Chemical News and Journal of Industrial Science, Tomy 123-124Chemical news office., 1921 |
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Strona 7
... prepared under the auspices of a body of analysts in order to meet a long - felt need in settling dis- putes as to the amount of phosphorus , sulphur , & c . , in the purer varieties of hematite iron , as explained in a paper in the ...
... prepared under the auspices of a body of analysts in order to meet a long - felt need in settling dis- putes as to the amount of phosphorus , sulphur , & c . , in the purer varieties of hematite iron , as explained in a paper in the ...
Strona 13
... preparation of organic com- pounds . This part includes 66 experiments , and the author has marked the most important of them with an asterisk ; that is to say , students who are not taking chemistry as a profession but must have a ...
... preparation of organic com- pounds . This part includes 66 experiments , and the author has marked the most important of them with an asterisk ; that is to say , students who are not taking chemistry as a profession but must have a ...
Strona 21
... preparation consists of the reduction of 3,5 - dinitro - 4 - hydroxy - phenyl - arsinic acid by means of sodium hydrosulphite . same compound has been prepared by us accord- ing to the following procedure . The Twenty g . of 3,5 ...
... preparation consists of the reduction of 3,5 - dinitro - 4 - hydroxy - phenyl - arsinic acid by means of sodium hydrosulphite . same compound has been prepared by us accord- ing to the following procedure . The Twenty g . of 3,5 ...
Strona 29
... prepared pulp in this country at £ 9 to £ 10 , and mechanically- prepared , or ground wood - pulp , at £ 5 10s . to £ 6 per dry ton , and newsprint paper could be pro- duced for a penny per pound . Now values are four to five times ...
... prepared pulp in this country at £ 9 to £ 10 , and mechanically- prepared , or ground wood - pulp , at £ 5 10s . to £ 6 per dry ton , and newsprint paper could be pro- duced for a penny per pound . Now values are four to five times ...
Strona 40
... preparing phenylurethanes of terpenic alcohols , to employ as agent of dilution boiling petroleum , at 170 ° to 200 ° C. , and work during boiling . Phenylurethane crystallises in cooling . He thus prepared borneol phenylurethanes ...
... preparing phenylurethanes of terpenic alcohols , to employ as agent of dilution boiling petroleum , at 170 ° to 200 ° C. , and work during boiling . Phenylurethane crystallises in cooling . He thus prepared borneol phenylurethanes ...
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