インジウム In 　　

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a rare soft silvery metallic element; occurs in small quantities in sphalerite (同)In, atomic number 49

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インジウム(金属元素;化学記号はIn)
indiumの化学記号

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/07/12 23:38:13」(JST)

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Not to be confused with Iridium.

Indium is a chemical element with symbol In and atomic number 49. This rare, very soft, malleable and easily fusible post-transition metal is chemically similar to gallium and thallium, and shows intermediate properties between these two. Indium was discovered in 1863 and named for the indigo blue line in its spectrum that was the first indication of its existence in zinc ores, as a new and unknown element. The metal was first isolated in the following year. Zinc ores continue to be the primary source of indium, where it is found in compound form. Very rarely the element can be found as grains of native (free) metal, but these are not of commercial importance.

Indium's current primary application is to form transparent electrodes from indium tin oxide (ITO) in liquid crystal displays and touchscreens, and this use largely determines its global mining production. It is widely used in thin-films to form lubricated layers (during World War II it was widely used to coat bearings in high-performance aircraft). It is also used for making particularly low melting point alloys, and is a component in some lead-free solders.

Indium is not known to be used by any organism. In a similar way to aluminium salts, indium(III) ions can be toxic to the kidney when given by injection, but oral indium compounds do not have the chronic toxicity of salts of heavy metals, probably due to poor absorption in basic conditions. Radioactive indium-111 (in very small amounts on a chemical basis) is used in nuclear medicine tests, as a radiotracer to follow the movement of labeled proteins and white blood cells in the body.

Characteristics[edit]

Physical[edit]

Indium wetting the glass surface of a test tube

Indium is a very soft, silvery-white, relatively rare poor metal with a bright luster. Like tin, when it is bent indium emits a high-pitched "cry".^[2] Like gallium, indium is able to wet glass. Like both, indium has a low melting point, 156.60 °C (313.88 °F); higher than its lighter homologue, gallium, but lower than its heavier homologue, thallium, and lower than tin.^[3] Its boiling point is, however, moderate, being 2072 °C (3762 °F), which is higher than that of thallium, but lower than that of gallium, showing opposition to melting points trend. The density of indium, 7.31 g·cm⁻³, is also higher than that of gallium, but lower than that of thallium.^[3]

An indium atom has 49 electrons, having an electronic configuration of [Kr]4d¹⁰5s²5p¹. In its compounds, indium most commonly loses its three outermost electrons, becoming indium(III) ions, In³⁺, but in some cases the pair of 5s-electrons can stay within the atom, indium thus oxidized only to indium(I), In⁺. This happens due to inert pair effect, which occurs because of stabilization of 5s-orbital due to relativistic effects, which are stronger closer to the bottom of the periodic table. Thallium shows an even stronger effect, making oxidation to thallium(I) more likely than to thallium(III), making +1 the more likely oxidation state.^[4]

A number of standard electrode potentials, depending on the reaction under study,^[5] are reported for indium:

−0.40	In²⁺ + e⁻	↔ In⁺
−0.49	In³⁺ + e⁻	↔ In²⁺
−0.443	In³⁺ + 2 e⁻	↔ In⁺
−0.3382	In³⁺ + 3 e⁻	↔ In
−0.14	In⁺ + e⁻	↔ In

Chemical[edit]

Indium is a post-transition metal and chemically, is the intermediate element between its group 13 neighbors gallium and thallium. It shows two main oxidation states, which are +1 and +3, with latter being more stable, whereas the only common oxidation state of gallium is +3 and thallium shows +1 more likely than +3, with thallium(III) being a moderately strong oxidizing agent, while indium(III) is stable and indium(I) is a powerful reducing agent.^[6]

Indium does not react with water, but it is oxidized by stronger oxidizing agents, such as halogens or oxalic acid, to give indium(III) compounds. It does not react with boron, silicon or carbon, and the corresponding boride, silicide or carbide are not known. Similarly, reaction between indium and hydrogen has not been observed, but both indium(I) and indium(III) hydrides are known.^[7]

Indium(III) oxide is formed at high temperatures during reaction between indium and oxygen, with blue flame. It is amphoteric, i. e. it can react with both acids and bases. Its reaction with water results in insoluble indium(III) hydroxide, which is also amphoteric, reacting with alkalies to give indates(III) and with acids to give indium(III) salts:

