浮選法に関する研究〔第4報〕-懸垂板による個体浸潤度測定法-

• 資料種別: 記事
• タイトル: 浮選法に関する研究〔第4報〕-懸垂板による個体浸潤度測定法-
• 著者・編者: 和田 正美
• 著者標目: 和田 正美
• タイトル（掲載誌）: 東北大学選鉱製錬研究所彙報
• 巻号年月日等（掲載誌）: 6(1) 1950.09
• 掲載巻: 6
• 掲載号: 1
• 掲載ページ: 1～11
• 掲載年月日（W3CDTF）: 1950-09
• ISSN（掲載誌）: 0040-876X
• ISSN-L（掲載誌）: 0040-876X
• 出版事項（掲載誌）: 仙台 : 東北大学選鉱製錬研究所
• 出版地（国名コード）: JP
• 本文の言語コード: jpn
• NDLC: ZP41
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z17-359
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 10000590; http://id.ndl.go.jp/bib/10000590
• 整理区分コード: 632

• 要約等: application/pdf; After comparing critically various methods of measurement of wettability of solids, the author developed the suspended-plate method for the determination of wetting tension of solids. The wetting tension of a solid in a thin plate is measured directly, quickly and accurately by the following formula, the notations being explained in the text. B=γcosθ=g(W-M+eldρ)/2(l+d) For suspending the plate and weighing the force exerted upon it, a chemical balance with air dampers, the device for adding or removing the ring weights quickly and the telescope for reading weight smaller than 10 mg., is used and an electro-magnetic regulator is added to weigh with the pointer always in its zero position. The relation between the weight ω mg. exerted upon the balance and the deflection ψ of the pointer of the milliammeter indicating the current for balancing the weight is expressed as ω=0.258,6ψ^<1.945>. To contribute to the study of the wettability of pure minerals the wettability of glass, which is comparatively easy to clean, is measured. The method of cleaning in which glass is immersed in an ethyl alcohol solution of sodium hydroxide and then washed with distilled water, is found to be simple and yet very effective. The wetting tension of crystal glass against pure water is measured to be 71.97 dynes/cm. at 24.9℃, that is the contact angle is zero. For the fact that the glass surface shows the contact angles larger than zero, the following reasons may be mentioned : -Incomplete cleaning of the surface, Contamination with the passage of time, Drying of the surface, Measurement of advancing angles on dry surface, Surface strain, Measurement of the liquid surface apart from the solid surface in contact with the liquid, and Evaporation of the liquid.; 紀要類(bulletin); 1058531 bytes
• 作成日（W3CDTF）: 2008-05-02
• 関連情報（URI）: http://hdl.handle.net/10097/32018; https://tohoku.repo.nii.ac.jp/records/49812; http://id.ndl.go.jp/bib/10000590; https://ndlsearch.ndl.go.jp/books/R000000004-I10000590
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; CiNii Articles
• 書誌ID（NDLBibID）: 10000590; http://id.ndl.go.jp/bib/10000590
• NII論文ID: 110000202364