Platinum (Pt)
transition-metalSolid
표준 원자량
195.084 u전자 배치
[Xe] 6s1 4f14 5d9녹는점
1768.4 °C끓는점
3824.85 °C밀도
2.146e+4 kg/m³산화 상태
−3, −2, −1, 0, +1, +2, +3, +4, +5, +6전기 음성도(Pauling)
2.28제1 이온화 에너지
8.95883 eV발견 연도
1735원자 반지름
135 pm상세 정보
Platinum is a dense, silvery-white transition metal in group 10 and a member of the platinum-group elements. It is exceptionally resistant to corrosion and oxidation, yet it can catalyze many reactions at its surface. The metal is chemically noble in bulk but forms well-defined complexes, especially in the +2 and +4 oxidation states. Its combination of durability, catalytic activity, and electrical stability gives it technological importance disproportionate to its crustal abundance.
Platinum is a beautiful silvery-white metal, when pure, and is malleable and ductile. It has a coefficient of expansion almost equal to that of soda-lime-silica glass, and is therefore used to make sealed electrodes in glass systems. The metal does not oxidize in air at any temperature, but is corroded by halogens, cyanides, sulfur, and caustic alkalis.
It is insoluble in hydrochloric and nitric acid, but dissolves when they are mixed as aqua regia, forming chloroplatinic acid.
The name derives from the Spanish platina for "silver". In 1735, the Spanish astronomer Antonio de Ulloa found platinum in Peru, South America. In 1741, the English metallurgist Charles Wood found platinum from Colombia, South America. In 1750, the English physician William Brownrigg prepared purified platinum metal.
Used by the pre-Columbian Indians of South America, platinum wasn't noticed by western scientists until 1735. Platinum can occur free in nature and is sometimes found in deposits of gold-bearing sands, primarily those found in the Ural mountains, Columbia and the western United States. Platinum, in the form of the mineral sperrylite (PtAs2), is also obtained as a byproduct of the nickel mining operation in the Sudbury region of Ontario, Canada. Credit for the modern rediscovery of platinum is usually given to Antonio de Ulloa.
Discovered in South America by Ulloa in 1735 and by Wood in 1741. The metal was used by pre-Columbian Indians.
Pure platinum is a lustrous, silvery-white metal with a high density and a high melting point. It is ductile and malleable, and clean metal surfaces retain their metallic sheen in air because oxide formation is not favored under ordinary conditions.
Platinum is used chiefly as a catalyst, especially in automotive catalytic converters, petroleum refining, chemical synthesis, and fuel-cell electrodes. It is also used in jewelry, laboratory ware, electrical contacts, thermocouples, resistance thermometers, and high-stability electrodes. Some platinum coordination compounds are important anticancer drugs, including cisplatin, cis-[PtCl₂(NH₃)₂], although their medical use is compound-specific rather than a property of the metal itself.
Platinum is a soft, dense, ductile metal that is very resistant to corrosion. It is used to make jewelry, wire, electrical contacts and laboratory vessels. Platinum expands at nearly the same rate as soda-lime-silica glass, so it is used to make sealed electrodes in glass systems. Platinum is used to coat missile nose cones, jet engine fuel nozzles and other devices that must operate reliably for long periods of time at high temperatures. Platinum resistance wires are used in high temperature electric furnaces. Platinum anodes are used in cathodic protection systems to prevent ships, pipelines and steel piers from corroding in salt water.
Platinum is widely used as a catalyst. It will convert methyl alcohol vapors (CH4O) into formaldehyde (CH2O) on contact, glowing red hot in the process. This effect is used to make small hand warmers. Platinum is also used in a device called a catalytic converter, a device found in the exhaust systems of most cars. Catalytic converters combine carbon monoxide (CO) and unburned fuel from a car's exhaust with oxygen from the air, forming carbon dioxide (CO2) and water vapor (H2O). Platinum is also used as a catalyst in the production of sulfuric acid (H2SO4) and in the cracking of petroleum products. Fuel cells, devices that combine hydrogen and oxygen to produce electricity and water, also use platinum as a catalyst.
