Sub-Chapter | 2005 | 2007 | 2010 | 2011 |
Fluorine, chlorine, bromine and iodine. | $3,253 | $18,235 | $4,505 | $62,924 |
Sulphur, sublimed or precipitated | $6,215 | | | $44,994 |
Hydrogen, rare gases and other non-metals. | $87,804 | $23,527 | $17,964 | $28,123 |
Alkali or alkaline-earth metals; | $34,314 | $110,476 | $302,993 | $319,043 |
Hydrogen chloride (hydrochloric acid); | $33,795 | $21,778 | $79,366 | $92,332 |
Sulphuric acid; oleum. | $31,251 | $124,351 | $149,014 | $120,937 |
Nitric acid; sulphonitric acids. | $2,439 | $5,782 | $43,284 | |
Diphosphorus pentaoxide; phosphoric acid; | | $3,212 | | |
Oxides of boron; boric acids. | | | $158 | |
Other inorganic acids and oxygen compounds | $44,737 | $67,891 | $949,650 | $504,190 |
Halides and halide oxides of non-metals. | | | | $5,313 |
Ammonia, anhydrous or in aqueous solution. | $35,219 | $37,400 | $262 | $16,594 |
Sodium hydroxide (caustic soda); | $346,332 | $648,167 | $792,735 | $1,013,157 |
Zinc oxide; zinc peroxide. | $255 | | | |
Artificial corundum, whether or not chemically defined; | $979 | | $325 | $1,088 |
Chromium oxides and hydroxides. | $17,529 | $14,080 | | |
Iron oxides and hydroxides | $190 | $68 | | |
Titanium oxides. | $11,628 | | | |
Hydrazine and hydroxylamine and their inorganic salts | | | $41,239 | |
Fluorides; fluorosilicates and other complex fluorine salts. | $472 | | | |
Chlorides, chloride oxides and chloride hydroxides | $7,320 | $11,817 | $17,303 | $27,288 |
Hypochlorites; commercial calcium hypochlorite | $173,339 | $317,347 | $324,437 | $119,568 |
Chlorates and perchlorates; bromates and perbromates | | $3,206 | $2,830 | |
Sulphides; polysulphides | | $46,301 | $11,522 | |
Sulphites; thiosulphates. | $6,724 | $6,703 | $25,994 | $30,772 |
Sulphates; alums; peroxosulphates (persulphates). | $52,284 | $44,998 | $176,534 | $147,890 |
Nitrites; nitrates. | | $1,758 | $3,385 | $398 |
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates | $929 | $4,390 | $1,177 | $16,031 |
Carbonates; peroxocarbonates (percarbonates) | $77,030 | $60,248 | $130,878 | $100,668 |
Cyanides, cyanide oxides and complex cyanides. | $390 | | | |
Silicates; commercial alkali metal silicates. | | $3,953 | $503 | |
Salts of oxometallic or peroxometallic acids. | $809 | | $142 | |
Other salts of inorganic acids or peroxoacids | $104,315 | $143,028 | $112,483 | |
Isotopes other than those of heading 28.44 | $5,939 | $299 | | |
Compounds, inorganic or organic, of rare-earth metals | | | $2,224 | |
Hydrogen peroxide, whether or not solidified with urea | $1,074 | $478 | $14,135 | $881 |
Carbides, whether or not chemically defined. | $64,078 | $93,927 | $169,725 | $182,571 |
Other inorganic compounds | $3,049 | $10,131 | $1,193 | $11,790 |
Total | $1,153,692 | $1,823,551 | $3,375,960 | $2,846,552 |
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