JPH04215065A - Iron ion detecting agent, iron ion detecting method, passivation detecting method, and plating detecting method - Google Patents
Iron ion detecting agent, iron ion detecting method, passivation detecting method, and plating detecting methodInfo
- Publication number
- JPH04215065A JPH04215065A JP2410289A JP41028990A JPH04215065A JP H04215065 A JPH04215065 A JP H04215065A JP 2410289 A JP2410289 A JP 2410289A JP 41028990 A JP41028990 A JP 41028990A JP H04215065 A JPH04215065 A JP H04215065A
- Authority
- JP
- Japan
- Prior art keywords
- iron ion
- detecting
- detecting method
- plating
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007747 plating Methods 0.000 title claims description 16
- 238000002161 passivation Methods 0.000 title abstract description 6
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 claims abstract description 13
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 claims abstract description 10
- -1 iron ion Chemical class 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000002562 thickening agent Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000012790 confirmation Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910017344 Fe2 O3 Inorganic materials 0.000 description 1
- 229910017368 Fe3 O4 Inorganic materials 0.000 description 1
- YNPNZTXNASCQKK-UHFFFAOYSA-N Phenanthrene Natural products C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- LNQCJIZJBYZCME-UHFFFAOYSA-N iron(2+);1,10-phenanthroline Chemical compound [Fe+2].C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1.C1=CN=C2C3=NC=CC=C3C=CC2=C1 LNQCJIZJBYZCME-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000000276 potassium ferrocyanide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XOGGUFAVLNCTRS-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide Chemical compound [K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] XOGGUFAVLNCTRS-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は鉄イオン検知剤、鉄イオ
ン検知方法、不動態及びメッキ検知方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron ion detection agent, a method for detecting iron ions, a method for detecting passivity and plating.
【０００２】0002
【従来の技術】例えばステンレス等の鉄鋼に形成したメ
ッキ被膜を確認する方法としてフェロキシル試験があり
、これは被膜にフェロシアン化カリウム及びフェリシア
ン化カリウムを主成分とする試験液を塗布し、被膜に孔
がある場合メッキ下地の鉄イオンが試験液と反応して青
色の生成物が生じることを利用してメッキ被膜の有孔度
を調べる方法である。また、例えばステンレス等の鉄鋼
の不動態化被膜の形成を確認する方法としては孔食電位
を測定する方法、塩水噴霧テストを長時間行い、錆の発
生時間から推定する方法、試験片を硫酸銅、硫酸及び水
からなる混合液に浸漬するか又は試験片に前記混合液を
塗布して銅が析出するかどうかを調べる方法等がある。[Prior Art] For example, there is a ferroxyl test as a method for checking the plating film formed on steel such as stainless steel.This test involves applying a test solution containing potassium ferrocyanide and potassium ferricyanide as main components to the film, and detecting holes in the film. In this method, the porosity of the plating film is determined by utilizing the fact that iron ions in the plating base react with the test solution to produce a blue product. For example, methods for confirming the formation of a passivation film on steel such as stainless steel include a method of measuring pitting potential, a method of performing a salt spray test for a long time and estimating the formation time of rust, and a method of testing the test piece using copper sulfate. There are methods such as immersing the test piece in a mixed solution of sulfuric acid and water or applying the mixed solution to the test piece to examine whether copper is precipitated.
【０００３】0003
【発明が解決しようとする課題】上述のフェロキシル試
験においては、試験液としてシアン化合物を使用するの
で危険であり、試験後の廃液処理にも留意しなければな
らない。また、孔食電位測定法は孔食電位測定装置を用
いて試験片を作製したのちに測定するので煩雑であり、
実用品については測定できないという致命的な欠点があ
った。塩水噴霧テストを行う方法も同様である。また、
硫酸銅、硫酸及び水からなる混合液を使用する方法は、
明確に銅の析出を判別することができないという問題が
あった。[Problems to be Solved by the Invention] In the above-mentioned ferroxyl test, cyanide compounds are used as the test liquid, which is dangerous, and care must also be taken to dispose of the waste liquid after the test. In addition, the pitting potential measuring method is complicated because it is measured after preparing a test piece using a pitting potential measuring device.
It had the fatal drawback of not being able to measure practical products. The method for conducting the salt spray test is similar. Also,
A method using a mixture of copper sulfate, sulfuric acid and water is
There was a problem in that copper precipitation could not be clearly determined.