In(OH)₃ + 2 NaOH → 2 Na[InO₂] + H₂O

In(OH)₃ + 3 HCl → InCl₃ + 3 H₂O

The hydrolysis of sodium indate(III) gives weak indic acid, HInO₂. Out of common indium(III) salts, chloride, sulfate and nitrate are soluble. In water solutions, In³⁺ and [InO₂]^- ions are hydrolyzed to give InOH²⁺ and HInO₂ due to generally amphoteric character of indium(III) ions. Indium(III) compounds are not well-soluble, similarly to thallium(III) compounds; however, indium(III) salts of strong acids, such as chloride, sulfate and nitrate are soluble, hydrolyzing in water solutions. The In³⁺ ion is colorless in solution because of the absence of unpaired electrons in the d- and f-electron shells.^[6]

Indium(I) compounds are not as common as indium(III) ones; only chloride, bromide, iodide, sulfide and cyclopentadienyl are well-characterized. Indium(I) sulfide is the product of reaction between indium and sulfur or indium and hydrogen sulfide, and can be received at 700—1000 °C. Indium(I) oxide black powder is received at 850 °C during reaction between indium and carbon dioxide or during decomposition of indium(III) oxide at 1200 °C. Cyclopentadienylindium(I), which was the first organoindium(I) compound reported,^[8] is polymer consisting of zigzag chains of alternating indium atoms and cyclopentadienyl complexes.

Less frequently, indium shows intermediate oxidation state +2, which lies between the common ones, most notably in halides, In₂X₄ and [In₂X₆]^2-.^[9] Several other compounds are known to combine indium(I) and indium(III), such as In^I₆(In^IIICl₆)Cl₃,^[10] In^I₅(In^IIIBr₄)₂(In^IIIBr₆),^[11] In^IIn^IIIBr₄.^[9]

Isotopes[edit]

Main article: Isotopes of indium

Indium occurs naturally on Earth only in two primordial nuclides, indium-113 and indium-115. Out of this two, indium-115 makes up 95.7% of all indium but it is radioactive, decaying to tin-115 via beta decay with half-life of 4.41×10¹⁴ years, four orders of magnitude larger than the age of the universe and nearly 50,000 times longer than that of natural thorium.^[12] This situation is uncommon among stable chemical elements; only indium, tellurium, and rhenium have been shown to have most-abundant isotopes that are radioactive. The less common natural isotope of indium, indium-113, is stable.

Indium has 39 known isotopes, ranging in mass between 97 and 135. Only one of them is stable and one has half-life exceeding 10¹⁴ years; the most stable other indium isotope is indium-111, which has half-life of approximately 2.8 days. All other isotopes have half-lives shorter than 5 hours. Indium also has 47 meta states, out of which indium-114m1 is the most stable, being more stable than ground state of any indium isotope, except for the primordial ones.

Creation and occurrence[edit]

History[edit]

In 1863, the German chemists Ferdinand Reich and Hieronymous Theodor Richter were testing ores from the mines around Freiberg, Saxony. They dissolved the minerals pyrite, arsenopyrite, galena and sphalerite in hydrochloric acid and distilled raw zinc chloride. As it was known that ores from that region sometimes contain thallium they searched for the green emission lines with spectroscopy. The green lines were absent but a blue line was present in the spectrum. As no element was known with a bright blue emission they concluded that a new element was present in the minerals. They named the element with the blue spectral line indium, from the indigo color seen in its spectrum.^[20]^[21] Richter went on to isolate the metal in 1864.^[22] At the World Fair 1867 an ingot of 0.5 kg (1.1 lb) was presented.^[23]

In 1924, indium was found to have a valuable ability to stabilize non-ferrous metals, which was the first significant use for the element.^[24] It took until 1936 for the U.S. Bureau of Mines to list indium as a commodity, and even in early the 1950s only very limited applications for indium were known, the most important of which was making light-emitting diodes and coating bearings for aircraft engines during World War II. The start of production of indium-containing semiconductors started in 1952. The development and widespread use of indium-containing nuclear control rods increased demand during the 1970s, and the use of indium tin oxide in liquid crystal displays increased and became the major application by 1992.^[25]^[26]^[27]^[28]^[29]

