The melting points of chemical elements are, in many cases, somewhat uncertain, owing to the different results obtained by different observers. This table gives the probable average value.

Substance.

Melting

Point,

Degrees C.

Substance.

Melting

Point

Degrees C.

Aluminum..................

625

Magnesium.............

775

Antimony....................

435

Manganese...................

1900

Bismuth..................

268.1

Mercury............

-39.04

Bromine.....................

-7.27

Nickel...............

1500

Cadmium....................

318

Osmium..............

2500

Caesium.........................

26.5

Nitrogen...........

-208

Chlorine, liquid...............

-102

Palladium...................

1600

Cobalt......................

1650

Phosphorus..........

44.25

Copper...........................

1100

Platinum...........

1900

Gallium.....................

30.15

Potassium...................

60

Germanium.........................

900

Rhodium............

2000

Gold........................

1080

Rubidium...................

38.5

Indium........................

176

Ruthenium..................

1800

Iodine...................

112

Selenium

217

Iridium.....................

2225

Silver.......................

950

Iron, pure...................

1635

Sodium..........

97.6

" White pig......

1075

Sulphur.....................

115.1

" gray pig................

1200

Tellurium...................

470

Steel........................

1360

Thallium....................

289

" cast...................

1375

Tin.........................

230

Lead...............

326

Zinc.........

415

Lithium................

180