【０００４】本発明は斯かる事情に鑑みなされたもので
あり、１，１０−フェナントロリン、パソフェナントロ
リン、２，２′−ビピリジルのうち少なくとも１つを含
み、その濃度が０．０００２〜０．０１Ｍである検知剤
を用いることにより、複雑な装置を使用せずに安全で簡
易に試験を実施でき、実用品についても検知できる鉄イ
オン検知方法、不動態検知方法及びメッキ検知方法を提
供することを目的とする。The present invention has been made in view of the above circumstances, and contains at least one of 1,10-phenanthroline, pasophenanthroline, and 2,2'-bipyridyl, and has a concentration of 0.0002 to 0.01M. We aim to provide an iron ion detection method, a passive state detection method, and a plating detection method that can be safely and easily tested without using complicated equipment by using a detection agent that is purpose.
【０００５】[0005]
【課題を解決するための手段】第１発明の鉄イオン検知
剤は、１，１０−フェナントロリン、パソフェナントロ
リン又は２，２′−ビピリジルのうち少なくとも１つを
含み、その濃度が０．０００２〜０．０１Ｍであること
を特徴とする。
第２発明は、１，１０−フェナントロリン、パソフェナ
ントロリン又は２，２′−ビピリジルのうち少なくとも
１つを含み、その濃度が０．０００２〜 ０．０１Ｍ
である検知剤を用いて金属表面に存在する鉄イオンを検
知することを特徴とする。
第３発明は、１，１０−フェナントロリン、パソフェナ
ントロリン、２，２′−ビピリジルのうち少なくとも１
つを含み、その濃度が０．０００２〜 ０．０１Ｍで
ある検知剤を用いて金属表面の不動態化されている部分
と不動態化されていない部分とを識別することを特徴と
する。
第４発明は、１，１０−フェナントロリン、パソフェナ
ントロリン又は ２，２′−ビピリジルのうち少なく
とも１つを含み、その濃度が０．０００２〜０．０１Ｍ
である検知剤を用いて金属表面のメッキ被膜されている
部分とメッキ被膜されていない部分とを識別することを
特徴とする。
第５発明の鉄イオン検知剤は、増粘剤を添加して粘着性
を付与したことを特徴とする。[Means for Solving the Problems] The iron ion detecting agent of the first invention contains at least one of 1,10-phenanthroline, pasophenanthroline, or 2,2'-bipyridyl, and has a concentration of 0.0002 to 0. It is characterized by being .01M. The second invention contains at least one of 1,10-phenanthroline, pasophenanthroline, or 2,2'-bipyridyl, and the concentration thereof is 0.0002 to 0.01M.
It is characterized by detecting iron ions present on the metal surface using a detection agent. The third invention provides at least one of 1,10-phenanthroline, pasophenanthroline, and 2,2'-bipyridyl.
The present invention is characterized in that the passivated portion and the non-passivated portion of the metal surface are discriminated using a detecting agent having a concentration of 0.0002 to 0.01M. The fourth invention contains at least one of 1,10-phenanthroline, pasophenanthroline, or 2,2'-bipyridyl, and the concentration thereof is 0.0002 to 0.01M.
The method is characterized in that it uses a detection agent to distinguish between plated parts and non-plated parts of metal surfaces. The iron ion detecting agent of the fifth invention is characterized in that a thickener is added to impart tackiness.
【０００６】[0006]
【作用】本発明に係る鉄イオン検知剤に被検体を浸漬又
は被検体にこれを塗布すると、被検体に鉄イオンが存在
する場合、その部分が赤橙色に発色する。本発明に係る
鉄イオン検知剤中に含有されるフェナントロリンと鉄（
ＩＩ）とは次式（１）のように反応して非常に安定なキ
レートイオンが生成され、これが赤橙色を呈する。
〔Ｆｅ（ Ｈ２ Ｏ）６〕２＋＋３ｐｈｅ
ｎ→〔Ｆｅ（ｐｈｅｎ）３〕２＋
＋６Ｈ２ Ｏ …（１）
但し、ｐｈｅｎ；フェナントロリン２，２′−
ビピリジルを鉄イオン検知剤中に含有する場合も式（１
）と同様に鉄（ＩＩ）と反応して赤橙色のキレートイオ
ンが生じる。検知剤の主成分濃度を０．０００２〜０．
０１Ｍにしているのは、濃度が０．０００２Ｍ以下であ
ると発色が薄く、目視判定が困難であり、濃度が０．０
１Ｍを越えると主成分自体の溶解が困難であるためであ
る。[Operation] When a subject is immersed in or applied to the iron ion detecting agent according to the present invention, if iron ions are present in the subject, the portion thereof develops a reddish-orange color. Phenanthroline and iron (
II) reacts with the following formula (1) to produce a very stable chelate ion, which exhibits a reddish-orange color. [Fe(H2O)6]2++3phe
n→[Fe(phen)3]2+
+6H2 O…(1)
However, phen; phenanthroline 2,2'-
When bipyridyl is contained in the iron ion detection agent, the formula (1
), it reacts with iron(II) to produce reddish-orange chelate ions. The main component concentration of the detection agent is 0.0002 to 0.
