PACKAGED SODIUM CHLORIDE AND STORAGE METHOD FOR SODIUM CHLORIDE

摘要

The purpose of the present invention is to provide a storage technology for sodium chloride having excellent property stability, with which it is possible to inhibit the solidification of sodium chloride, even during long-term storage, without adding additives. By setting the purity of sodium chloride to at least 99.5 wt% and the average particle diameter to at least 150 μm, storing the sodium chloride in a moisture-proof container having a moisture permeability of less than 3 g/m2∙24h, and setting the relative humidity inside the moisture-proof container so as to be maintained at 55% or less, it is possible to prevent the sodium chloride from solidifying even during long-term storage and to increase the property stability of the sodium chloride.