Chemical News and Journal of Industrial Science, Tomy 115-116Chemical news office., 1917 |
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Strona 1
... means for coping with the dye famine . The situation at present is much easier , but considerable leeway has stil to be made before our dye producers can hope to face Grman com- circumstances remarkable progress has been made . Dyes ...
... means for coping with the dye famine . The situation at present is much easier , but considerable leeway has stil to be made before our dye producers can hope to face Grman com- circumstances remarkable progress has been made . Dyes ...
Strona 4
... means of a hand hammer , and all the samples were finally annealed at 700 ° C. ( 1290 ° F. ) . Certain samples were heated to temperatures above 900 ° C. ( 1650 ° F. ) and hammered ; the temperature at which work ceased was estimated by ...
... means of a hand hammer , and all the samples were finally annealed at 700 ° C. ( 1290 ° F. ) . Certain samples were heated to temperatures above 900 ° C. ( 1650 ° F. ) and hammered ; the temperature at which work ceased was estimated by ...
Strona 7
... means of fused calcium bromide . During this process the boat was contained in a quartz tube which formed part of a " bottling apparatus . " As soon as the crystal water had evaporated from the salt , the tempera- ture was gradually ...
... means of fused calcium bromide . During this process the boat was contained in a quartz tube which formed part of a " bottling apparatus . " As soon as the crystal water had evaporated from the salt , the tempera- ture was gradually ...
Strona 22
... means of springs suitably connected to carbon rods which carry the specimen under test . Two simple forms of electrode construction are described . In one of them the current is carried by two copper tubes bent into a zig - zag form and ...
... means of springs suitably connected to carbon rods which carry the specimen under test . Two simple forms of electrode construction are described . In one of them the current is carried by two copper tubes bent into a zig - zag form and ...
Strona 24
... means of a weak alkali solution such as sodium acetate . a - Dibromo - phenylbutyric acid may be obtained by the action of sodium hypobromite upon the semicarbazone of benzylpyruvic acid and can be isolated owing to the slight ...
... means of a weak alkali solution such as sodium acetate . a - Dibromo - phenylbutyric acid may be obtained by the action of sodium hypobromite upon the semicarbazone of benzylpyruvic acid and can be isolated owing to the slight ...
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