The reason why the concentration is 0.01M is because if the concentration is less than 0.0002M, the color will be weak and it will be difficult to judge visually.
This is because if it exceeds 1M, it is difficult to dissolve the main component itself.
【０００７】例えばステンレス等の鉄鋼の表面を不動態
化させるとＦｅ２ Ｏ３ 又はＦｅ３ Ｏ４ が生成さ
れ、鉄（ＩＩ）イオンにはなりにくく、本発明に係る鉄
イオン検知剤とは反応しないので、検知剤を使用して金
属表面の不動態化されている部分と不動態化されていな
い部分とを識別することができる。また、本発明に係る
鉄イオン検知剤を使用することにより、金属表面にメッ
キ処理を施した場合、メッキ不良部には鉄イオンが存在
することを利用してメッキ被膜の形成の有無を確認する
ことができる。そして、本発明に係る鉄イオン検知剤に
増粘剤を添加して粘着性を付与することにより、不動態
化処理及びメッキ処理の不良部から検知剤が流れ落ちな
いようにすることもできる。[0007] For example, when the surface of steel such as stainless steel is passivated, Fe2 O3 or Fe3 O4 is generated, which is difficult to convert into iron (II) ions and does not react with the iron ion detection agent according to the present invention, so it is difficult to detect. Agents can be used to distinguish between passivated and unpassivated portions of a metal surface. Furthermore, by using the iron ion detection agent according to the present invention, when a metal surface is plated, the presence or absence of a plating film can be confirmed by taking advantage of the fact that iron ions are present in areas with poor plating. be able to. By adding a thickener to the iron ion detecting agent according to the present invention to impart tackiness, it is possible to prevent the detecting agent from flowing down from defective areas of passivation treatment and plating treatment.
【０００８】[0008]
【実施例】以下、本発明をその実施例に基づき具体的に
説明する。本発明に係る鉄イオン検知剤は１，１０−フ
ェナントロリン、パソフェナントロリン、２，２′−ビ
ピリジルのうち少なくとも１つを含み、その濃度が０．
０００２〜０．０１Ｍになるようにし、例えば硫酸、硝
酸、塩酸等を用いて０．０１Ｎの酸性水溶液に調製する
。ｐＨは、２．５８である。酸性水溶液にするのは主成
分が有機物なので中性の水溶液にはあまり溶けないが、
酸性水溶液には溶けやすいためである。このとき予めエ
タノールに溶解させることにしてもよい。酸濃度を０．
０１Ｎにしたのは、ｐＨ２．５ 以下ではフェナントロ
リンが鉄（ＩＩ）と反応しにくいためである。EXAMPLES The present invention will be specifically explained below based on examples. The iron ion detecting agent according to the present invention contains at least one of 1,10-phenanthroline, pasophenanthroline, and 2,2'-bipyridyl, and has a concentration of 0.
0002 to 0.01M, and prepare a 0.01N acidic aqueous solution using, for example, sulfuric acid, nitric acid, hydrochloric acid, or the like. pH is 2.58. The reason why it is made into an acidic aqueous solution is because the main component is organic, so it is not very soluble in a neutral aqueous solution.
This is because it is easily soluble in acidic aqueous solutions. At this time, it may be dissolved in ethanol in advance. The acid concentration was set to 0.
The reason why 01N was used is that phenanthroline does not easily react with iron (II) at pH 2.5 or lower.
