Chemical News and Journal of Physical Science, Tom 83Chemical news office., 1901 |
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Strona 258
... strong sulphuric acid . This strong acid was left in contact with the cellulose during twenty - four hours , and was then diluted to 3'5 per cent , and boiled and examined as before . 19 In this instance the liquor obtained from the ...
... strong sulphuric acid . This strong acid was left in contact with the cellulose during twenty - four hours , and was then diluted to 3'5 per cent , and boiled and examined as before . 19 In this instance the liquor obtained from the ...
Strona 282
... strong alcohol , a considerable quantity of sticky , gummy matter was left undissolved . In another trial 50 grms . of the cotton cloth were treated directly with 100 c.c. of sulphuric acid of go per cent H2SO4 , and the mixture was ...
... strong alcohol , a considerable quantity of sticky , gummy matter was left undissolved . In another trial 50 grms . of the cotton cloth were treated directly with 100 c.c. of sulphuric acid of go per cent H2SO4 , and the mixture was ...
Strona 292
... strong alcohol , in which much of it dissolved , left an insoluble residue which gave quasi- [ a ] = 88 ° . Having in view the well - known difficult solubility of anhydrous dextrose in strong alcohol , one or two experi- ments were ...
... strong alcohol , in which much of it dissolved , left an insoluble residue which gave quasi- [ a ] = 88 ° . Having in view the well - known difficult solubility of anhydrous dextrose in strong alcohol , one or two experi- ments were ...
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