Production[edit]

The lack of indium mineral deposits and the fact that indium is enriched in sulfidic lead, tin, copper, iron and predominately in zinc deposits, makes zinc production the main source for indium. The indium is leached from slag and dust of zinc production. Further purification is done by electrolysis. The exact process varies with the exact composition of the slag and dust.^[2]^[23]

Indium is produced mainly from residues generated during zinc ore processing but is also found in iron, lead, and copper ores.^[2] China is a leading producer of indium (390 tonnes in 2012), followed by Canada, Japan and South Korea with 70 tonnes each.^[30] The Teck Cominco refinery in Trail, British Columbia, is a large single-source indium producer, with an output of 32.5 tonnes in 2005, 41.8 tonnes in 2004 and 36.1 tonnes in 2003. South American Silver Corporation's Malku Khota property in Bolivia is a large resource of indium with an indicated resource of 1,481 tonnes and inferred resource of 935 tonnes.^[31] Adex Mining Inc.’s Mount Pleasant Mine in New Brunswick, Canada, holds some of the world’s total known indium resources.^[32]

The amount of indium consumed is largely a function of worldwide LCD production. Worldwide production is currently 475 tonnes per year from mining and a further 650 tonnes per year from recycling.^[17] Demand has risen rapidly in recent years with the popularity of LCD computer monitors and television sets, which now account for 50% of indium consumption.^[33] Increased manufacturing efficiency and recycling (especially in Japan) maintain a balance between demand and supply. According to the UNEP, indium's end-of-life recycling rate is less than 1%.^[34] Demand increased as the metal is used in LCDs and televisions, and supply decreased when a number of Chinese mining concerns stopped extracting indium from their zinc tailings. In 2002, the price was US$94 per kilogram. The recent changes in demand and supply have resulted in high and fluctuating prices of indium, which from 2006 to 2009 ranged from US$382/kg to US$918/kg.

It has been estimated that there is less than 20 years left of indium supplies, based on current rates of extraction, demonstrating the need for additional recycling.^[35]

Applications[edit]

A magnified image of an LCD screen showing RGB pixels. Individual transistors are seen as white dots in the bottom part.

The first large-scale application for indium was as a coating for bearings in high-performance aircraft engines during World War II. Afterward, production gradually increased as new uses were found in fusible alloys, solders, and electronics. In the 1950s, tiny beads of it were used for the emitters and collectors of PNP alloy junction transistors. In the middle and late 1980s, the development of indium phosphide semiconductors and indium tin oxide thin films for liquid crystal displays (LCD) aroused much interest. By 1992, the thin-film application had become the largest end use.^[36]^[37]

Electronics[edit]

Indium oxide (In₂O₃) and indium tin oxide (ITO) are used as a transparent conductive coating applied to glass substrates in the making of electroluminescent panels.^[38]
Some indium compounds such as indium antimonide, indium phosphide,^[39] and indium nitride^[40] are semiconductors with useful properties.
Indium is used in the synthesis of the semiconductor copper indium gallium selenide (CIGS), which is used for the manufacture of thin film solar cells.^[41]
Used in light-emitting diodes (LEDs) and laser diodes based on compound semiconductors such as InGaN, InGaP that are fabricated by Metalorganic Vapor Phase Epitaxy (MOVPE) technology.^[42]
Ultrapure metalorganics of indium include high purity trimethylindium (TMI), which is used as a precursor in III-V compound semiconductors, while it is also used as the semiconductor dopant in II-VI compound semiconductors.^[43]
One of many substitutes for mercury in alkaline batteries to prevent the zinc from corroding and releasing hydrogen gas.^[44]

Metal and alloys[edit]

Ductile indium wire

Very small amounts used in aluminium alloy sacrificial anodes (for salt water applications) to prevent passivation of the aluminium.
To bond gold electrical test leads to superconductors, indium is used as a conducting adhesive and applied under a microscope with precision tweezers.^[45]
In the form of a wire it is used as a vacuum seal and a thermal conductor in cryogenics and ultra-high vacuum applications. For example, in manufacturing gaskets which deform to fill gaps.^[46]
Used as a calibration material for Differential scanning calorimetry.^[47]
It is an ingredient in the gallium-indium-tin alloy Galinstan, which is liquid at room temperature while not being toxic like mercury.^[48]

