Nickel - Meteorite Separation

In summary, while quinoxoline complexation and dimethylglyoxime precipitation are both viable methods for separating nickel from a meteorite sample, the former may be more efficient and accurate, but may require additional steps to remove interferences.
  • #1
jeseravi
2
0
Hi everyone! I'm looking to separate nickel from a meteorite sample and I have a pretty solid plan... however I'd like to know if there are any disadvantages of using the following methods:

Quinoxoline Complexation with Spectrophotometric Determination (using pre-separation to remove interferences)

Quinoxoline Complexation with Spectrophotometric Determination (using multiple absorbance measurements at multiple wavelengths and standards for any interfering species to determine the amounts of both nickel and interferents)

Dimethylglyoxime Precipitation and Determination by Gravimetry

Any advice would be appreciated!
 
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  • #2
The main disadvantage of using quinoxoline complexation for spectrophotometric determination is that it can be difficult to separate the nickel from any interferences in the sample. As such, it is important to use pre-separation methods or multiple absorbance measurements at multiple wavelengths and standards for any interfering species to accurately determine the amounts of both nickel and interferents.Dimethylglyoxime precipitation and determination by gravimetry can also be used to separate nickel from the meteorite sample, but this method can be time consuming and may require more steps than the quinoxoline complexation method. Additionally, this method may not be as accurate as the quinoxoline complexation method and may not be able to separate nickel from interferences as effectively.
 

1. How does nickel separate from meteorites?

Nickel is separated from meteorites through a process known as acid etching. This involves using an acid solution to dissolve away the surrounding material and leave behind the nickel.

2. Can all meteorites be separated to extract nickel?

No, not all meteorites contain significant amounts of nickel. Only certain types of meteorites, known as iron meteorites, have high enough concentrations of nickel to make the separation process worthwhile.

3. What is the purity of nickel extracted from meteorites?

The purity of nickel extracted from meteorites can vary, but is typically around 95%. This is due to the presence of other elements and impurities in the meteorite that cannot be completely removed during the separation process.

4. What is the main use for nickel extracted from meteorites?

Nickel extracted from meteorites is primarily used in scientific research and for creating alloys. It is not commonly used in commercial applications due to the relatively small quantities that can be extracted from meteorites.

5. Are there any ethical concerns surrounding the extraction of nickel from meteorites?

There are some ethical concerns surrounding the extraction of nickel from meteorites, as it involves the destruction of a unique and rare natural object. However, this process is carefully regulated and only a small number of meteorites are used for scientific research and extraction purposes.

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