The metal is extensively used in jewelry, wire, and vessels for laboratory use, and in many valuable instruments including therocouple elements. It is also used for electrical contacts, corrosion-resistant apparatus, and in dentistry.
Platinum-cobalt alloys have magnetic properties. One such alloy made of 76.7% Pt and 23.3% Co, by weight, is an extremely powerful magnet that offers a B-H (max) almost twice that of Alnico V. Platinum resistance wires are used for constructing high-temperature electric furnaces.
The metal is used for coating missile nose cones, jet engine fuel nozzles, etc., which must perform reliably at high temperatures for long periods of time. The metal, like palladium, absorbs large volumes of hydrogen, retaining it at ordinary temperatures but giving it up when heated.
In the finely divided state platinum is an excellent catalyst, having long been used in the contact process for producing sulfuric acid. It is also used as a catalyst in cracking petroleum products. Much interest exists in using platinum as a catalyst in fuel cells and in antipollution devices for automobiles.
Platinum anodes are extensively used in cathodic protection systems for large ships and ocean-going vessels, pipelines, steel piers, etc. Fine platinum wire will glow red hot when placed in the vapor of methyl alcohol. It acts here as a catalyst, converting the alcohol to formaldehyde. The phenomenon has been used commercially to produce cigarette lighters and hand warmers. Hydrogen and oxygen explode in the presence of platinum.
Isotopes in Earth/Planetary Science
Astrophysicists have confirmed an anomaly in the isotopic composition of platinum in the chemically peculiar HgMn star χ Lupi, where the platinum isotopic composition was shown to be a mixture of 196Pt and 198Pt (Fig. IUPAC.78.1) [526] G. Kalus, S. Johansson, G. M. Wahlgren, D. S. Leckrone, A. P. Thorne, J. C. Brandt. Astrophys. J.494, 792 (1998)..
Isotopes in Geochronology
The decay of 190Pt (with a half-life of 4.9×1011 years) to 186Os over time has been used for dating rocks and iron meteorites [527] J. A. Coggona, G. M. Nowella, D. G. Pearsona, T. Oberthürb, J.-P. Lorandc, F. Melcherb, S. W. Parmand. Chem. Geol.302-303, 48 (2012)..
Isotopes in Medicine
195mPt (with a half-life of 4 days) is used for pharmacokinetic studies of platinum-based anti-tumor agents in cancer diagnosis and cancer therapy [188] S. J. Adelstein, F. J. Manning. Isotopes for Medicine and the Life Sciences, pp. 20–25, National Academy Press, Washington DC (1995).. The m in the superscript of 195mPt indicates a metastable state of the isotope. 195mPt can be produced from the stable isotopes 192Os or 195Pt via the 192Os (α, n) 195mPt reaction and the 195Pt (n, n′) 195mPt reaction, respectively.
Platinum chemistry is dominated by square-planar Pt(II) and octahedral Pt(IV) complexes, with lower and higher formal states known in specialized compounds. Chloroplatinic acid, H₂PtCl₆, and hexachloroplatinate salts are common precursors for catalysts and coordination chemistry. Platinum(II) chloride, PtCl₂, and platinum(IV) chloride, PtCl₄, illustrate its stable chlorides. Platinum forms many ammine, phosphine, carbonyl, and organometallic complexes; its ability to bind and activate H₂, CO, alkenes, and other small molecules underlies much of its catalytic value.
See more information at the Platinum compound page.
Massive platinum metal is generally of low chemical toxicity and is poorly reactive in the body, but finely divided platinum can be a fire or explosion hazard in some atmospheres and may catalyze unwanted reactions. Soluble platinum salts and some coordination compounds can cause allergic sensitization, asthma, skin reactions, or systemic toxicity. Industrial exposure risks are greatest during refining, catalyst manufacture, and handling of soluble or dusty forms.
