Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3756Chemical news office., 1932 |
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Strona 233
... figure of 13 million tons . Crookes gave his famous warning in 1898 ; within 20 years the chemist had solved the problem put to him , whilst to - day the price of nitro- gen for the land has fallen to a figure of £ 7 per ton which would ...
... figure of 13 million tons . Crookes gave his famous warning in 1898 ; within 20 years the chemist had solved the problem put to him , whilst to - day the price of nitro- gen for the land has fallen to a figure of £ 7 per ton which would ...
Strona 234
... figures give some idea of the scale on which the ammonia industry is being worked . The two uses of hydrogen we have already considered form more or less completed chapters its use in conjunction with oil and coal is only on the ...
... figures give some idea of the scale on which the ammonia industry is being worked . The two uses of hydrogen we have already considered form more or less completed chapters its use in conjunction with oil and coal is only on the ...
Strona 236
... figures for soda ash are not available . In 1930 , there was a de- cline to 72,000 tons from 87,200 tons in 1929 . I.G. REPORT FOR LAST QUARTER , 1931 . The quarterly business report of the German Dye Trust for the last quarter of 1931 ...
... figures for soda ash are not available . In 1930 , there was a de- cline to 72,000 tons from 87,200 tons in 1929 . I.G. REPORT FOR LAST QUARTER , 1931 . The quarterly business report of the German Dye Trust for the last quarter of 1931 ...
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