28

Fluorine, chlorine, bromine and iodine:

Sulfur, sublimed or precipitated; colloidal sulfur

Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)

Hydrogen, rare gases and other nonmetals:

Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury:

Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid:

Sulfuric acid; oleum

Nitric acid; sulfonitric acids

Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:

Oxides of boron; boric acids

Other inorganic acids and other inorganic oxygen compounds of nonmetals:

Halides and halide oxides of nonmetals:

Sulfides of nonmetals; commercial phosphorus trisulfide:

Ammonia, anhydrous or in aqueous solution:

Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:

Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium:

Zinc oxide; zinc peroxide

Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:

Chromium oxides and hydroxides:

Manganese oxides:

Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3:

Cobalt oxides and hydroxides; commercial cobalt oxides

Titanium oxides

Lead oxides; red lead and orange lead:

Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides:

Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts:

Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides:

Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites:

Chlorates and perchlorates; bromates and perbromates; iodates and periodates:

Sulfides; polysulfides, whether or not chemically defined:

Dithionites and sulfoxylates:

Sulfites; thiosulfates:

Sulfates; alums; peroxosulfates (persulfates):

Nitrites; nitrates:

Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:

Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate:

Cyanides, cyanide oxides and complex cyanides:

Silicates; commercial alkali metal silicates:

Borates; peroxoborates (perborates):

Salts of oxometallic or peroxometallic acids:

Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides:

Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals:

Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products:

Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined:

Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals:

Hydrogen peroxide, whether or not solidified with urea

Carbides, whether or not chemically defined:

Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849:

Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams:

Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals: