅스텐 속성
- 녹는점
- 1470-1475 °C
- 끓는 점
- 1837°C (estimate)
- 밀도
- 7.16 g/mL at 25 °C(lit.)
- 저장 조건
- Room Temperature
- 용해도
- insoluble in H2O, organic solvents; slightly soluble in acid solutions; soluble in alkaline solutions
- 물리적 상태
- 가루
- Specific Gravity
- 7.16
- 색상
- 노란색에서 녹황색까지
- 수용성
- 불용성
- Merck
- 14,9817
- 노출 한도
- ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
- InChIKey
- ZNOKGRXACCSDPY-UHFFFAOYSA-N
- CAS 데이터베이스
- 1314-35-8(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 22-36/37/38 | ||
| 안전지침서 | 26-36-37/39 | ||
| WGK 독일 | - | ||
| RTECS 번호 | YO7760000 | ||
| F 고인화성물질 | 21 | ||
| TSCA | Yes | ||
| HS 번호 | 28259012 | ||
| 유해 물질 데이터 | 1314-35-8(Hazardous Substances Data) | ||
| 독성 | rat,LD50,oral,1059mg/kg (1059mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)BEHAVIORAL: EXCITEMENTBEHAVIORAL: MUSCLE WEAKNESS,Hygiene and Sanitation Vol. 31(7-9), Pg. 197, 1966. | ||
| 기존화학 물질 | KE-35023 |
삼산화텅스텐 C화학적 특성, 용도, 생산
화학적 성질
Canary-yellow, heavy powder, darkorange when heated and regains original color on cooling. Insoluble in water, soluble in caustic alkalies, soluble with difficulty in acids. Noncombustible.물리적 성질
Heavy yellow powder; turns dark orange on heating; reverts back to yellow on cooling; density 7.2 g/cm3; melts at 1,472°C; insoluble in water; slightly soluble in acids; soluble in caustic alkalies.용도
manufacture of tungstates which are used for x-ray screens and for fireproofing fabrics.제조 방법
Tungsten trioxide is obtained as an intermediate in recovery of tungsten from its minerals (See Tungsten). In commerical processes tungstic acid, H2WO4, obtained from the mineral scheelite, may either be decomposed at high temperatures to form trioxide or dissolved in ammonium hydroxide solution and evaporated to yield ammonium paratungstate (APT) crystals, 5 (NH4)2O?12WO3?11H2O. The APT crystals are then washed, dried, and calcined at elevated temperatures to form tungsten trioxideTungsten trioxide, in general, can be made by heating metallic tungsten, its carbides, its lower oxides, or tungstic acid in air.
일반 설명
Tungsten(VI) oxide (WO3) is a semiconducting material with excellent electrochromic properties. It is a cost efficient material with a high optical modulation. It can be synthesized by a variety of methods which include chemical vapor deposition, electrodeposition, and other sol-gel based coating processes.위험도
Toxic material.Safety Profile
Moderately toxic by ingestion. Can react violently with ClF3, Li, Cl2. See also TUNGSTEN COMPOUNDS.Structure and conformation
The crystal structure of tungsten trioxide is temperature dependent. It is tetragonal at temperatures above 740℃, orthorhombic from 330 to 740 °C, monoclinic from 17 to 330 °C, triclinic from -50 to 17 °C, and monoclinic again at temperatures below -50 °C.The most common structure of WO3 is monoclinic with space group P21/n.삼산화텅스텐 준비 용품 및 원자재
원자재
준비 용품
삼산화텅스텐 공급 업체
글로벌( 333)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Anhui Royal Chemical Co., Ltd. | +86-25-86655873 +8613962173137 |
marketing@royal-chem.com | China | 142 | 55 |
| Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 |
sales@zhuoerchem.com | China | 3015 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12456 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 5993 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15928 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21691 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 |
fandachem@gmail.com | China | 9348 | 55 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 |
sales@sdzschem.com | China | 2931 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |