A simple electrogravimetric experimental setup to determine Cu in alloy samples for teaching purposes
Electrogravimetry is a traditional analytical method for the determination of cations in aqueous solution, but the use of platinum as cathode and anode electrodes hinders its implementation in undergraduate chemistry courses with limited resources. This study proposes the replacement of expensive pl...
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| Veröffentlicht in: | Chemical papers 2021-02, Vol.75 (2), p.575-582 |
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| creator | Silva, João Pedro Irikura, Kallyni Zanoni, Maria Valnice Boldrin Lima Gomes, Paulo Clairmont F. |
| description | Electrogravimetry is a traditional analytical method for the determination of cations in aqueous solution, but the use of platinum as cathode and anode electrodes hinders its implementation in undergraduate chemistry courses with limited resources. This study proposes the replacement of expensive platinum electrodes by cheaper materials such as the dimensionally stable anode and Ni–Cr alloy as the cathode, which showed good performance in the determination of Cu by electrolysis at constant current (in galvanostatic mode). The proposed method achieved an electrogravimetric yield of 97.3 ± 0.9%, from a solution of CuSO
4
during electrolysis carried out at 0.26 A for 60 min. The experimental setup was used to determine Cu in commercial scrap alloy waste samples containing Cu, Sn, Pb, and Zn, following a simple pretreatment employing ammonia solution. The Cu weight percentage obtained was 58.6 ± 0.5%, which was in agreement with a value of 59.4 ± 1.7% obtained using a comparative spectrophotometric method.
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| doi_str_mv | 10.1007/s11696-020-01322-y |
| format | Article |
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4
during electrolysis carried out at 0.26 A for 60 min. The experimental setup was used to determine Cu in commercial scrap alloy waste samples containing Cu, Sn, Pb, and Zn, following a simple pretreatment employing ammonia solution. The Cu weight percentage obtained was 58.6 ± 0.5%, which was in agreement with a value of 59.4 ± 1.7% obtained using a comparative spectrophotometric method.
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4
during electrolysis carried out at 0.26 A for 60 min. The experimental setup was used to determine Cu in commercial scrap alloy waste samples containing Cu, Sn, Pb, and Zn, following a simple pretreatment employing ammonia solution. The Cu weight percentage obtained was 58.6 ± 0.5%, which was in agreement with a value of 59.4 ± 1.7% obtained using a comparative spectrophotometric method.
Graphic abstract</description><subject>Ammonia</subject><subject>Aqueous solutions</subject><subject>Biochemistry</subject><subject>Biotechnology</subject><subject>Cathodes</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Chemistry/Food Science</subject><subject>Copper</subject><subject>Dimensionally stable anodes</subject><subject>Electrodes</subject><subject>Electrolysis</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Lead</subject><subject>Materials Science</subject><subject>Medicinal Chemistry</subject><subject>Nickel chromium alloys</subject><subject>Original Paper</subject><subject>Platinum</subject><subject>Pretreatment</subject><subject>Quantitative analysis</subject><subject>Spectrophotometry</subject><subject>Tin</subject><issn>2585-7290</issn><issn>0366-6352</issn><issn>1336-9075</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kM1LxDAQxYMouOj-A54CnquTr7Y5LotfsOBl7yFtpmul29QkFfvf27WCN0_DDO-94f0IuWFwxwCK-8hYrvMMOGTABOfZdEZWTIg801Coc7LiqlRZwTVcknWMbQVSFoKXebEiuKGxPQ4dUuywTsEfgv1sj5hCW1P8GjDMS59sRyOmcaDJU4cJw7HtkW5H2vbUdp2faLSnlEgbH2hCW7-1_YEOYxh8xHhNLhrbRVz_ziuyf3zYb5-z3evTy3azy2oBRcoKDVoyrhpVo1WMVcgddyDrXMgKuGvyXAsN8x0rp6XWlS5toxvIrXLOiStyu8QOwX-MGJN592Po54-GyxKglIqVs4ovqjr4GAM2ZphL2jAZBuYE1CxAzQzU_AA102wSiynO4v6A4S_6H9c31uR7IQ</recordid><startdate>20210201</startdate><enddate>20210201</enddate><creator>Silva, João Pedro</creator><creator>Irikura, Kallyni</creator><creator>Zanoni, Maria Valnice Boldrin</creator><creator>Lima Gomes, Paulo Clairmont F.