m-Nitrobenzene diazonium perchlorate

Forbidden

m-Nitrophenyldinitro methane

Forbidden

m-Phenylene diaminediperchlorate (dry)

Forbidden

Magnesium alkyls

4.2

UN3053

I

4.2, 4.3

Magnesium aluminum phosphide

4.3

UN1419

I

4.3, 6.1

Magnesium arsenate

6.1

UN1622

II

6.1

Magnesium bisulfite solution, see Bisulfites, aqueous solutions, n.o.s.

Magnesium bromate

5.1

UN1473

II

5.1

Magnesium chlorate

5.1

UN2723

II

5.1

Magnesium diamide

4.2

UN2004

II

4.2

Magnesium diphenyl

4.2

UN2005

I

4.2

Magnesium dross, wet or hot

Forbidden

Magnesium fluorosilicate

6.1

UN2853

III

6.1

Magnesium granules, coated particle size not less than 149 microns

4.3

UN2950

III

4.3

Magnesium hydride

4.3

UN2010

I

4.3

Magnesium nitrate

5.1

UN1474

III

5.1

Magnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings or ribbons

4.1

UN1869

III

4.1

Magnesium perchlorate

5.1

UN1475

II

5.1

Magnesium peroxide

5.1

UN1476

II

5.1

Magnesium phosphide

4.3

UN2011

I

4.3, 6.1

Magnesium, powder or Magnesium alloys, powder

4.3

UN1418

I

4.3, 4.2

Magnesium, powder or Magnesium alloys, powder

4.3

UN1418

II, III

4.3, 4.2

Magnesium scrap, see Magnesium, etc. (UN 1869)

Magnesium silicide

4.3

UN2624

II

4.3

Magnetized material, see section 173.21

Maleic acid

8

NA2215

III

8

Maleic anhydride

8

UN2215

III

8

Malononitrile

6.1

UN2647

II

6.1

Mancozeb (manganese ethylenebisdithiocarbamate complex with zinc) see Maneb

Maneb or Maneb preparations with not less than 60 percent maneb

4.2

UN2210

III

4.2, 4.3

Maneb stabilized or Maneb preparations, stabilized against self-heating

4.3

UN2968

III

4.3

Manganese nitrate

5.1

UN2724

III

5.1

Manganese resinate

4.1

UN1330

III

4.1

Mannitan tetranitrate

Forbidden

Mannitol hexanitrate (dry)

Forbidden

Mannitol hexanitrate, wetted or Nitromannite, wetted with not less than 40 percent water, or mixture of alcohol and water, by mass

1.1D

UN0133

II

1.1D

Marine pollutants, liquid or solid, n.o.s., see Environmentally hazardous substances, liquid or solid, n.o.s.

Matches, block, see Matches, 'strike anywhere'

Matches, fusee

4.1

UN2254

III

4.1

Matches, safety (book, card or strike on box)

4.1

UN1944

III

4.1

Matches, strike anywhere

4.1

UN1331

III

4.1

Matches, wax, Vesta

4.1

UN1945

III

4.1

Matting acid, see Sulfuric acid

Medicine, liquid, flammable, toxic, n.o.s.

3

UN3248

II, III

3, 6.1

Medicine, liquid, toxic, n.o.s.

6.1

UN1851

II, III

6.1

Medicine, solid, toxic, n.o.s.

6.1

UN3249

II, III

6.1

Medicines, corrosive, liquid, n.o.s.

8

NA1760

II, III

8

Medicines, corrosive, solid, n.o.s.

8

NA1759

II, III

8

Medicines, flammable, liquid, n.o.s.

3

NA1993

I, II, III

3

Medicines, flammable, solid, n.o.s.

4.1

NA1325

II

4.1

Medicines, oxidizing substance, solid, n.o.s.

5.1

NA1479

II

5.1

Memtetrahydrophthalic anhydride, see Corrosive liquids, n.o.s.

Mercaptans, liquid, flammable, n.o.s., or Mercaptan mixture, liquid, flammable, n.o.s..

3

UN3336

I, II, III

3

Mercaptans, liquid, flammable, toxic, n.o.s. or Mercaptan mixtures, liquid, flammable, toxic, n.o.s.

