salt properties

The properties of salt help us understand its beneficial uses.

The formula for salt, sodium chloride, is 60.663% elemental chlorine (Cl) and 39.337% sodium (Na). Chlorine’s atomic weight is 35.4527; for sodium, 22.989768.

Chemical Properties of Pure Sodium Chloride

Property	Value
Molecular weight	NaCl 58.4428
Atomic weight – Na	22.989768 (39.337%)
Atomic weight – Cl	35.4527 (60.663%)
Specific gravity	2.1 – 2.6
Eutectic composition	23.31% NaCl
Freezing point of eutectic mixture	21.12° C (-6.016°F)
pH of aqueous solution	neutral

Solubility of Salt at Various Temperatures

Temperature °F	Temperature °C	% Salt
-6	-21.11	23.31*
0	-17.78	23.83
10	-12.22	24.7
20	-6.67	25.53
30	-1.1	26.16
32	0	26.29
32.2	0.1	26.31**
40	4.44	26.33
50	10	26.36
60	15.56	26.395
70	21.11	26.45
80	26.67	26.52
100	37.78	26.68
125	51.67	26.92
150	65.56	27.21
175	79.44	27.62
200	93.33	27.91
212	100	28.12
220	104.44	28.29
227.5	108.7	28.46***