Molecular weight - NaCl

58.4428

Atomic weight - Na

22.989768 (39.337%)

Atomic weight - Cl

35.4527 (60.663%)

Eutectic composition

23.31% NaCI

Freezing point of eutectic mixture

-21.12 Celsius (-6.016 Farenheit)

Crystal form

isometric, cubic

Color

clear to white

Index of refraction

1.5442

Density or specific gravity

2.165 (135 lb/cubic feet)

Bulk density, approximate (dry, ASTM D 632 gradation)

1.154 (72 lb/cubic feet)

Angle of repose (dry, ASTM D 632 gradation)

32 degrees

Melting point

800.8 Celsius (1,473.4 Farenheit)

Boiling point

1,413 Celsius (2,575 Farenheit)

Hardness (Moh's Scale)

2.5

Critical humidity at 20 Celsius, (68 Farenheit)

75.3%

pH of aqueous solution

neutral