Estimation of sound-velocity by the method of coincidences

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• Publisher: Elsevier Science
• Year: 1878
• Tongue: English
• Weight: 56 KB
• Volume: 105
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(78)90247-8

✦ Synopsis

Disaggregation of

Tin.--Organ-pipes, after long use, become brittle and fall to pieces. Oudemans stated (Ghem. Jahresber., 1872, p. 256) that plates of pure tin, which contain, at most, 0'8 per cent. of lead and iron, break into small fragments, like molybdenum-sulphide, in the railway transport from Rotterdam to Moscow, in severe cold weather. A similar phenomenon has been lately observed at the Royal Pyrotechnic Laboratory in Spandau. A large quantity of tin plates (295 kilogs.) became exfoliated and crumbled into small particles. Still later, larger quantities of Billeton block tin (1950 kilogs.)were similarly affected. The warehouses were thoroughly dry; the tin contained only traces of foreign metals, no sulphur or phosphorus, and no tin-oxide. According to Dr. Petri's account, the tin could be pulverized more easily than ordinary tin filings, and gave out hydrogen more quickly with acid. While it was in the warehouse there was no severe cold, yet the disaggrogation went on.--Ann, der Phys. u. Chem.

C.