Salient Characteristics for GRTE Road Salt The salt is to be washed for removal of impurities, dewatered, selectively screened to insure the special gradation of salt, admixed with magnesium chloride and sodium ferrocyanide, and quality control tested. TYPICAL SCREEN ANALYSIS Retained Tyler Open. Ret. and Cumulativ e U.S.S Mesh Mesh (In.) % 3 0.265 0.265 5.9 4 4 0.1870 12.5 8 8 0.0937 38.5 16 14 0.0469 28.8 30 28 0.0236 10.0 Pan Pan 4.3 0 – 19 100.0
Chemical Analysis Sodium NaCl Chloride (dry basis) Magnesiu MgCl2 m Chloride Moisture (%) Water ppm Insoluble s
Typical (%)
99.91
(%)
0.60
Range
Cum.
Range
% 0 – 26 0 – 29 6 – 71 0 – 62 0 – 24
% 5.9 18.4 55.9 85.7 95.7
% 0 – 26 0 – 53 28 – 86 67 – 100 80 - 100
3.30 157
METHOD OF ANALYSIS American Society for Testing and Materials Procedures E534 and D632ADMIXTURE Minimum 50 parts per million sodium ferrocyanide (YPS) added to prevent caking. 0.60 percent magnesium chloride is added as an anti-freezing agent. Bulk delivery to be made 50 tons to Grand Teton National Park, 103 Headquarters Loop Road, Moose WY, 83012 and 25 tons to Grand Teton National Park, Colter Bay, 614 Alder Drive , Moran , WY 83013.