Other uses[edit]

Indium tin oxide is used as a light filter in low-pressure sodium vapor lamps. The infrared radiation is reflected back into the lamp, which increases the temperature within the tube and therefore improves the performance of the lamp.^[37]
Indium's melting point of 429.7485 K (156.5985 °C) is a defining fixed point on the international temperature scale ITS-90.^[49]
Indium's high neutron capture cross section for thermal neutrons makes it suitable for use in control rods for nuclear reactors, typically in an alloy containing 80% silver, 15% indium, and 5% cadmium.^[50]
In nuclear engineering, the (n,n') reactions of ¹¹³In and ¹¹⁵In are used to determine magnitudes of neutron fluxes.^[51]
Indium is also used as a thermal interface material by personal computer enthusiasts in the form of pre-shaped foil sheets fitted between the heat-transfer surface of a microprocessor and its heat sink. The application of heat partially melts the foil and allows the indium metal to fill in any microscopic gaps and pits between the two surfaces, removing any insulating air pockets that would otherwise compromise heat transfer efficiency.^[52]
¹¹¹In emits gamma radiation and is used in indium leukocyte imaging, or indium scintigraphy, a technique of medical imaging that is particularly helpful in differentiating conditions such as osteomyelitis from decubitus ulcers for assessment of route and duration of antibiotic therapy.^[53] Indium leukocyte scintigraphy has many applications, including early phase drug development, and the monitoring of activity of white blood cells. For the test, blood is taken from the patient, white cells removed, labeled with the radioactive ¹¹¹In, then re-injected back into the patient. Gamma imaging will then reveal any areas of on-going white cell localization such as new and developing areas of infection.

Precautions and health issues[edit]

Pure indium in metal form is considered nontoxic by most sources. In the welding and semiconductor industries, where indium exposure is relatively high, there have been no reports of any toxic side-effects. Indium compounds, like aluminum compounds, complex with hydroxyls to form insoluble salts in basic conditions, and are thus not well-absorbed from food, giving them fairly low oral toxicty. Soluble indium(III) is toxic when delivered parenterally, however, causing damage primarily to the kidney (both inner and outer parts), but additionally to heart and liver, and may be teratogenic.^[54] Other indium compounds are toxic when administered outside the gastrointestinal tract: for example, anhydrous indium trichloride (InCl₃) and indium phosphide (InP) are quite toxic when delivered into the lungs (the latter is a suspected carcinogen).^[55]^[56] Occupational exposure to indium compounds was associated with PAP, cholesterol ester crystals and granulomas, pulmonary fibrosis, emphysema, and pneumothoraces. The available evidence suggests exposure to indium compounds causes a novel lung disease that may begin with PAP and progress to include fibrosis and emphysema, and, in some cases, premature death ^[57]

References[edit]

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External links[edit]

Indium at The Periodic Table of Videos (University of Nottingham)
Reducing Agents > Indium low valent

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ZnO nanoflower-based photoelectrochemical DNAzyme sensor for the detection of Pb2+.