3

UN1228

II, III

3, 6.1

Mercaptans, liquid, toxic, flammable, n.o.s. or Mercaptan mixtures, liquid, toxic, flammable, n.o.s., flash point not less than 23 degrees C

6.1

UN3071

II

6.1, 3

5-Mercaptotetrazol-1-acetic acid

1.4C

UN0448

II

1.4C

Mercuric arsenate

6.1

UN1623

II

6.1

Mercuric chloride

6.1

UN1624

II

6.1

Mercuric compounds, see Mercury compounds, etc.

Mercuric nitrate

6.1

UN1625

II

6.1

Mercuric potassium cyanide

6.1

UN1626

I

6.1

Mercuric sulfocyanate, see Mercury thiocyanate

Mercurol, see Mercury nucleate

Mercurous azide

Forbidden

Mercurous compounds, see Mercury compounds, etc.

Mercurous nitrate

6.1

UN1627

II

6.1

Mercury

8

UN2809

III

8

Mercury acetate

6.1

UN1629

II

6.1

Mercury acetylide

Forbidden

Mercury ammonium chloride

6.1

UN1630

II

6.1

Mercury based pesticides, liquid, flammable, toxic, flash point less than 23 degrees C

3

UN2778

I, II

3, 6.1

Mercury based pesticides, liquid, toxic

6.1

UN3012

I, II, III

6.1

Mercury based pesticides, liquid, toxic, flammable, flashpoint not less than 23 degrees C

6.1

UN3011

I, II, III

6.1, 3

Mercury based pesticides, solid, toxic

6.1

UN2777

I, II, III

6.1

Mercury benzoate

6.1

UN1631

II

6.1

Mercury bromides

6.1

UN1634

II

6.1

Mercury compounds, liquid, n.o.s.

6.1

UN2024

I, II, III

6.1

Mercury compounds, solid, n.o.s.

6.1

UN2025

I, II, III

6.1

Mercury contained in manufactured articles

8

UN2809

III

8

Mercury cyanide

6.1

UN1636

II

6.1

Mercury fulminate, wetted with not less than 20 percent water, or mixture of alcohol and water, by mass

1.1A

UN0135

II

1.1A

Mercury gluconate

6.1

UN1637

II

6.1

Mercury iodide aquabasic ammonobasic (Iodide of Millon's base)

Forbidden

Mercury iodide, solid

6.1

UN1638

II

6.1

Mercury iodide, solution

6.1

UN1638

II

6.1

Mercury nitride

Forbidden

Mercury nucleate

6.1

UN1639

II

6.1

Mercury oleate

6.1

UN1640

II

6.1

Mercury oxide

6.1

UN1641

II

6.1

Mercury oxycyanide

Forbidden

Mercury oxycyanide, desensitized

6.1

UN1642

II

6.1

Mercury potassium iodide

6.1

UN1643

II

6.1

Mercury salicylate

6.1

UN1644

II

6.1

Mercury sulfates

6.1

UN1645

II

6.1

Mercury thiocyanate

6.1

UN1646

II

6.1

Mesityl oxide

3

UN1229

III

3

Metal alkyl halides water-reactive, n.o.s. or Metal aryl halides water-reactive, n.o.s.

4.2

UN3049

I

4.2, 4.3

Metal alkyl hydrides water-reactive, n.o.s. or Metal aryl hydrides water-reactive, n.o.s.

4.2

UN3050

I

4.2, 4.3

Metal alkyl, solution, n.o.s.

3

NA9195

II

3

Metal alkyls water-reactive, n.o.s. or Metal aryls water-reactive, n.o.s.

4.2

UN2003

I

4.2, 4.3

Metal carbonyls, n.o.s.

6.1

UN3281

I, II, III

6.1

Metal catalyst, dry

4.2

UN2881

I, II, III

4.2

Metal catalyst, wetted with a visible excess of liquid

4.2

UN1378

II

4.2

Metal hydrides, flammable, n.o.s.

4.1

UN3182

II, III

4.1

Metal hydrides, water-reactive, n.o.s.

4.3

UN1409

I, II

4.3

Metal powder, self-heating, n.o.s.

4.2

UN3189

II, III

4.2

Metal powders, flammable, n.o.s.

4.1

UN3089

II, III

4.1

Metal salts of methyl nitramine (dry)

Forbidden

Metal salts of organic compounds, flammable, n.o.s.

4.1

UN3181

II, III

4.1

Metaldehyde

4.1

UN1332

III

4.1

Metallic substance, water-reactive, n.o.s.

4.3

UN3208

I, II, III

4.3

Metallic substance, water-reactive, self-heating, n.o.s.