Platinum occurs naturally at very low concentrations, mainly in ultramafic and mafic ore systems and in placer deposits with other platinum-group elements. In the environment it is mostly present as resistant metallic particles, sulfides, alloys, or strongly bound complexes. Road dust can contain platinum released from catalytic converters, but its mobility and bioavailability depend strongly on particle size, oxidation state, chloride content, and local chemistry.
Platinum is produced mostly as a by-product or co-product from ores rich in platinum-group elements, nickel, and copper. Mining and refining require concentration of very low-grade material followed by complex separation of closely related metals. Supply is geographically concentrated and sensitive to ore quality, energy costs, labor conditions, and refining capacity. Demand is led by emission-control catalysts, jewelry, chemical catalysts, electronics, and electrochemical technologies. Recycling from spent automotive catalysts and industrial catalysts is an important secondary source because the metal is valuable and durable.
Platinum occurs natively, accompanied by small quantities of iridium, osmium, palladium, ruthenium, and rhodium, all belonging to the same group of metals. These are found in the alluvial deposits of the Ural mountains, of Columbia, and of certain western American states. Sperrylite, occurring with the nickel-bearing deposits of Sudbury, Ontario, is the source of a considerable amount of metal.
The large production of nickel makes up for the fact that is only one part of the platinum metals in two million parts of ore.
Platinum is a rare heavy element in the cosmos, produced mainly by rapid neutron-capture processes in extreme astrophysical events. It is present in meteorites and planetary materials at trace levels, with siderophile behavior that caused much of Earth’s original inventory to partition into the core. Crustal platinum is therefore scarce and concentrated only by later geological processes.
- Platinum resists attack by most single mineral acids but dissolves in aqua regia.
- The international prototype metre and kilogram were made from a platinum-iridium alloy.
- Finely divided platinum can absorb and activate hydrogen at its surface.
- Native platinum commonly contains iron and other platinum-group metals rather than being perfectly pure.
