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7440-74-6
In
4900SC
99.998%
15mm (0.59in) dia, 100mm (3.94in) long, random orientation
231-180-0
Class 4.1
UN3089
PG III
Characteristic
Indium is a chemical element with the symbol In and atomic number 49.Indium is a silvery-white, highly ductile post-transition metal with a bright luster. It is so soft (Mohs hardness 1.2) that like sodium, it can be cut with a knife. It also leaves a visible line on paper. It is a member of group 13 on the periodic table and its properties are mostly intermediate between its vertical neighbours gallium and thallium.
Phase at STP：solid
Appearance：silvery lustrous gray
Melting point：429.7485 K (156.5985 °C, 313.8773 °F)
Boiling point：2345 K (2072 °C, 3762 °F)
Density (near r.t.)：7.31 g/cm3
when liquid (at m.p.)：7.02 g/cm3
Triple point：429.7445 K, ~1 kPa
Heat of fusion：3.281 kJ/mol
Heat of vaporization：231.8 kJ/mol
Molar heat capacity：26.74 J/(mol·K)
Application
Indium is a minor component in zinc sulfide ores and is produced as a byproduct of zinc refinement. It is most notably used in the semiconductor industry, in low-melting-point metal alloys such as solders, in soft-metal high-vacuum seals, and in the production of transparent conductive coatings of indium tin oxide (ITO) on glass. Indium is considered a technology-critical element.
Characteristic
Indium is a chemical element with the symbol In and atomic number 49.Indium is a silvery-white, highly ductile post-transition metal with a bright luster. It is so soft (Mohs hardness 1.2) that like sodium, it can be cut with a knife. It also leaves a visible line on paper. It is a member of group 13 on the periodic table and its properties are mostly intermediate between its vertical neighbours gallium and thallium.
Phase at STP：solid
Appearance：silvery lustrous gray
Melting point：429.7485 K (156.5985 °C, 313.8773 °F)
Boiling point：2345 K (2072 °C, 3762 °F)
Density (near r.t.)：7.31 g/cm3
when liquid (at m.p.)：7.02 g/cm3
Triple point：429.7445 K, ~1 kPa
Heat of fusion：3.281 kJ/mol
Heat of vaporization：231.8 kJ/mol
Molar heat capacity：26.74 J/(mol·K)
Application
Indium is a minor component in zinc sulfide ores and is produced as a byproduct of zinc refinement. It is most notably used in the semiconductor industry, in low-melting-point metal alloys such as solders, in soft-metal high-vacuum seals, and in the production of transparent conductive coatings of indium tin oxide (ITO) on glass. Indium is considered a technology-critical element.
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