탄탈럼(탄탈)
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탄탈럼(탄탈) 속성
- 녹는점
- 2996 °C (lit.)
- 끓는 점
- 5425 °C (lit.)
- 밀도
- 16.69 g/cm3 (lit.)
- 증기압
- <0.01 mm Hg ( 537.2 °C)
- 저장 조건
- no restrictions.
- 용해도
- reacts with HF
- 물리적 상태
- 철사
- 색상
- 회색에서 은색으로
- Specific Gravity
- 16.6
- 비저항
- 13.5 μΩ-cm, 20°C
- 수용성
- HF를 제외한 산에 대한 저항성이 매우 높음, 알칼리 용액에 대한 저항성 [KIR83]
- Merck
- 13,9143
- 노출 한도
- ACGIH: TWA 0.5 ppm(2.5 mg/m3); Ceiling 2 ppm (Skin)
OSHA: TWA 3 ppm
NIOSH: IDLH 30 ppm(250 mg/m3); TWA 3 ppm(2.5 mg/m3); Ceiling 6 ppm(5 mg/m3)
- 안정성
- 안정적인. 분말은 가연성이 매우 높습니다.
- InChIKey
- GUVRBAGPIYLISA-UHFFFAOYSA-N
- LogP
- -1 at 20℃
- CAS 데이터베이스
- 7440-25-7(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | F,Xi,Xn,C | ||
---|---|---|---|
위험 카페고리 넘버 | 11-36/37/38-20/21/22-40-34-36/38 | ||
안전지침서 | 16-26-33-36/37/39-36-45-27-36/37 | ||
유엔번호(UN No.) | UN 3089 4.1/PG 2 | ||
WGK 독일 | - | ||
RTECS 번호 | WW5505000 | ||
자연 발화 온도 | 572 °F | ||
TSCA | Yes | ||
위험 등급 | 4.1 | ||
포장분류 | II | ||
HS 번호 | 8103909000 | ||
유해 물질 데이터 | 7440-25-7(Hazardous Substances Data) | ||
IDLA | 2,500 mg Ta/m3 | ||
기존화학 물질 | KE-33006 |
탄탈럼(탄탈) C화학적 특성, 용도, 생산
화학적 성질
Tantalum is a refractory metal in Group V-B of the periodic table. The pure metal is ductile, steel-blue to gray solid or black, odorless powder.물리적 성질
Tantalum has properties similar to niobium and vanadium above it in group 5. It is a veryhard and heavy metal with a bluish color when in its rough state, but if polished, it has a silveryshine. It is ductile, meaning it can be drawn into fine wires, and also malleable, meaningit can be hammered and worked into shapes. Thin strips and wires of tantalum will ignite inair if exposed to a flame.Tantalum’s melting point is 2,996°C, which is almost as high as tungsten and rhenium. Itboiling point is 5,425°C, and its density is 19.3 g/cm3.
Isotopes
There are 49 isotopes of tantalum. Only the isotope Ta-181 is stable andaccounts for 99.988% of the total mass of the element on Earth. Just 0.012% of the element’s mass is contributed by Ta-180, which has a half-life of 1.2×10+15 years and isthus considered naturally stable. The remaining 47 isotopes are all artificially producedin nuclear reactions or particle accelerators and have half-lives ranging from a few microsecondsto few days to about two years.Origin of Name
Tantalum was named after Tantalus, who was the father of Niobe, the queen of Thebes, a city in Greek mythology. (Note: The element tantalum was originally confused with the element nobelium.)출처
Tantalum is the 51st most abundant element found on Earth. Although it is found in afree state, it is usually mixed with other minerals and is obtained by heating tantalum potassiumfluoride or by the electrolysis of melted salts of tantalum. Tantalum is mainly obtainedfrom the following ores and minerals: columbite [(Fe, Mn, Mg)(Nb, Ta)2O6]; tantalite [(Fe,Mn)(Ta, Nb)2O6]; and euxenite [(Y, Ca, Er, La, Ce, U, Th)(Nb, Ta, Ti)2O6]. Tantalum’s oresare mined in South America, Thailand, Malaysia, Africa, Spain, and Canada. The UnitedStates has a few small native deposits but imports most of the tantalum it uses.Since tantalum and niobium are so similar chemically, a solvent process must be employedto separate them from the common ores. They are dissolved in a solvent, resulting in 98% pure niobium oxide being extracted during this part of the process. This is followed by 99.5%pure tantalum oxide being extracted in a second solvent process.
Characteristics
Tantalum is almost as chemically inert at room temperatures (it has the ability to resistchemical attacks, including hydrofluoric acid) as are platinum and gold. It is often substitutedfor the more expensive metal platinum, and its inertness makes it suitable for constructingdental and surgical instruments and artificial joints in the human body.용도
In pen points; analytical weights; apparatus and instruments for chemical, surgical, and dental use instead of platinum, in tantalum capacitors (a type of electrolytic condenser, trademarked "Tantalytic").생산 방법
It was identi?ed that tantalum minerals exists in over 70 differentchemicalcompositions.Thoseofgreatesteconomic importance are tantalite, microlite, and wodginite; however, it is common practice to name any tantalum-containing mineral concentrate as “tantalite”. Tantalum resources are widespread, with the most important known resources being found in Brazil and Australia. In mid-2008, the main mining operations were in Australia, Brazil,Canada,Mozambique,andEthiopiaandinmid-2009, in Brazil, Ethiopia, and China, with additional quantities originating in central Africa, Russia, and Southeast Asia. There is continued interest in exploration of this element in other countries, primarily in Egypt, Canada, Mozambique, and Saudi Arabia.The major world mine producers of tantalum in 2010 were Brazil (180 tons), Mozambique (110 tons), Rwanda (100 tons), and Australia (80 tons). Other countries produced around 170 tons, so the total world production of tantalum was approximately 670 tons. The major producers of tantalum mineral concentrates are Australia, Brazil, and Canada.