- Platinum resistance thermometers are used because its electrical resistance is stable and reproducible.
이미지
특성
물리적 특성
- 원자 반지름(경험값)
- 135 pm 모든 원소의 원자 반지름(경험값) 비교 →
- 공유 결합 반지름
- 136 pm 모든 원소의 공유 결합 반지름 비교 →
- 반데르발스 반지름
- 209 pm 모든 원소의 반데르발스 반지름 비교 →
- 금속 반지름
- 130 pm 모든 원소의 금속 반지름 비교 →
- 밀도
- 2.146 × 104 kg/m³ 모든 원소의 밀도 비교 →
- 몰 부피
- 0.0091 L/mol
- STP에서의 상
- 고체 모든 원소의 STP에서의 상 비교 →
- 녹는점
- 1768.4 °C 모든 원소의 녹는점 비교 →
- 끓는점
- 3824.85 °C 모든 원소의 끓는점 비교 →
- 열전도율
- 71.6 W/(m·K) 모든 원소의 열전도율 비교 →
- 비열
- 0.133 J/(g·K) 모든 원소의 비열 비교 →
- 몰 열용량
- 25.86 J/(mol·K) 모든 원소의 몰 열용량 비교 →
- 결정 구조
- 면심 입방 모든 원소의 결정 구조 비교 →
화학적 특성
- 전기 음성도(Pauling)
- 2.28 모든 원소의 전기 음성도(Pauling) 비교 →
- 전기 음성도(Allen)
- 1.72
- 전자 친화도
- 2.1228 eV
- 제1 이온화 에너지
- 8.95883 eV 모든 원소의 제1 이온화 에너지 비교 →
- 제2 이온화 에너지
- 18.560064 eV 모든 원소의 제2 이온화 에너지 비교 →
- 제3 이온화 에너지
- 29.0001 eV 모든 원소의 제3 이온화 에너지 비교 →
- 제4 이온화 에너지
- 43.000148 eV 모든 원소의 제4 이온화 에너지 비교 →
- 제5 이온화 에너지
- 56.000193 eV 모든 원소의 제5 이온화 에너지 비교 →
- 산화 상태
- −3, −2, −1, 0, +1, +2, +3, +4, +5, +6 모든 원소의 산화 상태 비교 →
- 원자가 전자
- 10 모든 원소의 원자가 전자 비교 →
- 전자 배치
- [Xe] 6s1 4f14 5d9
열역학적 특성
- 융해열
- 0.20490232 eV 모든 원소의 융해열 비교 →
- 기화열
- 4.860859 eV 모든 원소의 기화열 비교 →
- 승화열
- 5.845468 eV
- 원자화열
- 5.845468 eV
- 원자화 엔탈피
- 5.863088 eV
핵 특성
- 양성자 수
- 78 모든 원소의 양성자 수 비교 →
- 중성자 수
- 116 모든 원소의 중성자 수 비교 →
- 알려진 동위원소 수
- 44 모든 원소의 알려진 동위원소 수 비교 →
- 안정 동위원소 수
- 3 모든 원소의 안정 동위원소 수 비교 →
- 가장 안정한 동위원소
- Pt-194
- 발견 연도
- 1735
존재비
- 존재비(지각)
- 0.005 mg/kg 모든 원소의 존재비(지각) 비교 →
결정 구조
- 격자 상수 a
- 392 pm
전자 구조
- 전자껍질별 전자 수
- 2, 8, 18, 32, 17, 1 모든 원소의 전자껍질별 전자 수 비교 →
식별자
- CAS 등록 번호
- 7440-06-4 모든 원소의 CAS 등록 번호 비교 →
- 항 기호
- 3D3
- InChI
- InChI=1S/Pt
- InChI 키
- BASFCYQUMIYNBI-UHFFFAOYSA-N
전자 배치 측정값
Pt: 4f¹⁴ 5d⁹ 6s¹[Xe] 4f¹⁴ 5d⁹ 6s¹1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d⁹ 6s¹원자 모형
동위원소에 따라 중성자 수, 질량, 안정성은 달라지지만, 중성 원자의 전자 배치는 달라지지 않습니다.
개략적인 원자 모형이며 실제 비율과 다릅니다.
원자 지문
방출 / 흡수 스펙트럼
동위원소 분포
| 질량수 | 원자 질량(u) | 천연 존재비 | 반감기 |
|---|---|---|---|
| 194 안정 | 193.9626809 ± 0.000001 | 32.8600% | 안정 |
| 196 안정 | 195.96495209 ± 0.00000099 | 25.2100% | 안정 |
| 198 안정 | 197.9678949 ± 0.0000023 | 7.3560% | 안정 |
상 / 상태
이유: 녹는점(1768.4 °C)보다 1743.4 °C 낮음
개략도이며 실제 비율과 다름
상전이점
전이 에너지
녹는점에서 1 mol을 녹이는 데 필요한 에너지
끓는점에서 1 mol을 기화시키는 데 필요한 에너지
승화점에서 1 mol을 승화시키는 데 필요한 에너지
밀도
표준 조건에서
표준 조건에서
원자 스펙트럼
전체 78개 중 10개를 표시합니다. 이온 전하순으로 정렬되었습니다(오름차순).
