Chemical News and Journal of Physical Science, Tom 83Chemical news office., 1901 |
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Strona 3
... heated tube , or on cold porcelain , as above stated . The following precautions , however , are necessary to obtain all the arsenic as sulphide in the heated tube . To add the solution under examination slowly and in small quantities ...
... heated tube , or on cold porcelain , as above stated . The following precautions , however , are necessary to obtain all the arsenic as sulphide in the heated tube . To add the solution under examination slowly and in small quantities ...
Strona 62
... heated too strongly , long before solidification takes place , the mass is quite white again . On re - heating the salt the colour again appears , and with care this can be repeated a great number of times . As , however , heating in ...
... heated too strongly , long before solidification takes place , the mass is quite white again . On re - heating the salt the colour again appears , and with care this can be repeated a great number of times . As , however , heating in ...
Strona 304
... heated above 160 ° C. it seemed reasonable to expect that sulphuric acid heated above 160 ° C. would completely absorb methyl ether . This is the case , and the product so obtained gives a com- paratively large yield of the alkyl ...
... heated above 160 ° C. it seemed reasonable to expect that sulphuric acid heated above 160 ° C. would completely absorb methyl ether . This is the case , and the product so obtained gives a com- paratively large yield of the alkyl ...
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