4.3

UN3209

I, II, III

4.3, 4.2

Methacrylaldehyde, inhibited

3

UN2396

II

3, 6.1

Methacrylic acid, inhibited

8

UN2531

III

8

Methacrylonitrile, inhibited

3

UN3079

I

3, 6.1

Methallyl alcohol

3

UN2614

III

3

Methane and hydrogen, mixtures, see Hydrogen and methane, mixtures, etc.

Methane, compressed or Natural gas, compressed (with high methane content)

2.1

UN1971

2.1

Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid), with high methane content)

2.1

UN1972

2.1

Methanesulfonyl chloride

6.1

UN3246

I

6.1, 8

Methanol

3

UN1230

II

3, 6.1

Methanol

3

UN1230

II

3

Methazoic acid

Forbidden

1-Methoxy-2-propanol

3

UN3092

III

3

4-Methoxy-4-methylpentan-2-one

3

UN2293

III

3

Methoxymethyl isocyanate

3

UN2605

I

3, 6.1

Methyl 2-chloropropionate

3

UN2933

III

3

Methyl acetate

3

UN1231

II

3

Methyl acetylene and propadiene mixtures, stabilized

2.1

UN1060

2.1

Methyl acrylate, inhibited

3

UN1919

II

3

Methyl alcohol, see Methanol

Methyl allyl chloride

3

UN2554

II

3

Methyl amyl ketone, see Amyl methyl ketone

Methyl bromide

2.3

UN1062

2.3

Methyl bromide and chloropicrin mixtures with more than 2 percent chloropicrin, see Chloropicrin and methyl bromide mixtures

Methyl bromide and chloropicrin mixtures with not more than 2 percent chloropicrin, see Methyl bromide

Methyl bromide and ethylene dibromide mixtures, liquid

6.1

UN1647

I

6.1

Methyl bromoacetate

6.1

UN2643

II

6.1

Methyl butyrate

3

UN1237

II

3

Methyl chloride and chloropicrin mixtures, see Chloropicrin and methyl chloride mixtures

Methyl chloride and methylene chloride mixtures

2.1

UN1912

2.1

Methyl chloride or Refrigerant gas R 40

2.1

UN1063

2.1

Methyl chloroacetate

6.1

UN2295

I

6.1, 3

Methyl chlorocarbonate, see Methyl chloroformate

Methyl chloroform, see 1,1,1-Trichloroethane

Methyl chloroformate

6.1

UN1238

I

6.1, 3, 8

Methyl chloromethyl ether

6.1

UN1239

I

6.1, 3

Methyl dichloroacetate

6.1

UN2299

III

6.1

Methyl ethyl ether, see Ethyl methyl ether

Methyl ethyl ketone peroxide, in solution with more than 9 percent by mass active oxygen

Forbidden

Methyl ethyl ketone, see Ethyl methyl ketone

Methyl fluoride or Refrigerant gas R 41

2.1

UN2454

2.1

Methyl formate

3

UN1243

I

3

Methyl iodide

6.1

UN2644

I

6.1

Methyl isobutyl carbinol

3

UN2053

III

3

Methyl isobutyl ketone

3

UN1245

II

3

Methyl isobutyl ketone peroxide, in solution with more than 9 percent by mass active oxygen

Forbidden

Methyl isocyanate

6.1

UN2480

I

6.1, 3

Methyl isopropenyl ketone, inhibited

3

UN1246

II

3

Methyl isothiocyanate

6.1

UN2477

I

6.1, 3

Methyl isovalerate

3

UN2400

II

3

Methyl magnesium bromide, in ethyl ether

4.3

UN1928

I

4.3, 3

Methyl mercaptan

2.3

UN1064

2.3, 2.1

Methyl mercaptopropionaldehyde, see Thia-4-pentanal

Methyl methacrylate monomer, inhibited

3

UN1247

II

3

Methyl nitramine (dry)

Forbidden

Methyl nitrate

Forbidden

Methyl nitrite

Forbidden

Methyl norbornene dicarboxylic anhydride, see Corrosive liquids, n.o.s.

Methyl orthosilicate

6.1

UN2606

I

6.1, 3

Methyl parathion liquid

6.1

NA3018

II

6.1

Methyl parathion solid

6.1

NA2783

II

6.1

Methyl phosphonic dichloride

6.1

NA9206

I

6.1, 8

Methyl phosphonothioic dichloride, anhydrous, see Corrosive liquid, n.o.s.

