Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810

Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

28

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Hydrogen fluoride (hydrofluoric acid)

2811_11

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Hydrogen cyanide (hydrocyanic acid)

2811_12

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Inorganic acids; other than hydrogen fluoride

2811_19

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Carbon dioxide

2811_21

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Silicon dioxide

2811_22

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Inorganic oxygen compounds; of non-metals, n.e.c. in item no. 2811.2

2811_29

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