Section 52: Inorganic Chemicals


520

Rest of 52 not defined

522

Inorganic chem.elements

5220

Rest of 522 not defined

5221

Carbon nes,carbon black

5222

Other chemical elements

52220

Rest of 5222 not defined

52221

Hydrg.nitr.oxyg.rare gas

52222

Selenium,phosphorus,etc.

52223

Silicon

52224

Chlorine

52225

Fluorine,bromine,iodine

52226

Sulphur,purified

52227

Mercury

52228

Sodium,oth.alkali metals

52229

Calcium,strontium,barium

5223

Inorganic acid,oxide etc

52230

Rest of 5223 not defined

52231

Hydrochloric acid, etc.

52232

Sulphuric acid; oleum

52233

Nitric,sulphonitric acid

52234

Phosphoric acid etc.

52235

Boric acid, boron oxides

52236

Other inorganic acids

52237

Silicon dioxide

52238

Sulphur dioxide

52239

Oth.inorganic oxides etc

5224

Halog.sulph.comp.non-mtl

52241

Halides, oxides non-mtls

52242

Sulphides of non-metals

5225

Zinc,chrom.iron etc.oxid

52250

Rest of 5225 not defined

52251

Zinc oxide;zinc peroxide

52252

Chromium oxide,hydroxide

52253

Manganese oxides

52254

Iron oxides,hydroxides

52255

Cobalt oxides,hydroxides

52256

Titanium oxides

52257

Lead oxides

5226

Oth.inorgan.bases,oxides

52260

Rest of 5226 not defined

52261

Ammonia,anhydrous, etc.

52262

Sodium hydroxide,solid

52263

Sodium hydroxide,liquid

52264

Potassium hydroxide etc.

52265

Oxides,magnsm,stront,bar

52266

Aluminium hydroxide

52267

Artificial corundum

52268

Hydrazine,hydroxylamine

52269

Oth.inorgan.bases,oxides

523

Metal.salts,inorgan.acid

5230

Rest of 523 not defined

5231

Fluorides etc.

5232

Chloride,bromide,iodides

52320

Rest of 5232 not defined

52321

Ammonium chloride

52322

Calcium chloride

52329

Oth.chlords,bromds,iodid

5233

Hypochlorites, etc.

52330

Rest of 5233 not defined

52331

Hypochlorite,bromite,etc

52332

Chlorates of sodium

52339

Oth.chlors.,bromates etc

5234

Sulphides,sulphates etc.

52340

Rest of 5234 not defined

52341

Sodium sulphide

52342

Other sulphides

52343

Dithionites,sulphoxylate

52344

Sulphites; thiosulphates

52345

Sodium sulphates

52349

Other sulphates; alums

5235

Nitrites; nitrates

52350

Rest of 5235 not defined

52351

Nitrites

52352

Potassium nitrate

52359

Other nitrates

5236

Phosphites,phosphate,etc

52360

Rest of 5236 not defined

52361

Phosphinates,phosphonats

52362

Triammonium phosphate

52363

Other phosphates

52364

Sodium triphosphate

52365

Other polyphosphates

5237

Carbonates,percarbonates

52370

Rest of 5237 not defined

52371

Ammonium carbonates

52372

Neutral sodium carbonate

52373

Sodium hydrogencarbonate

52374

Potassium carbonates

52375

Lead carbonate

52379

Other carbonates

5238

Oth.metl.salt,inorg.acid

52380

Rest of 5238 not defined

52381

Cyanides,complex cyanide

52382

Fulminates,cyanates etc.

52383

Silicates

52384

Borates, perborates

52389

Salts, inorgan.acids nes

524

Other chemical compounds

5240

Rest of 524 not defined

5243

Metallic acid salts, etc

52431

Salts of metallic acids

52432

Precious metal compounds

5249

Inorganic chemicals nes

52490

Rest of 5249 not defined

52491

Hydrogen peroxide

52492

Phosphides

52493

Calcium carbide

52494

Carbides,excldng.calcium

52495

Hydrides,nitrides,etc.

52499

Inorganic compounds, nes

525

Radio-active materials

5250

Rest of 525 not defined

5251

Radio-active chemicals

52510

Rest of 5251 not defined

52511

Natural uranium etc.

52513

Uranium enriched, etc.

52515

Uranium depleted, etc.

52517

Spent fuel,nuclear react

52519

Radio-activ.material nes

5259

Stbl.isotope;rare earths

52591

Stable isotopes etc.

52595

Rare-earth metl.comp.etc