An activity for hydrogen cyanide detection in bitter seeds is presented. The procedure is based on the absorption of hydrogen cyanide (HCN) from a mixture of chopped seeds into a ninhydrin or tetramminecopper(II) complex solution followed by their reaction. A qualitative experiment is proposed in order to demonstrate the presence of HCN in bitter seeds and to visualize metal–cyanide reduction and formation of an interesting mixed valence copper amino–cyanide complex: Cu3(NH3)4(CN)4.

Demonstrating the Presence of Cyanide in Bitter Seeds while Helping Students Visualize Metal–Cyanide Reduction and Formation in a Copper Complex Reaction

Volpi, Giorgio
2016-01-01

Abstract

An activity for hydrogen cyanide detection in bitter seeds is presented. The procedure is based on the absorption of hydrogen cyanide (HCN) from a mixture of chopped seeds into a ninhydrin or tetramminecopper(II) complex solution followed by their reaction. A qualitative experiment is proposed in order to demonstrate the presence of HCN in bitter seeds and to visualize metal–cyanide reduction and formation of an interesting mixed valence copper amino–cyanide complex: Cu3(NH3)4(CN)4.
2016
891
897
Volpi, Giorgio
File in questo prodotto:
File Dimensione Formato  
Cianuri-articolo.doc

Accesso aperto

Descrizione: manoscritto
Tipo di file: PREPRINT (PRIMA BOZZA)
Dimensione 12.66 MB
Formato Microsoft Word
12.66 MB Microsoft Word Visualizza/Apri
JCE_Cianuri_2016.pdf

Accesso riservato

Descrizione: articolo pubblicato
Tipo di file: PDF EDITORIALE
Dimensione 5.59 MB
Formato Adobe PDF
5.59 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1764341
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 9
social impact