| 31. | Alkalis added to indium sulfate solutions precipitate basic salts.
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| 32. | Two indium ions are linked via three sulfate groups.
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| 33. | Good absorbers are boron, cadmium, gadolinium, silver, and indium.
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| 34. | The material of choice for SRLs is indium phosphide.
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| 35. | The collectors and emitters of the transistors were created by welding indium beads.
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| 36. | Indium does not oxidize in air at ambient conditions.
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| 37. | Flat panel displays incorporate a thin film of electrically conducting indium tin oxide.
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| 38. | Bonding wires are especially susceptible to indium attack.
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| 39. | Also, although indium is less rare than silver, it is more expensive.
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| 40. | They isolated the indium at the Freiberg University of Mining and Technology in Germany.
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