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Murexide
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Ammonium Nitrate Source
I've noticed that ammonium nitrate has recently become (more or less) impossible to obtain even in small quantities (100g ish) though it was widely
used in the past as a fertiliser. Not available at hardware shops, banned for sale on ebay etc... can't locate a source anywhere. Ironically, I may
actually be able to obtain conc. HNO3 and NH3...which can be used to make ammonium nitrate although it would seem extremely wasteful.
What has your experience been on this, especially within oz?
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tahallium
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Ummm I think you can react ozone with ammonia but you need ozone
You can make ozone by adding sulfuric acid to potassium permanganate but be careful cuz manganese heptoxide and ozone are extremely explosive and
poisonous
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B(a)P
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I can't find an Australian source either. I make mine from calcium nitrate and ammonium sulphate, both sourced from Bunnings.
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Murexide
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Calcium sulfate precipitate is very difficult to remove though. It forms an unfilterable slurry that clogs everything, and it doesn’t even fully ppt
so what filtrate you get will be contaminated
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B(a)P
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Calcium sulfate has a very low solubility in water. I set up a large gravity filtration overnight and it works fine. One recrystalisation gets it pure
enough for my needs.
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draculic acid69
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Quote: Originally posted by Murexide  | | Calcium sulfate precipitate is very difficult to remove though. It forms an unfilterable slurry that clogs everything, and it doesn’t even fully ppt
so what filtrate you get will be contaminated |
Filter thru a t shirt first to remove the bulk then filter as usual or let as much settle out as possible first so u can decant it.
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Murexide
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I suspect the the slurry would pass right through the t-shirt, though I haven't tried.
Might give it a go sometime.
Wow, just looked up solubility. You can get 580g/100 mL to dissolve, so only a 20% loss on recrystallisation. Not bad.
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Deathunter88
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https://www.ebay.com/itm/Cardinal-Health-KWIK-KOLD-Instant-C...
Didn't see you were oz, but similar story probably.
[Edited on 8-3-2020 by Deathunter88]
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Murexide
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It's actually rather difficult to find ammonium nitrate based cold packs here.
They're all urea.
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B(a)P
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Yep exactly, this is why i use the double displacement of the two fertilisers. Use a slight excess of calcium nitrate then wash your first lot of
ammonium nitrate crystals with ethanol to get rid of any excess calcium nitrate.
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Murexide
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Wow, the solubility difference between calcium nitrate and ammonium sulfate in etoh is impresssive. Probably calcium complexing with ethanol?
This makes me think, what are the chances of recrystallisation in ethanol solvent working to eliminate the calcium nitrate?
Calcium sulfate fully insoluble in ethanol so hot filtration may be an option.
https://en.crystalls.info/Solubility_curve Looks promising
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Murexide
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Side note, what product do you source your calcium nitrate from in Bunnings? I can’t seem to find it.
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Murexide
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Also after filtration, do you just let evaporate to obtain product?
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B(a)P
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Part B of this https://www.bunnings.com.au/manutec-600g-hydrangea-pink-fert...
After filtering off the calcium sulphate I boil it down to about 10 or 20 percent of the original volume allow to cool then filter off the ammonium
nitrate crystals, wash with ethanol, then perform a recrystalisation. I spread the crystals out on a ceramic dish then seal in a tub with a jar of
anhydrous magnesium sulphate for drying.
Are you in Sydney? Since I made my last lot I have also found a reliable potassium nitrate source.
[Edited on 8-3-2020 by B(a)P]
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Murexide
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Wow never realised the multipart fertilisers were anything but homogonised mixes!
I'll give the procedure a go when I get some time.
Yeah I'm in Sydney too.
I have a reliable online source of KNO3, although not an OTC.
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draculic acid69
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Calcium nitrate is also part b of powdered hydroponic nutrient from Bunnings as well.
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B(a)P
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| Quote: Originally posted by Murexide | Wow never realised the multipart fertilisers were anything but homogonised mixes!
I'll give the procedure a go when I get some time.
Yeah I'm in Sydney too.
I have a reliable online source of KNO3, although not an OTC. |
These guys sell fertilizer grade KNO3. Looks like they also sell calcium nitrate in larger volumes than Bunnings do. https://www.petandgarden.com.au/
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Nonexistent
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We need a Bunnings tips and tricks thread I think. Damned panic buyers getting all the metho (etho) and IPA. Was glad to get some acetone and cooper
sulphate today, although everything seems to be running thin.
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CouchHatter
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The new marijuana supply shops everywhere around here are good for something after all! I recently got some potassium nitrate for $2/lb. Some of them
sell it for quite a lot more though. And I don't know how many plant supply stores you have down there, or if potassium nitrate would even be useful
to you.
The replies to this thread mention Australian law concerning these chemicals... Good luck!
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dicyanin
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Years ago I have seen it available at a ceramics supply house in 1kg bags. I don't know what use it has there, and this was before 2014, back when
bags of sodium chlorate were still sold as herbicide and 60% nitric acid solutions could be bought off the shelf. Today both, at least here, cannot be
sold to private individuals anymore. At one point even 30% hydrogen peroxide was banned but luckily they came back from that.
sic transit gloria mundi
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B(a)P
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| Quote: Originally posted by Nonexistent | | We need a Bunnings tips and tricks thread I think. Damned panic buyers getting all the metho (etho) and IPA. Was glad to get some acetone and cooper
sulphate today, although everything seems to be running thin. |
It is annoying not being able to source ethanol. I am currently running a fermentation for the purpose of restocking my ethanol supplies.
I was in Bunnings a couple of weekends ago and strolled by the place where ethanol usually sits in the hope that some may have come back in stock. As
I walked past another customer experiencing the same disappointment as me said to the person standing next to them, 'I think mineral turpentine is
just a brand of methylated spirits, let's grab 4 of those'. 
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draculic acid69
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| Quote: Originally posted by Nonexistent | We need a Bunnings tips and tricks thread I think. Damned panic buyers getting all the metho (etho) and IPA. Was glad to get some acetone and cooper
sulphate today, although everything seems to be running thin.[/rquote
Iso costs like $54 a litre from bunnings.its definitely a bad source for isopropyl alcohol. |
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draculic acid69
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It is annoying not being able to source ethanol. I am currently running a fermentation for the purpose of restocking my ethanol supplies.
I was in Bunnings a couple of weekends ago and strolled by the place where ethanol usually sits in the hope that some may have come back in stock. As
I walked past another customer experiencing the same disappointment as me said to the person standing next to them, 'I think mineral turpentine is
just a brand of methylated spirits, let's grab 4 of those'. [/rquote]
Idiots.
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Lion850
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Science Essentials was selling 2.5 liter of 96% LR ethanol for around $70 a week ago. Maybe they still have stock.
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RogueRose
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| Quote: Originally posted by Lion850 | | Science Essentials was selling 2.5 liter of 96% LR ethanol for around $70 a week ago. Maybe they still have stock. |
Man you can buy 50lbs of sugar and get about 4.5 gals of 100% ethanol for less than the $70, if you have the time.
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