Chemical News and Journal of Industrial Science, Tomy 127-128Chemical news office., 1923 |
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Strona 12
... lead chromate by the interaction of lead acetate and potassium chromate or dichromate . Stratified precipi- tates resulted from this reaction when a 5 per cent . solution of potassium dichromate diffused into a 1 per cent . agar gel ...
... lead chromate by the interaction of lead acetate and potassium chromate or dichromate . Stratified precipi- tates resulted from this reaction when a 5 per cent . solution of potassium dichromate diffused into a 1 per cent . agar gel ...
Strona 13
... lead chromate is a unique case , or whether the effect is a general one , and further to determine whether the influence of the light could be attributed to a change in the rate of nucleus formation in the precipitation process . Two ...
... lead chromate is a unique case , or whether the effect is a general one , and further to determine whether the influence of the light could be attributed to a change in the rate of nucleus formation in the precipitation process . Two ...
Strona 22
... lead glass . It was found that the apparently dry dry salt had an appre- ciable action on the glass , and that the action increased rapidly as moisture was absorbed . Both lead and arsenic were found in potassium carbonate that had been ...
... lead glass . It was found that the apparently dry dry salt had an appre- ciable action on the glass , and that the action increased rapidly as moisture was absorbed . Both lead and arsenic were found in potassium carbonate that had been ...
Strona 28
... lead and provided with an air blast and outlets for the spent chemi- cals and treated oils . These agitators hold from 50,000 to 150,000 gallons of oil at one charge . Concentrated sulphuric acid is thoroughly mixed with the oil by ...
... lead and provided with an air blast and outlets for the spent chemi- cals and treated oils . These agitators hold from 50,000 to 150,000 gallons of oil at one charge . Concentrated sulphuric acid is thoroughly mixed with the oil by ...
Strona 35
... lead arsenate , which have been standardised and found reliable for many years , have constituted the principal insecticides used against external chewing insects . However , during the past few years , the use of calcium arsenate has ...
... lead arsenate , which have been standardised and found reliable for many years , have constituted the principal insecticides used against external chewing insects . However , during the past few years , the use of calcium arsenate has ...
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