HS 28
Inorganic Chemicals and Precious Metal Compounds
HS 28 covers a wide range of inorganic chemicals including acids, bases, salts, and compounds of precious metals, rare earth metals, and radioactive elements. This chapter includes industrial chemicals used in manufacturing, laboratory reagents, and specialized compounds for electronics and pharmaceuticals. A common example is sulfuric acid, widely sourced for industrial applications.
Headings in this chapter
- 2801Fluorine, Chlorine, Bromine and Iodine
- 2802Sulphur, Sublimed and Precipitated
- 2803Carbon and Carbon Blacks
- 2804Hydrogen, Rare Gases and Non-Metals
- 2805Alkali Metals and Rare-Earth Elements
- 2806Hydrogen Chloride and Chlorosulphuric Acid
- 2807Sulphuric Acid and Oleum
- 2808Nitric Acid and Sulphonitric Acids
- 2809Phosphoric Acid and Phosphorus Oxides
- 2810Oxides of Boron and Boric Acids
- 2811Inorganic Acids and Non-Metal Oxides
- 2812Non-Metal Halides and Halide Oxides
- 2813Non-Metal Sulphides and Phosphorus Trisulphide
- 2814Ammonia and Aqueous Solutions
- 2815Caustic Soda and Potassium Hydroxide
- 2816Magnesium and Alkaline Earth Hydroxides
- 2817Zinc Oxide and Peroxide
- 2818Aluminium Oxide and Hydroxide
- 2819Chromium Oxides and Hydroxides
- 2820Manganese Oxides
- 2821Iron Oxides and Earth Colours
- 2822Cobalt Oxides and Hydroxides
- 2823Titanium Oxides
- 2824Lead Oxides and Red Lead
- 2825Inorganic Bases, Metal Oxides and Peroxides
- 2826Fluorides and Complex Fluorine Salts
- 2827Chlorides, Bromides and Iodides
- 2828Hypochlorites and Chlorites
- 2829Chlorates, Perchlorates, Bromates and Iodates
- 2830Sulphides and Polysulphides
- 2831Dithionites and Sulphoxylates
- 2832Sulphites and Thiosulphates
- 2833Sulphates, Alums & Peroxosulphates
- 2834Nitrites and Nitrates
- 2835Phosphates and Polyphosphates
- 2836Carbonates and Peroxocarbonates
- 2837Cyanides and Complex Cyanides
- 2839Silicates and Alkali Metal Silicates
- 2840Borates and Peroxoborates
- 2841Salts of Oxometallic and Peroxometallic Acids
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