参考文献
Brode; Van Dolah
Industrial and Engineering Chemistry, 1947 , vol. 39, p. 1157,1158
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Du Pont de Nemours and Co
Chem. Zentralbl., 1938 , vol. 109, # I p. 1457
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Du Pont de Nemours and Co.
Patent: US2087691 , 1935 ;