Table 2. Melting, boiling, and ignition temperatures of pure metals in solid form

Spontaneous Heating and Pyrophoricity

DOE-HDBK-1081-94

PYROPHORIC METALS

Table 2. Melting, boiling, and ignition temperatures of pure metals in solid form.1 (From

NFPA Handbook, 17th Edition).

Temperature

Solid metal

Melting point

Boiling point

ignition

Pure metal

1,8322,3

5552,3

Aluminum

1,220

660

4,445

2,452

3472

1752

Barium

1,337

725

2,084

1,140

Calcium

1,548

824

2,625

1,440

1,300

704

Hafnium

4,032

2,223

9,750

5,399

1,7062

9302

Iron

2,795

1,535

5,432

3,000

Lithium

367

186

2,437

1,336

356

180

Magnesium

1,202

650

2,030

1,110

1,153

623

Plutonium

1,184

640

6,000

3,315

1,112

600

1562

692

Potassium

144

1,400

760

2394

1154

Sodium

208

1,616

880

1,3282

7202

Strontium

1,425

774

2,102

1,150

9322

5002

Thorium

3,353

1,845

8,132

4,500

Titanium

3,140

1,727

5,900

3,260

2,900

1,593

6,9002,5

3,8152,5

Uranium

2,070

1,132

6,900

3,815

1,6522

9002

Zinc

786

419

1,665

907

2,5522

1,4002

Zirconium

3,326

1,830

6,470

3,577

1. Variation of test conditions may produce different results.

2. Ignition in oxygen.

3. Spontaneous ignition in moist air.

4. Above indicated temperature.

5. Below indicated temperature.

Rev. 0

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Pyrophoricity