Help Testing SN

[restless.dreams]

I'm planning to test my SN with the kit show below, since it's what I have on hand. Can someone take a look at my protocol and let me know if it looks right? I adapted the procedure based on Vizzy's guide. My test kit only measures up to 5 ppm of nitrite, so that's what I'll be targeting.



Here's the procedure I'll be using:

• Fill two cups each with 1 L of distilled water
• Weigh out 1 g of SN
• Stir and dissolve the SN in Cup #1
• Take 5 ml from Cup #1 and transfer into Cup #2
• Stir the mixture in Cup #2
• Test Cup #2 using the nitrite test
• If the SN is pure, the color should match 5 ppm in the color chart

Math:
t = ( tc * v1 * v2 ) / w
t = (0.005 *1000 * 1000)/1000
t = 5 mL

 

[restless.dreams]

I'm planning to test my SN tonight, so any feedback on my protocol would be appreciated! Chemistry was always my worst subject :P

 

[rozeske]

Wasn't it supposed to be 10ppm? I don't know much about the testing, I hope others will say but I wish you good luck with the results

 

[restless.dreams]

Thanks! My test only measures up to 5 ppm so I tried to adjust the protocol based on that. Not sure I did it right though...

 

[_Broken_alice]

Math checks out for a target of 5ppm in solution 2.

Solution 1 would be 1000ppm.
Solution 2 would be 5ppm.

 

[restless.dreams]

Thank you so much alice!

 

[restless.dreams]

I'm doing the test now, will update soon with results. Fingers crossed!

 

[restless.dreams]

Okay, the results are in! What do we think?

1. Test solution


2. Test solution (left) and control distilled water (right)

 

[EyesOfNight]

Looks good. Did you use a single syringe to transfer the liquids?

 

[restless.dreams]

Looks good. Did you use a single syringe to transfer the liquids?

Thanks, I feel good about it! I used a syringe to transfer 5ml to Cup #2 when I was making the test solution, and then I used different syringes for each test tube. Did my best to hopefully avoid cross contamination.

What should i do with the SN solution? Is it safe to pour it down the sink? @_Broken_alice

 

[EyesOfNight]

Thanks, I feel good about it! I used a syringe to transfer 5ml to Cup #2 when I was making the test solution, and then I used different syringes for each test tube. Did my best to hopefully avoid cross contamination.

What should i do with the SN solution? Is it safe to pour it down the sink? @_Broken_alice

Alright, well done. That's something I missed myself.

Yes, you can. That small amount won't do any harm.

 

[letsgetittogo]

This is really cool, I'm glad you got your SN tested

 

[_Broken_alice]

Thanks, I feel good about it! I used a syringe to transfer 5ml to Cup #2 when I was making the test solution, and then I used different syringes for each test tube. Did my best to hopefully avoid cross contamination.

What should i do with the SN solution? Is it safe to pour it down the sink? @_Broken_alice

Small quantities are fine. Large quantities (100's of grams) can be devastating to the local waterways by affecting fish and creating an algal bloom.