【０００９】（実施例１）
ＳＵＳ３０４のテストピース（５０Ｗ×１００Ｌ×３Ｔ
）について＃４００のバフ研磨をし、その半分を温度６
０℃の４０％硝酸溶液に１時間浸漬して不動態化処理を
行った。その後、この試験片に本発明に係る検知剤をス
プレーしたところ、不動態化していない部分は赤橙色に
発色し、明確に不動態化されている部分と不動態化され
ていない部分を識別することができた。(Example 1) SUS304 test piece (50W x 100L x 3T
) was buffed with #400 and half of it was heated to temperature 6.
Passivation treatment was performed by immersing it in a 40% nitric acid solution at 0° C. for 1 hour. After that, when this test piece was sprayed with the detection agent according to the present invention, the unpassivated area developed a reddish-orange color, clearly distinguishing between the passivated area and the unpassivated area. I was able to do that.
【００１０】（実施例２）
純チタン、アルミニウム、銅及び鋳鉄のテストピース（
５０Ｗ×１００Ｌ×３Ｔ）夫々に本発明に係る検知剤を
スプレーしたところ、鋳鉄のみに発色が認められた。
これにより本発明に係る検知剤は鉄イオンのみに反応す
ることが実証できた。(Example 2) Pure titanium, aluminum, copper and cast iron test pieces (
When the detection agent according to the present invention was sprayed on each of the test pieces (50W x 100L x 3T), color development was observed only on the cast iron. This demonstrated that the detection agent according to the present invention reacts only with iron ions.
【００１１】（実施例３）
沖アミ用１２号釣り針（炭素鋼素材上にＮｉメッキをし
、さらに金フラッシュメッキをしたもの）に、本発明に
係る検知剤にＳｉＯ２ パウダーを７％添加して粘着性
を付与したものを塗布したところ、針の返り部分の裏側
に発色がみられ、メッキ不良を検出することができた。(Example 3) 7% SiO2 powder was added to the detection agent according to the present invention to a No. 12 fishing hook for offshore fishing (a carbon steel material plated with Ni and further flash plated with gold). When the adhesive was applied, color development was observed on the back side of the curved part of the needle, and it was possible to detect a plating defect.
【００１２】（実施例４）
ルアー用４号トリプルフック（炭素鋼素材上にＮｉメッ
キをし、さらに錫メッキをしたもの）に実施例３の本発
明に係る検知剤の増粘液を塗布したところ、根本部分に
発色がみられ、メッキ不良を検出することができた。上
述した如く、本発明に係る検知剤により鉄イオンを検知
することができ、これにより不動態化処理又はメッキ処
理をした後にその確認を行うことができることが判る。(Example 4) A No. 4 triple hook for lures (carbon steel material plated with Ni and further plated with tin) was coated with the thickening liquid of the detection agent according to the present invention of Example 3. , Color development was observed at the root part, and it was possible to detect a plating defect. As described above, it is possible to detect iron ions using the detection agent according to the present invention, and it is therefore understood that this can be confirmed after passivation treatment or plating treatment.
【００１３】[0013]
【発明の効果】以上の如く、本発明においては１，１０
−フェナントロリン、パソフェナントロリン、２，２′
−ビピリジルのうち少なくとも１つを含み、その濃度が
０．０００２〜０．０１Ｍである検知剤を用いるので、
複雑な装置を使用せずに安全で簡易に試験を実施でき、
実用品についても鉄イオンを検知することができる。そ
して、本発明に係るイオン検知剤を使用して、金属表面
の不動態化の有無の確認及びメッキ被膜の形成の有無の
確認を行うこともできる。また、清酒業界ではその製造
工程で鉄イオンが混入すると清酒が着色し、味覚にも影
響するので極度に嫌悪され、製造工程で使用されるステ
ンレス等の製造設備は受け入れ検査が厳しく行われてお
り、その検査は安全、簡易なものではなかったが、この
ような検査にも本発明に係る鉄イオン検知方法を適用す
ることができる等、本発明は優れた効果を奏するもので
ある。Effects of the Invention As described above, in the present invention, 1,10
-phenanthroline, pasophenanthroline, 2,2'
- Since a detection agent containing at least one of bipyridyl and having a concentration of 0.0002 to 0.01M is used,
Tests can be conducted safely and easily without the use of complicated equipment.
