몰리브덴 무수물
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몰리브덴 무수물 속성
- 녹는점
- 795 °C(lit.)
- 끓는 점
- 1155 °C
- 밀도
- 4.692
- 증기압
- 0Pa at 20℃
- 인화점
- 1155°C subl.
- 저장 조건
- Store at +5°C to +30°C.
- 용해도
- 0.49g/L
- 물리적 상태
- 가루 같은
- Specific Gravity
- 4.69
- 색상
- 흰색에서 회색으로
- 수용성
- 0.5g/L(20℃)
- Merck
- 14,6239
- 노출 한도
- ACGIH: TWA 10 mg/m3; TWA 3 mg/m3
NIOSH: IDLH 5000 mg/m3
- InChIKey
- JKQOBWVOAYFWKG-UHFFFAOYSA-N
- CAS 데이터베이스
- 1313-27-5(CAS DataBase Reference)
- IARC
- 2B (Vol. 118) 2018
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn,Xi | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 36/37-48/20/22-40 | ||
| 안전지침서 | 22-23-25-36/37 | ||
| WGK 독일 | 1 | ||
| RTECS 번호 | QA4725000 | ||
| TSCA | Yes | ||
| 위험 등급 | 6.1 | ||
| HS 번호 | 28257000 | ||
| 유해 물질 데이터 | 1313-27-5(Hazardous Substances Data) | ||
| 독성 | LD50 orally in Rabbit: 2689 mg/kg LD50 dermal Rat > 2000 mg/kg | ||
| 기존화학 물질 | KE-25462 |
몰리브덴 무수물 C화학적 특성, 용도, 생산
화학적 성질
Molybdenum trioxide is an odorless, white crystalline powder that turns yellow when heated.
Molybdenum trioxide is perhaps the most important compound of molybdenum. Pure molybdenum trioxide is used in chemical and catalyst manufacture. The technical product is added to steel as an alloying agent. Molybdenum trioxide also serves as a catalyst in the petroleum industry and as a component of ceramics, enamels and pigments.
물리적 성질
Soft white powder; orthorhombic crystals; turns yellow on heating; density 4.69 g/cm3 at 21°C; melts at 795°C without decomposition to a dark yellow liquid; vapor pressure 20 torr at 851°C and 200 torr at 1,014°C; boils at 1,155°C; sparingly soluble in cold water (1.066 g/L at 18°C) and moderately soluble in hot water (20.55 g/L at 70°C); dissolves in acids and alkalies.용도
Molybdenum trioxide (MnO3) is a compound used to make enamels adhere to metals.제조 방법
Molybdenum(VI) oxide is obtained by igniting molybdenum or its compounds in air:2Mo + 3O2 → 2MoO3
2MoS2 + 7O2 → 2MoO3 + 4SO2
MoS2 + 4O2 → MoO3 + SO2 + SO3
Roasting the sulfide is carried out in a multiple-hearth roaster under controlled temperature and airflow. The product mixture is sublimed to obtain high purity oxide.
Purified molybdenum(VI) oxide also is made by prolonged heating of ammonium molybdate in air:
(NH4)2Mo2O7 → 2MoO3 + 2NH3 + H2O
An alternative method involves repeatedly evaporating a mixture of ammonium molybdate and nitric acid. Ammonium nitrate so formed is separated from the product molybdenum(VI) oxide by extraction with water:
(NH4)2Mo2O7 + 2HNO3 → 2MoO3 + 2NH4NO3 + H2O
일반 설명
Colorless to white or yellow odorless solid. Sinks in water.공기와 물의 반응
Insoluble in water.반응 프로필
Molybdenum trioxide reacts violently with chlorine trifluoride, lithium, potassium and sodium. Readily combines with acids and bases to form a series of polymeric compounds. Incompatible with interhalogens and metals. A violent detonation occurs when heated with molten magnesium.위험도
Toxic material.건강위험
Compound is relatively nontoxic. Dust irritates eyes.화재위험
Flash point data for Molybdenum trioxide are not available, but Molybdenum trioxide is probably non-flammable.Safety Profile
Poison by ingestion, subcutaneous, and intraperitoneal routes. Human systemic effects by inhalation: pulmonary fibrosis and cough. Questionable carcinogen with experimental neoplastigenic data. A powerful irritant. Explodes on contact with molten magnesium. Violent reaction with interhalogens (e.g., bromine pentafluoride, chlorine trifluoride). Incandescent reaction with hot sodium, potassium, or lithium. When heated to decomposition it emits toxic fumes of Mo.잠재적 노출
Molybdenum trioxide is used in agriculture; manufacture of metallic molybdenum, ceramic glazes; enamels, pigments, and in analytical chemistry.운송 방법
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.Purification Methods
Crystallise it from water (1g/50mL) between 70o and 0o. The solubility in H2O is 0.1% at 18o, and 2% at 70o. It is a white powder which turns yellow reversibly on heating. It sublimes readily at 1155o/760mm. [Hein & Herzog Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1412 1965.]비 호환성
Explodes on contact with molten magnesium. Violent reaction with strong oxidizers, such as chlorine trifluoride; bromine pentafluoride. Not compatible with strong acids; active metals (sodium, potassium, lithium).몰리브덴 무수물 준비 용품 및 원자재
원자재
준비 용품
몰리브덴 무수물 공급 업체
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| Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 |
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| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
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| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
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| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 |
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| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
| TopScience Biochemical | 00852-68527855 |
info@itopbiochem.com | China Hong Kong | 902 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569265 +86-18612256290 |
1056@dideu.com | China | 3683 | 58 |