14 MARINE PRODUCTS OF COMMERCE 



other industries. The chemical industries use salt principally in the form of brine 

 ( in solution without evaporation ) . 



Table 5. Salt Sold or Used by Producers in the United States in 1947 and 1948. 

 Indicated by Classes and Uses in Short Tons.** 



1947 1948 



Use Evapo- Rock Brine Evapo- Rock Brine 



rated rated 



Chlorine, bleaches, 



chlorates, etc 368,430 711,439 1,661,943 336,180 705,315 1,796,533 



Soda ash ^ — 7,382,646 " " — 7,392,248 



Dyes and organic 



chemicals 59,683 67,100 — 78,873 104,401 — 



Soap (precipitant) ... 43,445 16,733 — 33,350 10,852 — 



Other chemicals 96,958 510,747 »> 91,529 523,737 " 



Textile processing 33,518 117,724 — 22,838 92,555 — 



Hides and leather .... 95,438 155,370 — 79,964 150,647 — 



Meat packing 368,670 408,019 — 324,041 366,259 — 



Fish curing 40,267 22,726 — 15,351 19,997 — 



Butter, cheese, and 



other dairy products 108,323 5,236 — 97,339 5,017 — 



Canning and preserving 150,482 16,694 — 125,958 18,853 — 



Other food processing 231,408 24,271 — 193,896 19,279 — 



Refrigeration 40,740 196,242 — 20,540 196,087 — 



Livestock 528,481 205,375 — 553,966 238,532 — 



Highways, railroads, 



dust and ice control 6,942 466,762 — 8,260 460,674 — 

 Table and other 



household 478,647 173,411 — 499,339 173,648 — 



Water treatment .... 220,330 231,812 "> 193,861 253,095 " 



Agriculture 14,785 9,198 — 13,609 19,867 — 



Metallurgy 22,094 65,027 — 16,625 49,152 — 



Undistributed <= 250,087 350,467 96,222 501,884 438,879 160,263 



Total 3,158,718 3,754,353 9,140,811 " 3,207,403 3,846,846 9,349,044 



^ Data for evaporated salt, included with "Undistributed". 

 ^ Data for salt in brine, included with "Undistributed". 



"^ Comprises miscellaneous uses and data not presentable by classes including most 

 exports. 



** Revised figure. 



Market Grades and Specifications 



Evaporated salt and rock salt are the two principal types of salt on the market. 

 Evaporated salt, which is the highest grade, is of three kinds, according to the 

 method of manufacture: granulated, made by the vacuum pan process; medium 



' Harris, F. E., and Tucker, E. M., "Salt Output in 1948 almost 16M Million Tons," 

 Mineral Market Report, C7. S. Bureau of Mines, Minerals Yearbook, 1739 (1949). 