Iron ions can also be detected in practical products. Using the ion detection agent according to the present invention, it is also possible to check whether a metal surface is passivated or not, and whether a plating film is formed. Additionally, in the sake industry, if iron ions are mixed in during the manufacturing process, it will color the sake and affect its taste, so it is highly disliked, and the manufacturing equipment used in the manufacturing process, such as stainless steel, is subject to strict acceptance inspections. Although the test was not safe or simple, the present invention has excellent effects such as the iron ion detection method according to the present invention can be applied to such tests as well.
Claims (5)
ェナントロリン又は２，２′−ビピリジルのうち少なく
とも１つを含み、その濃度が０．０００２〜０．０１Ｍ
である鉄イオン検知剤。Claim 1: Contains at least one of 1,10-phenanthroline, pasophenanthroline, or 2,2'-bipyridyl, and has a concentration of 0.0002 to 0.01M
An iron ion detection agent.
て金属表面に存在する鉄イオンを検知することを特徴と
する鉄イオン検知方法。2. An iron ion detection method, comprising detecting iron ions present on a metal surface using the iron ion detection agent according to claim 1.
て金属表面の不動態化されている部分と不動態化されて
いない部分とを識別することを特徴とする不動態検知方
法。3. A method for detecting passivity, which comprises using the iron ion detecting agent according to claim 1 to discriminate between a passivated portion and a non-passivated portion of a metal surface.
て金属表面のメッキ被膜されている部分とメッキ被膜さ
れていない部分とを識別することを特徴とするメッキ検
知方法。4. A method for detecting plating, which comprises using the iron ion detecting agent according to claim 1 to distinguish between parts of a metal surface that are coated with a plating film and parts that are not coated with a plating film.
とを特徴とする請求項１記載の鉄イオン検知剤。5. The iron ion detecting agent according to claim 1, wherein a thickener is added to impart tackiness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410289A JP2867076B2 (en) | 1990-12-11 | 1990-12-11 | Passivation detection method and plating detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410289A JP2867076B2 (en) | 1990-12-11 | 1990-12-11 | Passivation detection method and plating detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04215065A true JPH04215065A (en) | 1992-08-05 |
| JP2867076B2 JP2867076B2 (en) | 1999-03-08 |
Family
ID=18519473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2410289A Expired - Fee Related JP2867076B2 (en) | 1990-12-11 | 1990-12-11 | Passivation detection method and plating detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2867076B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216232A (en) * | 2007-02-28 | 2008-09-18 | Tohoku Univ | Method for detecting occurrence of stress corrosion cracking, pitting corrosion and the like |
| JP2009162656A (en) * | 2008-01-08 | 2009-07-23 | Toshiba Corp | Method for detecting transition metal containing foreign substance |
| JP2011058881A (en) * | 2009-09-08 | 2011-03-24 | Sumitomo Metal Mining Co Ltd | Simple analysis method of iron contained in dust and inspection kit |
| JP2012149109A (en) * | 2011-01-17 | 2012-08-09 | Jfe Steel Corp | Anticorrosive coating material and coated steel stock |
| JP2015137899A (en) * | 2014-01-21 | 2015-07-30 | 株式会社Ihi | Inspection method of stainless steel member, and manufacturing method of stainless steel product |
| JP2015148542A (en) * | 2014-02-07 | 2015-08-20 | 日本ペイント・サーフケミカルズ株式会社 | Film formation state evaluation liquid of metal material, and film formation state evaluation method using the same |
-
1990
- 1990-12-11 JP JP2410289A patent/JP2867076B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216232A (en) * | 2007-02-28 | 2008-09-18 | Tohoku Univ | Method for detecting occurrence of stress corrosion cracking, pitting corrosion and the like |
| JP2009162656A (en) * | 2008-01-08 | 2009-07-23 | Toshiba Corp | Method for detecting transition metal containing foreign substance |
| JP2011058881A (en) * | 2009-09-08 | 2011-03-24 | Sumitomo Metal Mining Co Ltd | Simple analysis method of iron contained in dust and inspection kit |
| JP2012149109A (en) * | 2011-01-17 | 2012-08-09 | Jfe Steel Corp | Anticorrosive coating material and coated steel stock |
| JP2015137899A (en) * | 2014-01-21 | 2015-07-30 | 株式会社Ihi | Inspection method of stainless steel member, and manufacturing method of stainless steel product |
| JP2015148542A (en) * | 2014-02-07 | 2015-08-20 | 日本ペイント・サーフケミカルズ株式会社 | Film formation state evaluation liquid of metal material, and film formation state evaluation method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2867076B2 (en) | 1999-03-08 |
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