Chemical News and Journal of Industrial Science, Tomy 117-118Chemical news office., 1918 |
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Strona 2
... amount of black powder was never very large , and was mainly antimony . Finally , possibly the most likely source of error in tin examinations is due to imperfect solution ef the metal . Particularly is this the case when the filings ...
... amount of black powder was never very large , and was mainly antimony . Finally , possibly the most likely source of error in tin examinations is due to imperfect solution ef the metal . Particularly is this the case when the filings ...
Strona 24
... amount of Nitrogen in Oxidised Coals . - P . Mahler . Coal always contains a certain amount , varying from 0.7 to 25 per cent , of nitrogen . Samples of oxidised coal from Decazeville were analysed , and it was found that the percentage ...
... amount of Nitrogen in Oxidised Coals . - P . Mahler . Coal always contains a certain amount , varying from 0.7 to 25 per cent , of nitrogen . Samples of oxidised coal from Decazeville were analysed , and it was found that the percentage ...
Strona 25
... amount to permit the extraction of lead at a profit . The " gangue " is the matrix of associated minerals in which the valuable mineral occurs , and must of necessity be mined from the ore body to recover the valuable mineral . The ...
... amount to permit the extraction of lead at a profit . The " gangue " is the matrix of associated minerals in which the valuable mineral occurs , and must of necessity be mined from the ore body to recover the valuable mineral . The ...
Strona 26
... amount of metal , other deposits show a rather wide variation in metal con- tent throughout their extent and the value of the ore as mined varies . In working deposits of this kind a certain mimimum metal content that the ore must ...
... amount of metal , other deposits show a rather wide variation in metal con- tent throughout their extent and the value of the ore as mined varies . In working deposits of this kind a certain mimimum metal content that the ore must ...
Strona 28
... amount of silica there is formed on incipient fusion a large amount of a low - melting eutectic , which , when it attains a sufficiently low viscosity , causes the test piece to soften visibly and deform . It is undoubtedly true that ...
... amount of silica there is formed on incipient fusion a large amount of a low - melting eutectic , which , when it attains a sufficiently low viscosity , causes the test piece to soften visibly and deform . It is undoubtedly true that ...
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