JP5305498B2 - ニッケルまたはニッケル合金めっき層の定量分析方法 - Google Patents
ニッケルまたはニッケル合金めっき層の定量分析方法 Download PDFInfo
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(1) 銅または黄銅からなる基材に、ニッケルまたはニッケル合金からなるめっき層を形成してなる試料、もしくは金属製の基材に、銅または黄銅からなる下地層を介して、ニッケルまたはニッケル合金からなるめっき層を形成してなる試料における前記めっき層の定量分析方法であって、
硫酸を13〜14質量部、硝酸を9〜10質量部、リン酸を0.5〜9質量部、酢酸を5〜7質量部及び分散剤を0.1〜2質量部の割合で含み、かつ過酸化水素水を含む水溶液からなるめっき剥離液を前記試料に接触させて前記めっき層を溶解し、溶解分を含有する前記めっき剥離液について定量することを特徴とするニッケルまたはニッケル合金めっき層の定量分析方法。
(2)前記試料が電極または端子であることを特徴とする上記(1)記載のニッケルまたはニッケル合金めっき層の定量分析方法。
メルテックス株式会社製めっき剥離液「メルストリップN−950A」(硫酸16質量%、硝酸11質量%、リン酸1〜10質量%、残部水)500mL、メルテックス株式会社製めっき剥離液「メルストリップN−950B」(酢酸30〜40質量%、分散剤1〜10質量%、残部水)100mL、35%過酸化水素水100mL及び超純水300mLを混合してめっき剥離液を調製した。
硝酸と塩酸との混合液に実施例と同一の試験片を浸漬してニッケルめっき層を溶解し、ニッケルめっき層の溶解量が0.05g/25mLとなるように水で調整して試料を得た。そして、試料について、ICP−AESにより鉛、カドミウム及びクロムの含有量を、またCV−AASにより水銀の含有量をそれぞれ定量した。結果を表1に示す。
Claims (2)
- 銅または黄銅からなる基材に、ニッケルまたはニッケル合金からなるめっき層を形成してなる試料、もしくは金属製の基材に、銅または黄銅からなる下地層を介して、ニッケルまたはニッケル合金からなるめっき層を形成してなる試料における前記めっき層の定量分析方法であって、
硫酸を13〜14質量部、硝酸を9〜10質量部、リン酸を0.5〜9質量部、酢酸を5〜7質量部及び分散剤を0.1〜2質量部の割合で含み、かつ過酸化水素水を含む水溶液からなるめっき剥離液を前記試料に接触させて前記めっき層を溶解し、溶解分を含有する前記めっき剥離液について定量することを特徴とするニッケルまたはニッケル合金めっき層の定量分析方法。 - 前記試料が電極または端子であることを特徴とする請求項1記載のニッケルまたはニッケル合金めっき層の定量分析方法。
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JP5046963B2 (ja) * | 2008-01-10 | 2012-10-10 | 矢崎総業株式会社 | 銀めっき層の有害金属分析方法 |
JP5461055B2 (ja) * | 2009-04-27 | 2014-04-02 | 矢崎総業株式会社 | 金含有めっき層の回収方法及び分析方法 |
KR101873242B1 (ko) * | 2016-10-17 | 2018-07-04 | 주식회사 필머티리얼즈 | 전주도금 방식의 철-니켈 합금 박막에 대한 합금 비율 분석 방법 |
KR102218457B1 (ko) * | 2018-11-12 | 2021-02-19 | 주식회사 포스코 | 니켈도금강판 도금층 분석용 용해액 조성물 및 이를 이용한 니켈도금강판 도금층 분석방법 |
CN112323107B (zh) * | 2020-09-16 | 2022-09-13 | 歌尔科技有限公司 | 具有纳米稀土镍镀层的黄铜材料及其制备方法 |
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JPS61133389A (ja) * | 1984-11-30 | 1986-06-20 | Kizai Kk | ニッケルめっきの剥離液 |
JPH06322560A (ja) * | 1993-05-07 | 1994-11-22 | Okuno Chem Ind Co Ltd | ニッケル又はニッケル合金皮膜用剥離剤 |
JP3540887B2 (ja) * | 1996-02-26 | 2004-07-07 | 荏原ユージライト株式会社 | 選択的ニッケル剥離液およびこれを用いる剥離方法 |
JP2001123280A (ja) * | 1999-10-22 | 2001-05-08 | Kobe Steel Ltd | ニッケルめっき銅又は銅合金屑のリサイクル方法 |
JP2004052001A (ja) * | 2002-07-16 | 2004-02-19 | Mitsui Mining & Smelting Co Ltd | ニッケル剥離溶液及びそれを用いたニッケル系被覆層の剥離方法 |
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