Zhang B1, Lu L2, Hu Q2, Huang F2, Lin Z3.Author information 1State Key Laboratory of Structures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China; Key Laboratory of Design and Assembly of Functional Nanostructures, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.2Key Laboratory of Optoelectronic Materials Chemistry and Physical Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.3State Key Laboratory of Structures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China; Key Laboratory of Design and Assembly of Functional Nanostructures, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. Electronic address: zlin@fjirsm.ac.cn.AbstractLead contamination is now widespread, and exposure to lead may cause adverse effects on human beings. In this study, a photoelectrochemical sensor based on flower-like ZnO nanostructures was developed for Pb(2+) detection, using a Pb(2+)-dependent DNAzyme as the recognition unit and a double-strand DNA intercalator, Ru(bpy)2(dppz)(2+) (bpy=2,2'-bipyridine, dppz=dipyrido[3,2-a:2',3'-c] phenazine) as the photoelectrochemical signal reporter. The ZnO nanoflower was fabricated on an indium tin oxide (ITO) electrode by the convenient hydrothermal decomposition method. The morphology and photoelectrochemical property of the ZnO nanoflowers were characterized by SEM, XRD and photocurrent measurements. DNAzyme-substrate duplex was assembled on an ITO/ZnO electrode through electrostatic adsorption. In the presence of Pb(2+), RNA-cleavage activity of the DNAzyme was activated and its substrate strand was cleaved, resulting in the release of Ru(bpy)2(dppz)(2+) from the DNA film and the concomitant photocurrent decrease. The detection principle was verified by fluorescence measurements. Under the optimized conditions, a linear relationship between photocurrent and Pb(2+) concentration was obtained over the range of 0.5-20 nM, with a detection limit of 0.1 nM. Interference from other common metal ions was found negligible. Applicability of the sensor was demonstrated by analyzing lead level in human serum and Pb(2+) spiked water samples. This facile and economical sensor system showed high sensitivity and selectivity, thus can be potentially applied for on-site monitoring of lead contaminant.
Biosensors & bioelectronics.Biosens Bioelectron.2014 Jun 15;56:243-9. doi: 10.1016/j.bios.2014.01.026. Epub 2014 Jan 23.
Lead contamination is now widespread, and exposure to lead may cause adverse effects on human beings. In this study, a photoelectrochemical sensor based on flower-like ZnO nanostructures was developed for Pb(2+) detection, using a Pb(2+)-dependent DNAzyme as the recognition unit and a double-strand
PMID 24508815

Development of a 124I-labeled version of the anti-PSMA monoclonal antibody capromab for immunoPET staging of prostate cancer: Aspects of labeling chemistry and biodistribution.

Tolmachev V1, Malmberg J2, Estrada S2, Eriksson O2, Orlova A2.Author information 1Division of Biomedical Radiation Sciences, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.2Preclinical PET Platform, Uppsala University, Uppsala, Sweden.AbstractCorrect staging of prostate cancer is an unmet clinical need. Radionuclide targeting of prostate-specific membrane antigen (PSMA) with 111In-labeled capromab pendetide (ProstaScint) is a clinical option for prostate cancer staging. We propose the use of 124I-labeled capromab to decrease the retention of radioactivity in healthy organs (due to the non-residualizing properties of the radiolabel). The use of 124I as a label should increase imaging sensitivity due to the advantages of PET as an imaging modality. Capromab targets the intracellular domain of PSMA; accumulation of radioactivity in the tumor should not depend on internalization of the antigen/antibody complex. Capromab was iodinated, and its targeting properties were compared with indium labeled counterpart in LNCaP xenografts in dual isotope mode. PSMA-negative xenografts (PC3) were used as a negative control. Radioiodinated capromab bound to PSMA specifically. Biodistribution of 125I/111In-capromab showed a more rapid clearance of iodine radioactivity from liver, spleen, kidneys, bones, colon tissue, as well as tumors. Maximum tumor uptake (13±8% ID/g for iodine and 29±9% ID/g for indium) and tumor-to-non-tumor ratios for both agents were measured 5 days post-injection (pi). High tumor accumulation and low uptake of radioactivity in normal organs were confirmed using microPET/CT 5 days pi of 124I-capromab.
International journal of oncology.Int J Oncol.2014 Jun;44(6):1998-2008. doi: 10.3892/ijo.2014.2376. Epub 2014 Apr 10.
Correct staging of prostate cancer is an unmet clinical need. Radionuclide targeting of prostate-specific membrane antigen (PSMA) with 111In-labeled capromab pendetide (ProstaScint) is a clinical option for prostate cancer staging. We propose the use of 124I-labeled capromab to decrease the retentio
PMID 24718894

Plasmon-assisted photocurrent generation from silver nanoparticle monolayers combined with porphyrins via their different chain-length alkylcarboxylates.

