SnailsAttack
Hazard to Others
Posts: 165
Registered: 7-2-2022
Location: The bottom of Lake Ontario
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Your weirdest chemical that's gotten moldy?
What's your guys' most unexpected chemical that's gotten moldy?
I had some potassium acetate solution that I guess had an organic contaminant in it, which grew a ton of mold in the form of these puffy black
clusters that spread hyphae all throughout the solution.
 
On my dresser there's a concentrated meta-stable solution of magnesium sulphate and sodium carbonate with a pH of probably like 12, which somehow got
colonized by a few molds near the surface. I don't know how anything can live in there, but it's kinda cool.
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khlor
Hazard to Self
Posts: 95
Registered: 4-1-2014
Location: Who knows, really...
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Mood: No Mood
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I once forgot about a divded electrolytic cell, I was doing chlor-alkali, the cell just stood there for what I can only guess, two months and while on
the anode nothing happened(chlorine, hypochlorites, low pH) as presumed. But, the cathode chamber, some weird mold(penicilum/aspergillus) like, was
growing, it had white, light green and some black. No smell. Should have taken a pic to show for, but my spotty description will have to do. I am
still to this day, amazed, because nothing was supposed to grow there, pH was over 13, solution was satured with NaOH.... at the time I wanted
hydrogen and chlorine, so when experiment was ended I never bothered discharging the cell and storing the other products.
"NOOOOOO!!! The mixture is all WROOOOOOONG!"
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Tsjerk
International Hazard
Posts: 3031
Registered: 20-4-2005
Location: Netherlands
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Mood: Mood
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High concentrations of ethanol, at least above 40%. The fungus grew on top of the liquid, like how it grows on other things it is not supposed to grow
on, like high sugar fruit jam. There were also other unpleasent things in there, like methanol, isopropanol and azide.
The fungus forms a layer to separate itself from the high concentrations of ethanol/sugar.
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karolus28
Hazard to Self
Posts: 51
Registered: 14-4-2019
Location: EU's Brazil
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Mood: zgrzyt
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KClO3 recrystallisation water
Hi, please read about exif data.
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mayko
International Hazard
Posts: 1218
Registered: 17-1-2013
Location: Carrboro, NC
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Mood: anomalous (Euclid class)
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honorable mention: some ammonium phosphate solution
tied for first: these crudlings, surviving in the face of impressive osmotic stress and feeding on ... ?
al-khemie is not a terrorist organization
"Chemicals, chemicals... I need chemicals!" - George Hayduke
"Wubbalubba dub-dub!" - Rick Sanchez
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unionised
International Hazard
Posts: 5123
Registered: 1-11-2003
Location: UK
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I was always impressed by mould that grows in ammonium phosphate buffer... with 10% acetonitrile.
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arkoma
Redneck Overlord
Posts: 1761
Registered: 3-2-2014
Location: On a Big Blue Marble hurtling through space
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Mood: украї́нська
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Balack powder that was left in my black match machine damp. Molded over like crazy.
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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Metacelsus
International Hazard
Posts: 2539
Registered: 26-12-2012
Location: Boston, MA
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Mood: Double, double, toil and trouble
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Well, it's got nitrogen, phosphorus, and carbon. All it needs are some trace elements (sulfur, metals, etc) from impurities. Life, uh, finds a way.
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ShotBored
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Posts: 124
Registered: 19-5-2017
Location: Germany
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Maybe this isn't weird to everyone else, but I have seen pure RDX packed in water mold in storage. When we found the material, I asked my boss about
investigating the mold as an environmental remediation option for RDX contamination in the environment. He didn't seem super interested in funding it
for whatever reason.
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woelen
Super Administrator
Posts: 8011
Registered: 20-8-2005
Location: Netherlands
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Mood: interested
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I had a jar of ferric ammonium citrate, the brown variation. One year later, there was a big layer of hairy stuff on top of the chemical in the
container.
I also have the green variation in a similar container. That one did not get any mold on it, not even after more than 10 years of storage.
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Rainwater
National Hazard
Posts: 913
Registered: 22-12-2021
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Mood: indisposition to activity
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I dont know how, but a algae can survive in gasoline, if any water gets into the fuel, it sinks to the bottom and the algae starts to grow, making a
thick pond scum.
"You can't do that" - challenge accepted
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bnull
Hazard to Others
Posts: 387
Registered: 15-1-2024
Location: South of the border, wherever the border is.
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Mood: Dazed and confused.
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A citric acid solution that I used to clean some copper stuff. It is a sea of dark green furry spots with a white translucent jelly sitting on the
bottom. I thought copper was toxic to fungi. (Sorry for the quality.)
![20240119_144713[1].jpg - 70kB](http://www.sciencemadness.org/talk/files.php?pid=690285&aid=100618)
[Edited on 19-1-2024 by bnull]
Quod scripsi, scripsi.
B. N. Ull
P.S.: Did you know that we have a Library?
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Denatonium
Harmless
Posts: 5
Registered: 11-2-2019
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I was once cleaning rust off of steel tools with citric acid and had a deep red solution of Iron(II) citrate and Iron(III) citrate. I don't know what
type of organism can survive those sorts of conditions, but there was a mold that did.
Bitter as always,
Denatonium
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DraconicAcid
International Hazard
Posts: 4320
Registered: 1-2-2013
Location: The tiniest college campus ever....
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Mood: Semi-victorious.
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I found some slime growing in a saturated solution of sodium sulphate.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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Anthracene
Harmless
Posts: 9
Registered: 4-12-2023
Location: Stone Island
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Mood: Curious
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Coal
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