翻訳と辞書 Words near each other ・ Wet Paint (film) ・ Wet Palms ・ Wet Planet Beverages ・ Wet process ・ Wet processing engineering ・ Wet rock physa ・ Wet Salt ・ Wet sari scene ・ Wet scrubber ・ Wet Seal ・ Wet season ・ Wet Set Magazine ・ Wet Sleddale Horseshoe ・ Wet Sleddale Reservoir ・ Wet stacking ・ Wet storage stain ・ Wet strength ・ Wet sub ・ Wet Suit (G.I. Joe) ・ Wet sulfuric acid process ・ Wet sump ・ Wet T-shirt contest ・ Wet Tha Dote Htoe ・ Wet the Bed ・ Wet Tropics of Queensland ・ Wet walnuts ・ WET Web Tester ・ Wet Weekend ・ Wet Wet Wet ・ Wet Wet Wet discography Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Wet storage stain ： ウィキペディア英語版 Wet storage stain Wet storage stain, more commonly known as white rust or white corrosion, is a type of zinc corrosion. It is called wet storage stain because it occurs when a fresh zinc surface is stored in a wet environment with limited oxygen and carbon dioxide sources; the restriction in air is usually due to the items being stacked on one another or otherwise stored in close quarters. This type of corrosion does not usually occur to zinc surfaces that have had time to form their normal layers of corrosion protection.〔.〕 ==Chemistry== Wet storage stain is a white, crumbly, and porous substance that is a mixture of three chemical compounds: 2ZnCO3·3Zn(OH)2, ZnO, and β-Zn(OH)2. Underneath the white coating is usually a dark gray surface. The corrosion product is very voluminous; it is approximately 100 times greater in volume than the zinc consumed. Because of this the corrosion is not usually detrimental to the usability of the item, unless the zinc surface is only a thin coating, such as zinc electroplating.〔〔.〕 Wet storage stain only occurs in situations where there is a lack of oxygen or carbon dioxide, because it usually forms zinc oxide and zinc hydroxide in open air environments. These oxides are usually present on zinc surfaces, but do not protect them from wet storage stain because they are only loosely adherent to the surface and any moisture can attack the oxides from underneath. Also, chlorides and sulfates accelerate the formation of corrosion.〔〔.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wet storage stain」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.