Chemical News and Journal of Industrial Science, Tomy 109-110Chemical news office., 1914 |
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Strona 29
... cent . 19'20 10'12 .. 10'33 20'41 .. It will be noticed that the crude fibre is very high in the first and last case and somewhat excessive in the other two . This is produced to some extent by the fibrous layer on the caps of the ...
... cent . 19'20 10'12 .. 10'33 20'41 .. It will be noticed that the crude fibre is very high in the first and last case and somewhat excessive in the other two . This is produced to some extent by the fibrous layer on the caps of the ...
Strona 38
... cent solution of chemically pure NaOH . As soon as the solution is clear filter it and wash with hot water till the last trace of alkali is removed . Dissolve the residue in warm HCl ( 1 : 1 ) , and wash the filter - paper with hot ...
... cent solution of chemically pure NaOH . As soon as the solution is clear filter it and wash with hot water till the last trace of alkali is removed . Dissolve the residue in warm HCl ( 1 : 1 ) , and wash the filter - paper with hot ...
Strona 42
... cent in an hour . The mixture which separates on cooling contains about 70 per cent of compound ( I. ) and substance can , however , easily be obtained by crystallising from benzene with animal charcoal , although in the 30 per cent of ...
... cent in an hour . The mixture which separates on cooling contains about 70 per cent of compound ( I. ) and substance can , however , easily be obtained by crystallising from benzene with animal charcoal , although in the 30 per cent of ...
Strona 49
... cent KHO to Neutralise ) . 45'1 I'I 46.8 1'7 2.8 45'4 1.2 46.8 I'4 2.6 45'4 I'2 47'0 1.6 2.8 45'5 I'2 46'9 1'4 2.6 Sample II . - Contains Free Fatty Acids , 113 per cent . 41.2 4.8 48.4 41.6 5'0 48.0 41'4 3.8 48.4 7.2 6.4 סי 7 12'0 11'4 ...
... cent KHO to Neutralise ) . 45'1 I'I 46.8 1'7 2.8 45'4 1.2 46.8 I'4 2.6 45'4 I'2 47'0 1.6 2.8 45'5 I'2 46'9 1'4 2.6 Sample II . - Contains Free Fatty Acids , 113 per cent . 41.2 4.8 48.4 41.6 5'0 48.0 41'4 3.8 48.4 7.2 6.4 סי 7 12'0 11'4 ...
Strona 60
... cent solution of potassium Helium by Electric Discharge . " chromate are added , and the same quantity to 100 cc . of distilled water containing , say , 5 mgrms . of NaCl per litre . Standard silver nitrate solution is then added to the ...
... cent solution of potassium Helium by Electric Discharge . " chromate are added , and the same quantity to 100 cc . of distilled water containing , say , 5 mgrms . of NaCl per litre . Standard silver nitrate solution is then added to the ...
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absorption acetate action active alcohol alkali alloy aluminium ammonium amount analysis anode apparatus aqueous atomic weight B.Sc benzene carbon dioxide cent Chem chemical Chemistry chloride colloidal colour compounds concentration containing copper crystallised curves D.Sc derivatives determined dilute dissolved distilled electric electrolyte electrons equation esters experiments formation formic acid gases gives glass heat Hedychium hydrochloric acid hydrogen hydroxide increase investigation iodide iodine ions iron liquid lithium perchlorate melting metal method methyl mixture molecular molecules nitrate nitric acid nitrogen observed obtained ordinary oxalic oxalic acid oxide oxygen paper passive phenol polarisation potassium precipitate present pressure Prof quantity radium rays reaction reagent residue rotation rotatory power salt shown silver Society sodium soluble solution solvent substances sulphate sulphide sulphuric acid surface tartaric acid temperature theory tion Trans tube ultra-violet vapour velocity volume W. H. PERKIN ΙΟ