정의
A silvery transition element. It is strong, highly resistant to corrosion, and is easily worked. Tantalum is used in turbine blades and cutting tools and in surgical and dental work. Symbol: Ta; m.p. 2996°C; b.p. 5425 ± 100°C; r.d. 16.654 (20°C); p.n. 73; r.a.m. 180.9479.일반 설명
Tantalum dust is a black odorless powder. Mp: 2996°C; bp: approx. 5250°C. Density: 16.65 g cm-3. Insoluble in water. Tantalum oxide dust is a white, microcrystalline powder Mp: 1800°C. Density: 7.6 g cm-3. Insoluble in water. The mixture is listed as a toxic inhalation hazard by OHSA.위험도
The dust and powder of tantalum are explosive. Several tantalum compounds are toxic ifinhaled or ingested, but the metal itself is nonpoisonous.건강위험
Tantalum has a low order of toxicity but has produced transient inflammatory lesions in the lungs of animals. Surgical implantation of tantalum metal products such as plates and screws has not shown any adverse tissue reaction, thus demonstrating its physiological inertness.Safety Profile
An inhalation hazard. Some industrial skin injuries from tantalum have been reported. Systemic industrial poisoning, however, is apparently unknown. Questionable carcinogen with experimental tumorigenic data. The dry powder iptes spontaneously in air. Incompatible with bromine trifluoride, fluorine, lead chromate. See also specific tantalum compounds.Carcinogenicity
Although Oppenheimer et al., using embedded metal foil technique, have elicited two malignant ?brosarcomas in 50 embeddings of tantalum metal in 25Wistar rats aftera latent period of714days, these results remain a controversial issue. Miller et al. have studied tumorigenic transforming potential of tungsten, iron, nickel, and cobalt with tantalum as a comparison on an immortalized nontumorigenic human osteoblast-like cell line. No tumorigenic activity of Ta was reported, but data are not shown.In the recent study, intramuscularly pellets (1mm 2mm cylinders) of weapons-grade WA were implantedtosimulateshrapnelwounds.Ratswereimplanted with 4 (low dose) or 20 pellets (high dose) of WA. Tantalum (20 pellets) and nickel (20 pellets) served as negative and positive controls, respectively. Rats implanted with tantalum (n=46) did not develop tumors.
운송 방법
UN3089 Metal powders, flammable, n.o.s., Hazard Class: 4.1; Labels: 4.1-Flammable solid.비 호환성
A flammable solid; the dry powder can ignite spontaneously in air. Incompatible with lead chromate. A strong reducing agent; incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, bromine trifluoride, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Tantalum metal is attacked by hydrogen fluoride, fused alkalis, fuming sulfuric acid.폐기물 처리
Sanitary landfill if necessary; recover if possible because of economic value. Technology exists for tantalum recovery from spent catalysts, for example.탄탈럼(탄탈) 준비 용품 및 원자재
원자재
준비 용품
탄탈럼(탄탈) 공급 업체
글로벌( 205)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34572 | 58 |
Hebei Zhanyao Biotechnology Co. Ltd | 15369953316 +8615369953316 |
admin@zhanyaobio.com | China | 2136 | 58 |
Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 |
1026@dideu.com | China | 9358 | 58 |
Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 |
sales@zhuoerchem.com | China | 3015 | 58 |
Henan Alfa Chemical Co., Ltd | +8618339805032 |
alfa4@alfachem.cn | China | 12755 | 58 |
Alfa Chemistry | +1-5166625404 |
Info@alfa-chemistry.com | United States | 21317 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503259 +86-19930503259 |
cherry@crovellbio.com | China | 18457 | 58 |
henan kanbei chemical co.,ltd | +undefined-86-1523780-4566 +undefined15237804566 |
henankanbeichemical@163.com | China | 511 | 58 |
탄탈럼(탄탈) 관련 검색:
스트론튬 탄탈럼(탄탈) 탄탈 (V) 염화물 염화 탄탈럼(염화 탄탈) 펜타에톡시탄탈륨 탄탈 오산화물 플루오린화 탄탈럼(플루오르화 탄탈) 칼륨 헵타플루오로탄탈산염
Pyrrolo[2,1-f][1,2,4]triazine, 2,4,5-trichloro-
Dioctylamine
NIOBIUM(V) FLUORIDE
Dextran
TANTALUM (V) BROMIDE
TANTALUM SILICIDE
N-Phenylbenzohydroxamic acid
TANTALUM TELLURIDE
ammonium hexafluorotantalate(5)
CADMIUM TANTALATE(META)