Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3750Chemical news office., 1932 |
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Strona 135
... temperature of 300 ° C . These residues were spread upon the slides in a similar manner , and heated in the air oven for one month . Similar slides were placed in the coal - gas atmosphere as above described . It was found that the re ...
... temperature of 300 ° C . These residues were spread upon the slides in a similar manner , and heated in the air oven for one month . Similar slides were placed in the coal - gas atmosphere as above described . It was found that the re ...
Strona 136
... temperature of 110 ° C. on sheet iron plates in a gas oven . Approximately 50 gms . of material were obtained . It was totally insoluble in chloro- 2+ 6+ 3+ form , and 11 per cent . was insoluble in pyridine . The ash content was 0.31 ...
... temperature of 110 ° C. on sheet iron plates in a gas oven . Approximately 50 gms . of material were obtained . It was totally insoluble in chloro- 2+ 6+ 3+ form , and 11 per cent . was insoluble in pyridine . The ash content was 0.31 ...
Strona 138
... temperature that can be obtained . 99 In this connection , of great interest are the latest designs of automatic electrically operated pyrometer control gear for gas firing , made by the Foster Instrument Com- pany of Letchworth . The ...
... temperature that can be obtained . 99 In this connection , of great interest are the latest designs of automatic electrically operated pyrometer control gear for gas firing , made by the Foster Instrument Com- pany of Letchworth . The ...
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