Hello friends , I have aproblem with precipitating pt and pd from an aqua regia solution that I made from an ore near by ,
It is giving a colored indication of stannus chloride test so I didn't found any precipitation of au with sadium metabisupfite , so I tested with pt and pd precipitation . I did adding aluminium foil . So I ve got a brownish color powder precipitation ,
Can any one please guide me on this situation .
Thank you and good day
To precipitate platinum (Pt) and palladium (Pd) from an aqua regia solution, a common method involves adding a reducing agent like sodium chloride (NaCl) or ammonium chloride (NH4Cl) to the solution. This causes the platinum and palladium to form insoluble chlorides, which can then be separated by filtration. The precipitate is usually in the form of platinum or palladium chloride, and further steps can be taken to recover the pure metals. While performing such processes, it's important to stay connected for research updates and queries. GB WhatsApp APK can be a great tool to communicate with colleagues and share information.
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To precipitate platinum (Pt) and palladium (Pd) from an aqua regia solution, you can use a reducing agent like sodium chloride (NaCl) or ammonium chloride (NH4Cl). First, the aqua regia solution containing both metals is treated with a chloride source. This causes the formation of insoluble platinum and palladium chlorides, which can then be separated by filtration. After filtering, the metal chlorides can be further reduced to their metallic forms using hydrogen gas or another reducing agent. For precise calculations of chemicals or the amount of reagent needed, you can use a Calculators tool to assist with your measurements.
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kral suyunda çözdüğün paladyumu geri kazanmak için,öncelikle seyreltmelisin.
Çinko tozu ekleyip hızla karıştırmalısın.
bekletip karmaşık bir çökelti elde edeceksin.bunu HCL ile yeniden çözmelisin...
minimum nitrikasit eklemeli su kullamamalısın...
su yerine amonyumklorür bulundurmalısın.buna aşina olmalısın.
çöelti,ılık ortamda buharlaştırılmalı,yoğunlaşmalıdır. şimdi çözeltiden Cl Gazı geçirirsen,kırmızı paladyum tuzu elde edersin.
(CL GAZ,SODYUMKLORAT+HCL olabilir.kötü kokar,tehlikelidir)
yapabilirsin.
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It seems like you're facing difficulties with precipitating platinum (Pt) and palladium (Pd) from an aqua regia solution in PGM refining. A brownish powder precipitation typically suggests the presence of Pt or Pd. It's possible that other elements in the solution are interfering with the process. You may need to adjust the aluminum foil ratio, or consider using other methods like sodium chloride or ammonium chloride for better separation of platinum and palladium. If the colored reaction persists, further refinement may be required.
Also, for managing the financial aspects of your PGM refining, an EMI Calculator Online can help you manage loan repayments: EMI Calculator Online.
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Para precipitar platina (Pt) e paládio (Pd) de uma solução de água régia, você pode seguir estas etapas gerais:
1. **Prepare a solução**: Água régia é uma mistura de ácido nítrico concentrado (HNO₃) e ácido clorídrico (HCl) na proporção de 1:3. Certifique-se de que a solução de água régia contém platina e paládio dissolvidos.
2. **Adicione um agente precipitante**: Para separar a platina e o paládio, você pode adicionar um agente redutor como cloreto de amônio (NH₄Cl) ou cloreto de sódio (NaCl). Para o paládio, a adição de uma solução de cloreto de amônio causará a precipitação do PdCl₂. A platina pode ser precipitada adicionando um agente redutor como o cloreto estanoso (SnCl₂).
3. **Filtração**: Assim que os metais precipitarem, filtre a solução para separar a platina sólida e o paládio do líquido.
4. **Purificação**: Para purificar os precipitados, pode ser necessário lavá-los com água destilada para remover quaisquer impurezas ou ácidos residuais.
Este processo deve ser feito com cautela, pois a água régia é altamente corrosiva e perigosa.
Se você está calculando os custos ou gerenciando os produtos químicos e equipamentos necessários para esse processo, uma calculadora online pode ajudá-lo a controlar e gerenciar seu orçamento com eficiência.