This section is from the book "A Treatise On Beverages or The Complete Practical Bottler", by Charles Herman Sulz. Also available from Amazon: A Treatise On Beverages.
Nitrate of sodium should be kept in well-stopped bottles. . Colorless, transparent, rhom-bohedral crystals, slightly deliquescent in damp air, odorless, having a cooling, saline and slightly bitter taste, and a neutral reaction. Soluble in 1.3 parts of water at 15° C. (59° F.), and in 0.6 part of boiling water; scarcely soluble in cold, but soluble in 40 parts of boiling alcohol. Its application is rare in the manufacture of artificial mineral waters.