보유 스펙트럼선 데이터 ?
| 이온 | 전하 | 총 스펙트럼선 수 | 전이 확률 | 준위 표기 |
|---|---|---|---|---|
| Pt I | 0 | 995 | 166 | 995 |
| Pt II | +1 | 2268 | 183 | 2268 |
| Pt IV | +3 | 1531 | 1531 | 1531 |
| Pt V | +4 | 1729 | 1729 | 1729 |
| Pt VI | +5 | 1467 | 1467 | 1467 |
| Pt VII | +6 | 786 | 786 | 786 |
| Pt VIII | +7 | 360 | 360 | 360 |
보유 에너지 준위 데이터 ?
| 이온 | 전하 | 준위 |
|---|---|---|
| Pt I | 0 | 202 |
| Pt II | +1 | 282 |
| Pt III | +2 | 2 |
| Pt IV | +3 | 238 |
| Pt V | +4 | 259 |
| Pt VI | +5 | 251 |
| Pt VII | +6 | 178 |
| Pt VIII | +7 | 80 |
| Pt IX | +8 | 2 |
| Pt X | +9 | 2 |
이온 반지름
| 전하 | 배위 | 스핀 | 반지름 |
|---|---|---|---|
| +2 | 4 | 해당 없음 | 60 pm |
| +2 | 6 | 해당 없음 | 80 pm |
| +4 | 6 | 해당 없음 | 62.5 pm |
| +5 | 6 | 해당 없음 | 56.99999999999999 pm |
화합물
동위원소 (3)
| 질량수 | 원자 질량(u) | 천연 존재비 | 반감기 | 붕괴 방식 | |
|---|---|---|---|---|---|
| 194 안정 | 193.9626809 ± 0.000001 | 32.8600% ± 0.4000% | 안정 | stable | |
| 196 안정 | 195.96495209 ± 0.00000099 | 25.2100% ± 0.3400% | 안정 | stable | |
| 198 안정 | 197.9678949 ± 0.0000023 | 7.3560% ± 0.1300% | 안정 | stable |
스펙트럼선
전체 264개 중 50개를 표시합니다. 기본적으로 세기가 측정된 스펙트럼선만 표시됩니다.
| 파장(nm) | 세기 | 이온화 단계 | 유형 | 전이 | 정확도 | 출처 | |
|---|---|---|---|---|---|---|---|
| 381.86875 nm | 8300 | Pt I | emission | 5d8.6s2 3F → 5d8.6s.(4F).6p a 5G* | 측정값 | NIST | |
| 676.00069 nm | 6500 | Pt I | emission | 5d9.6p 3F* → 5d9.7s 3D | 측정값 | NIST | |
| 530.10143 nm | 3900 | Pt I | emission | 5d8.6s.(4F).6p 5G* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 396.6357 nm | 3400 | Pt I | emission | 5d8.6s2 3F → 5d8.6s.(4F).6p a 5D* | 측정값 | NIST | |
| 416.45502 nm | 3300 | Pt I | emission | 5d8.6s2 3F → 5d9.6p 3F* | 측정값 | NIST | |
| 411.86745 nm | 3000 | Pt I | emission | 5d9.6s b 1D → 5d9.6p 3D* | 측정값 | NIST | |
| 652.34376 nm | 3000 | Pt I | emission | 5d9.6p b 3P* → 5d9.7s 1D | 측정값 | NIST | |
| 444.25477 nm | 2400 | Pt I | emission | 5d8.6s2 3F → 5d9.6p a 3P* | 측정값 | NIST | |
| 432.70524 nm | 2300 | Pt I | emission | 5d8.6s.(4F).6p a 5F* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 709.475 nm | 2300 | Pt I | emission | 5d8.6s.(4F).6p 3G* → 5d8.(3F<4>).6s.7s.(1S<0>) (4,0) | 측정값 | NIST | |
| 711.37244 nm | 2300 | Pt I | emission | 5d8.6s2 3P → 5d9.6p a 3P* | 측정값 | NIST | |
| 671.03998 nm | 2200 | Pt I | emission | 5d9.6p 3D* → 5d9.7s 1D | 측정값 | NIST | |
| 522.76459 nm | 2100 | Pt I | emission | 5d9.6s b 1D → 5d9.6p a 3P* | 측정값 | NIST | |
| 505.94815 nm | 1900 | Pt I | emission | 5d9.6p a 3P* → 5d9.7s 3D | 측정값 | NIST | |
| 547.57631 nm | 1900 | Pt I | emission | 5d9.6p 3F* → 5d9.7s 3D | 측정값 | NIST | |