</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-1817-0019</orcidid></search><sort><creationdate>20210201</creationdate><title>A simple electrogravimetric experimental setup to determine Cu in alloy samples for teaching purposes</title><author>Silva, João Pedro ; Irikura, Kallyni ; Zanoni, Maria Valnice Boldrin ; Lima Gomes, Paulo Clairmont F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c307t-79094125f5cea511be2d2d04c634b02df6693901beebd9499b98af9f06a5ddd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Ammonia</topic><topic>Aqueous solutions</topic><topic>Biochemistry</topic><topic>Biotechnology</topic><topic>Cathodes</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Chemistry/Food Science</topic><topic>Copper</topic><topic>Dimensionally stable anodes</topic><topic>Electrodes</topic><topic>Electrolysis</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Lead</topic><topic>Materials Science</topic><topic>Medicinal Chemistry</topic><topic>Nickel chromium alloys</topic><topic>Original Paper</topic><topic>Platinum</topic><topic>Pretreatment</topic><topic>Quantitative analysis</topic><topic>Spectrophotometry</topic><topic>Tin</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Silva, João Pedro</creatorcontrib><creatorcontrib>Irikura, Kallyni</creatorcontrib><creatorcontrib>Zanoni, Maria Valnice Boldrin</creatorcontrib><creatorcontrib>Lima Gomes, Paulo Clairmont F.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Chemical papers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Silva, João Pedro</au><au>Irikura, Kallyni</au><au>Zanoni, Maria Valnice Boldrin</au><au>Lima Gomes, Paulo Clairmont F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A simple electrogravimetric experimental setup to determine Cu in alloy samples for teaching purposes</atitle><jtitle>Chemical papers</jtitle><stitle>Chem. Pap</stitle><date>2021-02-01</date><risdate>2021</risdate><volume>75</volume><issue>2</issue><spage>575</spage><epage>582</epage><pages>575-582</pages><issn>2585-7290</issn><issn>0366-6352</issn><eissn>1336-9075</eissn><abstract>Electrogravimetry is a traditional analytical method for the determination of cations in aqueous solution, but the use of platinum as cathode and anode electrodes hinders its implementation in undergraduate chemistry courses with limited resources. This study proposes the replacement of expensive platinum electrodes by cheaper materials such as the dimensionally stable anode and Ni–Cr alloy as the cathode, which showed good performance in the determination of Cu by electrolysis at constant current (in galvanostatic mode). The proposed method achieved an electrogravimetric yield of 97.3 ± 0.9%, from a solution of CuSO
4
during electrolysis carried out at 0.26 A for 60 min. The experimental setup was used to determine Cu in commercial scrap alloy waste samples containing Cu, Sn, Pb, and Zn, following a simple pretreatment employing ammonia solution. The Cu weight percentage obtained was 58.6 ± 0.5%, which was in agreement with a value of 59.4 ± 1.7% obtained using a comparative spectrophotometric method.
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| subjects | Ammonia Aqueous solutions Biochemistry Biotechnology Cathodes Chemistry Chemistry and Materials Science Chemistry/Food Science Copper Dimensionally stable anodes Electrodes Electrolysis Industrial Chemistry/Chemical Engineering Lead Materials Science Medicinal Chemistry Nickel chromium alloys Original Paper Platinum Pretreatment Quantitative analysis Spectrophotometry Tin |
| title | A simple electrogravimetric experimental setup to determine Cu in alloy samples for teaching purposes |
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