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Cadmium chloride is hygroscopic, so to get a stable sintered film, cadmium chloride and organic material should not remain in the sample. So after drying, the sample was sintered at 500°C for 10 min to remove the organic materials left which have been used as binder in the formation of paste.

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Cadmium occurs as a minor component in most zinc ores and is a byproduct of zinc production. Cadmium was used for a long time as a corrosion-resistant plating on steel, and cadmium compounds are used as red, orange and yellow pigments, to color glass, and to stabilize plastic.

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Cadmium is a toxic heavy metal associated with osteoporosis, liver, and kidney disease. The only study measuring cadmium levels in vegans is from the Slovak Republic and showed vegans to have higher levels than omnivores, and levels high enough in some vegans to raise the concern of the researchers.

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Cadmium Fact Sheet | OEHHA

Cadmium is a bluish-white metal that occurs widely at low levels in the environment, and may be recycled from used nickel-cadmium batteries. Cadmium appears on the Proposition 65 list of chemicals known to cause cancer and reproductive harm.

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