| 584.01269 nm | 1800 | Pt I | emission | 5d8.6s2 3F → 5d9.6p a 3P* | 측정값 | NIST | |
| 419.24241 nm | 1700 | Pt I | emission | 5d9.6s b 1D → 5d9.6p b 3P* | 측정값 | NIST | |
| 547.84793 nm | 1500 | Pt I | emission | 5d8.6s.(4F).6p b 5F* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 684.25984 nm | 1500 | Pt I | emission | 5d9.6p 3D* → 5d9.7s 3D | 측정값 | NIST | |
| 449.8748 nm | 1100 | Pt I | emission | 5d9.6p 3F* → 5d9.6d 3G | 측정값 | NIST | |
| 539.07754 nm | 1100 | Pt I | emission | 5d9.6p 3F* → 5d9.7s 1D | 측정값 | NIST | |
| 632.6577 nm | 1100 | Pt I | emission | 5d8.6s2 1G → 5d9.6p 3D* | 측정값 | NIST | |
| 584.48054 nm | 1000 | Pt I | emission | 5d8.6s.(4F).6p b 5F* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 536.89866 nm | 960 | Pt I | emission | 5d8.6s2 3F → 5d9.6p 3F* | 측정값 | NIST | |
| 631.83662 nm | 930 | Pt I | emission | 5d9.6p 3P* → 5d9.7s 1D | 측정값 | NIST | |
| 602.60247 nm | 860 | Pt I | emission | 5d8.6s.(4F).6p 5F* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 695.7507 nm | 800 | Pt I | emission | 5d8.6s.(2F).6p a 3F* → 5d8.(3F<4>).6s.6d b (4,?) | 측정값 | NIST | |
| 455.24119 nm | 730 | Pt I | emission | 5d8.6s.(4F).6p a 5F* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 428.80508 nm | 680 | Pt I | emission | 5d8.6s2 3F → 5d8.6s.(2D).6p a 3F* | 측정값 | NIST | |
| 713.16333 nm | 650 | Pt I | emission | 5d8.6s.(2F).6p b 3D* → 5d9.7s 3D | 측정값 | NIST | |
| 689.67056 nm | 590 | Pt I | emission | 5d8.6s.(2F).6p a 3F* → 5d8.(3F<3>).6s.7s.(3S<1>) (3,1) | 측정값 | NIST | |
| 409.22515 nm | 580 | Pt I | emission | 5d8.6s.(4F).6p a 5D* → 5d9.6d a 3G | 측정값 | NIST | |
| 707.8062 nm | 580 | Pt I | emission | 5d8.6s.(4F).6p b 5D* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 401.37143 nm | 570 | Pt II | emission | 5d8.6p 76610* → 5d8.(3P).7s (2,1/2) | 측정값 | NIST | |
| 628.34779 nm | 570 | Pt I | emission | 5d8.6s.(2F).6p a 3D* → 5d9.7s 3D | 측정값 | NIST | |
| 683.80564 nm | 560 | Pt I | emission | 5d9.6p 3F* → 5d8.(3F<4>).6s.7s.(3S<1>) (4,1) | 측정값 | NIST | |
| 452.29919 nm | 550 | Pt I | emission | 5d9.6p 3D* → 5d9.6d 1F | 측정값 | NIST | |
| 664.83039 nm | 550 | Pt I | emission | 5d9.6p b 3P* → 5d9.7s 3D | 측정값 | NIST | |
| 703.00606 nm | 540 | Pt I | emission | 5d8.6s.(4P).6p a 5D* → 5d9.7s 3D | 측정값 | NIST | |
| 448.46871 nm | 520 | Pt I | emission | 5d9.6p 3F* → 5d9.6d 3F | 측정값 | NIST | |
| 748.60309 nm | 520 | Pt I | emission | 5d8.6s2 1G → 5d8.6s.(4F).6p a 5D* | 측정값 | NIST | |
| 576.3566 nm | 510 | Pt I | emission | 5d8.6s.(4F).6p a 5D* → 5d9.7s 1D | 측정값 | NIST | |
| 712.5028 nm | 500 | Pt I | emission | 5d7.(4F).6s2.6p a 3G* → 5d8.(3F<4>).6s.6d b (4,?) | 측정값 | NIST | |
