Harmonized System

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Section VI

PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES

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Chapter 29

Organic chemicals

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Heading 2904

Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated.

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2904.10

- Derivatives containing only sulpho groups, their salts and ethyl esters

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2904.20

- Derivatives containing only nitro or only nitroso groups

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2904.3

- Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride  :

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2904.31

-- Perfluorooctane sulphonic acid

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2904.32

-- Ammonium perfluorooctane sulphonate

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2904.33

-- Lithium perfluorooctane sulphonate

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2904.34

-- Potassium perfluorooctane sulphonate

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2904.35

-- Other salts of perfluorooctane sulphonic acid

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2904.36

-- Perfluorooctane sulphonyl fluoride

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2904.9

- Other  :

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2904.91

-- Trichloronitromethane (chloropicrin)

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2904.99

-- Other

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