Methyl phosphorus dichloride, pyrophoric liquid

6.1

NA2845

I

6.1, 4.2

Methyl picric acid (heavy metal salts of)

Forbidden

Methyl propionate

3

UN1248

II

3

Methyl propyl ether

3

UN2612

II

3

Methyl propyl ketone

3

UN1249

II

3

Methyl sulfate, see Dimethyl sulfate

Methyl sulfide, see Dimethyl sulfide

Methyl tert-butyl ether

3

UN2398

II

3

Methyl trichloroacetate

6.1

UN2533

III

6.1

Methyl trimethylol methane trinitrate

Forbidden

Methyl vinyl ketone, stabilized

6.1

UN1251

I

6.1, 3, 8

2-Methyl-1-butene

3

UN2459

I

3

3-Methyl-1-butene

3

UN2561

I

3

2-Methyl-2-butene

3

UN2460

II

3

2-Methyl-2-heptanethiol

6.1

UN3023

I

6.1, 3

2-Methyl-5-ethylpyridine

6.1

UN2300

III

6.1

Methylal

3

UN1234

II

3

Methylamine, anhydrous

2.1

UN1061

2.1

Methylamine, aqueous solution

3

UN1235

II

3, 8

Methylamine dinitramine and dry salts thereof

Forbidden

Methylamine nitroform

Forbidden

Methylamine perchlorate (dry)

Forbidden

Methylamyl acetate

3

UN1233

III

3

N-Methylaniline

6.1

UN2294

III

6.1

3-Methylbutan-2-one

3

UN2397

II

3

N-Methylbutylamine

3

UN2945

II

3, 8

Methylchlorosilane

2.3

UN2534

2.3, 2.1, 8

Methylcyclohexane

3

UN2296

II

3

Methylcyclohexanols, flammable

3

UN2617

III

3

Methylcyclohexanone

3

UN2297

III

3

Methylcyclopentane

3

UN2298

II

3

Methyldichloroarsine

6.1

NA1556

I

6.1

Methyldichlorosilane

4.3

UN1242

I

4.3, 8, 3

Methylene chloride, see Dichloromethane

Methylene glycol dinitrate

Forbidden

2-Methylfuran

3

UN2301

II

3

a-Methylglucoside tetranitrate

Forbidden

a-Methylglycerol trinitrate

Forbidden

5-Methylhexan-2-one

3

UN2302

III

3

Methylhydrazine

6.1

UN1244

I

6.1, 3, 8

4-Methylmorpholine or n-methylmorpholine

3

UN2535

II

3, 8

Methylpentadienes

3

UN2461

II

3

2-Methylpentan-2-ol

3

UN2560

III

3

Methylpentanes, see Hexanes

Methylphenyldichlorosilane

8

UN2437

II

8

1-Methylpiperidine

3

UN2399

II

3, 8

2-Nitro-2-methylpropanol nitrate

Forbidden

Methyltetrahydrofuran

3

UN2536

II

3

Methyltrichlorosilane

3

UN1250

I

3, 8

Mine rescue equipment containing carbon dioxide, see Carbon dioxide

Mines with bursting charge

1.1F/1.1D/ 1.2D/1.2F

UN0136/UN0137/ UN0138/UN0294

II

1.1F/1.1D/ 1.2D/1.2F

Mixed acid, see Nitrating acid, mixtures etc.

Mobility aids, see Wheel chair, electric

Model rocket motor

1.4C/1.4S

NA0276/NA0323

II

1.4C/1.4S

Molybdenum pentachloride

8

UN2508

III

8

mono-(Trichloro) tetra-(monopotassium dichloro)-penta-s-triazinetrione, dry (with more than 39 percent available chlorine)

5.1

NA2468

II

5.1

Monochloroacetone (unstabilized)

Forbidden

Monochloroethylene, see Vinyl chloride, inhibited

Monoethanolamine, see Ethanolamine, solutions

Monoethylamine, see Ethylamine

Morpholine

3

UN2054

III

3

Morpholine, aqueous, mixture, see Corrosive liquids, n.o.s.

Motor fuel anti-knock compounds see Motor fuel anti-knock mixtures

Motor fuel anti-knock mixtures

6.1

UN1649

I

6.1, 3

Motor spirit, see Gasoline

Muriatic acid, see Hydrochloric acid solution

Musk xylene, see 5-tert-Butyl-2,4,6-trinitro-m-xylene