| 427.3898 nm | 490 | Pt I | emission | 5d8.6s.(2F).6p a 3D* → 5d9.6d b 3G | 측정값 | NIST | |
| 439.18207 nm | 490 | Pt I | emission | 5d8.6s2 1G → 5d8.6s.(2F).6p a 3D* | 측정값 | NIST | |
| 392.53348 nm | 480 | Pt I | emission | 5d8.6s2 3F → 5d8.6s.(4F).6p 5G* | 측정값 | NIST | |
| 712.2889 nm | 480 | Pt I | emission | 5d8.6s.(4P).6p 5D* → 5d9.7d 3P | 측정값 | NIST | |
| 386.84222 nm | 470 | Pt I | emission | 5d8.6s.(4F).6p b 5F* → 5d8.(3F<4>).6s.6d b (4,?) | 측정값 | NIST | |
| 387.57161 nm | 470 | Pt I | emission | 5d8.6s.(4F).6p b 5F* → 5d8.(3F<4>).6s.6d b (4,?) | 측정값 | NIST | |
| 420.12097 nm | 470 | Pt I | emission | 5d9.6p 3P* → 5d9.7s 3D | 측정값 | NIST |
확장 특성
공유 결합 반지름(확장)
- 공유 결합 반지름(Pyykkö)
- 123 pm
- 공유 결합 반지름(Pyykkö, 이중 결합)
- 112 pm
- 공유 결합 반지름(Pyykkö, 삼중 결합)
- 110 pm
반데르발스 반지름
- Batsanov
- 205 pm
- Alvarez
- 229 pm
- UFF
- 275.4 pm
- MM3
- 239 pm
원자 및 금속 반지름
- 원자 반지름(Rahm)
- 230 pm
- 금속 반지름(C12)
- 139 pm
번호 척도
- Mendeleev
- 69
- Pettifor
- 68
- Glawe
- 64
전기 음성도 척도
- Ghosh
- 0
- Miedema
- 6
- Gunnarsson–Lundqvist
- 4
- Robles–Bartolotti
- 3
분극률 및 분산
- 쌍극자 분극률
- 48 a.u.
- 쌍극자 분극률(불확도)
- 4 a.u.
- C₆ (Gould–Bučko)
- 470 Ha·Bohr6
미데마 매개변수
- 미데마 몰 부피
- 9.1 cm3/mol
- 미데마 전자 밀도
- 6
공급 위험 및 경제성
- 생산 집중도
- 60
- 상대적 공급 위험
- 8
- 매장량 분포
- 95
- 정치적 안정성(최대 생산국)
- 44
- 정치적 안정성(최대 매장국)
- 44
상전이 및 동소체
| 녹는점 | 2041.35 K |
| 끓는점 | 4098.15 K |
산화 상태 분류
심화 참고 데이터
차폐 상수 (14)
| n | 오비탈 | σ |
|---|---|---|
| 1 | s | 1.506 |
| 2 | p | 4.4746 |
| 2 | s | 20.3702 |
| 3 | d | 13.5027 |
| 3 | p | 22.1139 |
| 3 | s | 23.0157 |
| 4 | d | 37.37 |
| 4 | f | 38.494 |
| 4 | p | 35.2696 |
| 4 | s | 34.3612 |
결정 반지름 상세 정보 (4)
| 전하 | CN | 스핀 | rcrystal (pm) | 기원 |
|---|---|---|---|---|
| 2 | IVSQ | 74 | ||
| 2 | VI | 94 | Ahrens (1952) ionic radius, | |
| 4 | VI | 76.5 | from r^3 vs V plots, | |
| 5 | VI | 71 | estimated, from r^3 vs V plots, |
동위원소 붕괴 방식 (67)
| 동위원소 | 모드 | 세기 |
|---|---|---|
| 165 | A | 100% |
| 166 | A | 100% |
| 167 | A | 100% |
| 168 | A | 100% |
| 168 | B+ | — |
| 169 | A | 100% |
| 169 | B+ | — |
| 170 | A | 100% |
| 170 | B+ | — |
| 171 | A | 86% |
X선 산란 인자 (945)
| 에너지 (eV) | f₁ | f₂ |
|---|---|---|
| 0.1 | -0.0027 | 0.00979 |
| 0.13 | -0.0033 | 0.01359 |
| 0.15 | -0.0035 | 0.01538 |
| 0.17 | -0.0037 | 0.01722 |
| 0.2 | -0.0043 | 0.02103 |
| 0.22 | -0.0045 | 0.02279 |
| 0.25 | -0.0051 | 0.02656 |
| 0.28 | -0.0056 | 0.0304 |
| 0.3 | -0.0058 | 0.03194 |
| 0.32 | -0.0058 | 0.03342 |
추가 데이터
Estimated Crustal Abundance
The estimated element abundance in the earth's crust.
5×10-3 milligrams per kilogram
참고 문헌 (1)
