Sodium nitrite from sodium nitrate and lead

Here's the truncated version of the mostly same reaction as my last video. This is not meant to be a standalone video, it’s an addendum to the potassium nitrite video posted before it. If you want to see the full, in-depth, non-rushed procedure with explanations, watch the potassium nitrite video.

[@EinarGrondal]

I'm really enjoying your nitrite videos. You pose a question regarding the acetic acid to neutralize potassium nitrite before use. I think this has to do with using Na or K nitrite in "nitrosation" reactions as in the production of nitrosamines etc. Their nitrate cousin's NaNO3 and KNO3 (both Ph 7 in water) are zesty oxidizers giving up their nitrate anions easily. The nitrites (Ph around 8-8.5) are rather lackluster in comparison. These nitrites are relatively stable and don't give up their nitronium anions so easily. However, if they are neutralized with strong acids such as acetic acid their nitronium anions light upp big time. Lol.. I'm firing this off as if I knew what I was talking about. I'm not a chemist. Just my luck - your probably the chemist. 😂 Keep up the inspiring vibes.

[@dimaminiailo3723]

Are you sure your product doesn't contain NaNO3? I have an old procedure that uses 50 g of NaNO3, 60 g of Pb, then extraction with hot water, CO2 bubbling, cooling down, filtering, evaporating all the water, and extraction with 200-250 ml of boiling ethanol, in which NaNO2 reportedly dissolves, and NaNO3 does not. The ethanol solution is then evaporated, leaving some pure NaNO2, 75-85% yield

[@ChemDungeon]

I believe it doesn't contain any NaNO3.That's essentially the same procedure I used other than the quantities. The first addition of alcohol (I used denatured alcohol containing methanol/ethanol) to the concentrated solution of NaNO2 caused a small quantity of a white precipitate to form, presumably unreacted NaNO3 that was extracted into water from the crude product mixture. In the KNO2 from KNO3 and Pb video before this one, it has the more detailed version that's mostly identical to both the procedure you said, and the one used in this video

[@dimaminiailo3723]

​@@ChemDungeonI interpreted your 'poured in ethanol, boiled down, filtered, boiled down, added alcohol, and so on' as the opposite of extraction with conc. ethanol. Did you perform those evaporations only to remove most of the water?

[@ChemDungeon]

@@dimaminiailo3723 I did those evaporations to assist with the removal of water, yes. The first addition of room temp alcohol resulted in an aqueous alcoholic solution with enough water that the NaNO2 remained soluble, but NaNO3 did not, so I’m fairly confident the end product contains either a trace amount of or no NaNO3

[@j_sum1]

The first of your vids I have come across. I enjoyed it but will have to look up the potassium one to get the procedure. The actual reaction with lead was too fast. I could not really tell what form the lead was. Also it would have been good to see the CO2 bubbling. And you did not explain what the alcohol wash was for. I will check out your other videos later.

[@ChemDungeon]

@@j_sum1 you’re the second person to say that, I’m going to edit the description to reflect that this isn’t a standalone video, it’s an addendum to the potassium nitrite video. You’ll see what form the lead is in and the reasoning behind the alcohol washing in that vid

[@j_sum1]

@@ChemDungeon I commented because I thought it was an interesting and potentially-useful reaction. Thanks for posting.

[@ChemDungeon]

@@j_sum1 I appreciate the feedback :) I felt that posting two full length videos that show 2 more or less identical reactions would be redundant, but maybe not? Or maybe this video wasn’t presented as accurately as it should have been, I hope the edited description reflects that

[@trololo_zhirnota]

recomendation: make the video footage slower, that way less than 60% of the video could be not black screen(with text).

[@ChemDungeon]

This isn’t intended to be a standalone video, rather it’s more of an addendum to the video before it. I do think that at least 70-80% of most of my videos, in general, should be actual footage, so I’ll work on my script layout and timing to try and have it better overlap with footage instead of black backgrounds and text. Thank you for your input, I appreciate it :)