Chemical News and Journal of Industrial Science, Tomy 125-126Chemical news office., 1923 |
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Strona 3
... described . in 4. Para Nitro Benzal Paratoluidin . Large quantities of chromyl chloride were . prepared by the method of Law and Per- kin , and paranitrobenzaldehyde by that of V. V. Richter . 76 75 Molecular quantities of the two sub ...
... described . in 4. Para Nitro Benzal Paratoluidin . Large quantities of chromyl chloride were . prepared by the method of Law and Per- kin , and paranitrobenzaldehyde by that of V. V. Richter . 76 75 Molecular quantities of the two sub ...
Strona 13
... described in the above paper by L. L. Steele ( Jour . Amer . Chem . Soc . , 1922 , p . 1333 ) . The sample , in small lumps , is boiled under reflux with 98 per cent . acetic acid for 2 hours , and the solution filtered while hot ...
... described in the above paper by L. L. Steele ( Jour . Amer . Chem . Soc . , 1922 , p . 1333 ) . The sample , in small lumps , is boiled under reflux with 98 per cent . acetic acid for 2 hours , and the solution filtered while hot ...
Strona 14
... described by L. Losana in Giornale di Chemica Industriale ed Applicata . 0.5 to 1.0 gm . of the metal is heated with caustic potash solution in a flask through which a current of air is drawn . The hydrogen evolved , according to the ...
... described by L. Losana in Giornale di Chemica Industriale ed Applicata . 0.5 to 1.0 gm . of the metal is heated with caustic potash solution in a flask through which a current of air is drawn . The hydrogen evolved , according to the ...
Strona 19
... described , the following procedure for the preparation of the pure compound was arrived at . This method , unlike any of the previous ones found in the literature , is complete as far as laboratory directions are concerned , will work ...
... described , the following procedure for the preparation of the pure compound was arrived at . This method , unlike any of the previous ones found in the literature , is complete as far as laboratory directions are concerned , will work ...
Strona 22
... described by previcus workers , it has been concluded that the thiazole structure is not a chromo- phore . 4. Of all the compounds given , only seven have characteristic odours , and only one has one which differs from what we should ...
... described by previcus workers , it has been concluded that the thiazole structure is not a chromo- phore . 4. Of all the compounds given , only seven have characteristic odours , and only one has one which differs from what we should ...
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