Kakuta T, Kon H, Kajikawa A, Kanaizuka K, Yagyu S, Miyake R, Ishizakil M, Uruma K, Togashi T, Sakamoto M, Kurihara M.AbstractThree-typed porphyrin derivatives with a different chain-length alkylcarboxylic acid as their peripheral anchor group have been prepared. Anodic photocurrents were observed in a simple system where the porphyrin derivatives were directly anchored on an indium tin oxide (ITO) electrode. Cathodic photocurrents and their plasmon-assisted enhancement appeared from an Ag nanoparticle (Ag NP) composite monolayer combined with the porphyrin derivatives on the ITO electrode. In the photocurrent generation mechanism, Ag NPs played both the roles as photon- and energy-transfer to the porphyrin derivatives. The plasmon-assisted enhancement was affected by the chain-lengths of the peripheral anchor groups.
Journal of nanoscience and nanotechnology.J Nanosci Nanotechnol.2014 Jun;14(6):4090-6.
Three-typed porphyrin derivatives with a different chain-length alkylcarboxylic acid as their peripheral anchor group have been prepared. Anodic photocurrents were observed in a simple system where the porphyrin derivatives were directly anchored on an indium tin oxide (ITO) electrode. Cathodic phot
PMID 24738356

Japanese Journal

Growth and characterization of indium-doped Zn

Jpn. J. Appl. Phys. 55(4), 041201, 2016-02-25
NAID 150000112032

Growth and characterization of indium doped silicon single crystals at industrial scale

Jpn. J. Appl. Phys. 55(3), 031305, 2016-02-22
NAID 150000111940

Optical properties of inorganic electroluminescent devices with nanostripe electrodes

Jpn. J. Appl. Phys. 55(3S1), 03CD03, 2016-02-19
NAID 150000111948

Related Pictures

★リンクテーブル★

リンク元	「インジウム」「In」
拡張検索	「indium(111In) diethylenetriamine pentaaceticacid」「indium-111-DTPA」「indium radioisotope」「indium chloride(111In)」

「インジウム」

Indium
	49In
	cadmium ← indium → tin
Appearance
	silvery lustrous gray;
General properties
Name, symbol, number	indium, In, 49
Pronunciation	/ˈɪndiəm/ IN-dee-əm
Element category	post-transition metal
Group, period, block	13, 5, p
Standard atomic weight	114.818
Electron configuration	[Kr] 4d10 5s2 5p1; 2, 8, 18, 18, 3
History
Discovery	Ferdinand Reich and Hieronymous Theodor Richter (1863)
First isolation	Hieronymous Theodor Richter (1867)
Physical properties
Phase	solid
Density (near r.t.)	7.31 g·cm−3
Liquid density at m.p.	7.02 g·cm−3
Melting point	429.7485 K, 156.5985 °C, 313.8773 °F
Boiling point	2345 K, 2072 °C, 3762 °F
Heat of fusion	3.281 kJ·mol−1
Heat of vaporization	231.8 kJ·mol−1
Molar heat capacity	26.74 J·mol−1·K−1
Vapor pressure
Atomic properties
Oxidation states	3, 2, 1 (amphoteric oxide)
Electronegativity	1.78 (Pauling scale)
Ionization energies	1st: 558.3 kJ·mol−1
	2nd: 1820.7 kJ·mol−1
	3rd: 2704 kJ·mol−1
Atomic radius	167 pm
Covalent radius	142±5 pm
Van der Waals radius	193 pm
Miscellanea
Crystal structure	tetragonal
Magnetic ordering	diamagnetic
Electrical resistivity	(20 °C) 83.7 nΩ·m
Thermal conductivity	81.8 W·m−1·K−1
Thermal expansion	(25 °C) 32.1 µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 1215 m·s−1
Young's modulus	11 GPa
Mohs hardness	1.2
Brinell hardness	8.83 MPa
CAS registry number	7440-74-6
Most stable isotopes
	Main article: Isotopes of indium
	v; t; e; · r

　　[★]

英: indium、In
商: インジウム(111In)オキシン、インジウムDTPA(111In)、ゼヴァリンインジウム(111In)、塩化インジウム(111In)

「In」

　　[★] インジウム indium 　

「indium(111In) diethylenetriamine pentaaceticacid」

　　[★]

関: ジエチレントリアミン五酢酸インジウム(111In)

「indium-111-DTPA」

　　[★] 111In-ジエチレントリアミン五酢酸

「indium radioisotope」

　　[★]

インジウム放射性同位体

「indium chloride(111In)」

　　[★] 111In-塩化インジウム

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