- [5] Platinum https://education.jlab.org/itselemental/ele078.html
Estimated Oceanic Abundance
The estimated element abundance in the earth's oceans.
Not Applicable
참고 문헌 (1)
- [5] Platinum https://education.jlab.org/itselemental/ele078.html
Sources
Sources of this element.
Platinum occurs natively, accompanied by small quantities of iridium, osmium, palladium, ruthenium, and rhodium, all belonging to the same group of metals. These are found in the alluvial deposits of the Ural mountains, of Columbia, and of certain western American states. Sperrylite, occurring with the nickel-bearing deposits of Sudbury, Ontario, is the source of a considerable amount of metal.
The large production of nickel makes up for the fact that is only one part of the platinum metals in two million parts of ore.
참고 문헌 (1)
- [6] Platinum https://periodic.lanl.gov/78.shtml
참고 문헌
(9)
Data deposited in or computed by PubChem
The half-life and atomic mass data was provided by the Atomic Mass Data Center at the International Atomic Energy Agency.
Element data are cited from the Atomic weights of the elements (an IUPAC Technical Report). The IUPAC periodic table of elements can be found at https://iupac.org/what-we-do/periodic-table-of-elements/. Additional information can be found within IUPAC publication doi:10.1515/pac-2015-0703 Copyright © 2020 International Union of Pure and Applied Chemistry.
The information are cited from Pure Appl. Chem. 2018; 90(12): 1833-2092, https://doi.org/10.1515/pac-2015-0703.
Thomas Jefferson National Accelerator Facility (Jefferson Lab) is one of 17 national laboratories funded by the U.S. Department of Energy. The lab's primary mission is to conduct basic research of the atom's nucleus using the lab's unique particle accelerator, known as the Continuous Electron Beam Accelerator Facility (CEBAF). For more information visit https://www.jlab.org/
The periodic table at the LANL (Los Alamos National Laboratory) contains basic element information together with the history, source, properties, use, handling and more. The provenance data may be found from the link under the source name.
The periodic table contains NIST's critically-evaluated data on atomic properties of the elements. The provenance data that include data for atomic spectroscopy, X-ray and gamma ray, radiation dosimetry, nuclear physics, and condensed matter physics may be found from the link under the source name. Ref: https://www.nist.gov/pml/atomic-spectra-database
This section provides all form of data related to element Platinum.
The element property data was retrieved from publications.