Prussian blue, A "soluble" form, K[FeIIIFeII(CN) 6], which is really colloidal, can be made from potassium ferrocyanide and iron(III): K+ + Fe3+ + [FeII(CN)6]4βˆ’ β†’ KFeIII[FeII(CN)6] The similar reaction of potassium ferricyanide and iron(II) results in the same colloidal solution.
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πŸ‘€︎ u/hjalmar111
πŸ“…︎ Nov 25 2020
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Copper Ferrocyanide. The chocolate brown colored compound. This is used as a test in qualitative analysis for copper ions. Copper II ions react with potassium Ferrocyanide to give the beautiful chocolate brown precipitate. I collected the precipitate for painting.
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πŸ‘€︎ u/vibzzlab
πŸ“…︎ Jan 05 2020
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Potassium ferrocyanide grew for about 4 months
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πŸ‘€︎ u/icarusstones
πŸ“…︎ Jan 18 2020
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Copper (II) Sulphate (Blue) + Potassium Ferrocyanide (White) 'Evidence for Ions experiment'
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πŸ‘€︎ u/MouseGuard
πŸ“…︎ Sep 24 2016
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E536, aka. potassium ferrocyanide, as a salt additive

Hi, does anybody have experience with the salt additive above? I've got a whole load of salt containing the stuff, and I'd like to know if I should buy new salt just to ferment. Thanks!

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πŸ‘€︎ u/mikidep
πŸ“…︎ Oct 02 2019
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How to make cyanide

Homemade Cyanide

Cyanide is the granddaddy of synthetic poisons. Easily made from common chemicals, cyanide is used as is for poisoning bullets and food, and is used in the making of Hydrogen Cyanide, Cyanogen Chloride, Tabun, and numerous other poison gases. A dose as small as 50 milligrams (ingested) can kill an adult man. Of course, the more the better. To make cyanide, you must first make ferrocyanide. This can either be made, or preferably, bought.

Ferrocyanide Preparation

Ferrocyanide is obtained by heating 10 parts (by weight) potassium (or sodium) carbonate; 10 parts coke. cinders, or coal; and 3 parts iron turnings, all in coarse powder. to a full red heat in an open crucible, stirring occasionally until small jets of purple flame arc no longer seen. When cool, the soluble matter is dissolved out of it, the solution filtered, evaporated, and crystallized. The crystals obtained are redissolved in hot water and cooled very slowly, forming large yellow crystals of the ferrocyanide. In order to obtain a pure form, melt dried ferrocyanide in a glass vessel and let cool, dissolve the fused mass in water, neutralize any excess of alkali with acetic acid (vinegar), and precipitate the salt by adding strong alcohol to the solution. Wash the precipitate with a little weak alcohol, redissolve it in water, and crystallize. Sodium Ferrocyanide (Na4Fe(CN)6-10H2O, FW 484.07, mp 82C, CAS# 13601-19-9, AKA Yellow Prussiate of Soda) can be ordered quite cheaply from www.sciencealliance.com. Catalog #s and prices are: C7435-100 100g $4.12, C7435-500 500g $8.96. And there's no hazardous shipping fees for it either. Cyanide costs about $47 a pound plus $15 hazardous.

Cyanide Preparation

To convert the ferro to cyanide do this (please note that these instructions were for the potassium not sodium salt. I'm assuming that the ratios are similar for both); Mix thoroughly 8 parts of dry sodium ferrocyanide and 3 parts dry sodium carbonate (pool pH adjuster), heat them in a steel container (cleaned oil filter can works nicely), with constant stirring (use clothes hanger, straightened out), with a propane torch or other intense heat source till it melts into a clear liquid. Heating is continued until the mix no longer fizzes and the fluid portion is colorless. After a few minutes rest, to allow the contents to settle, the clear portion is poured from the heavy black sediment (iron) at the bottom at the bottom of the crucible and onto to a clean slab or steel bowl. It's t

... keep reading on reddit ➑

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πŸ‘€︎ u/NonBinaryMan
πŸ“…︎ Mar 06 2021
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ELI5: Why are blueprints colored blue?

I've seen it mostly from video games. Even if it's the same color on real life, but why blue and not any other colors?

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πŸ‘€︎ u/shieon_park
πŸ“…︎ Jan 08 2021
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Im sure they are iron compound Crystals! I made prussian Blue lately.. i was left with this liquid Witch formed those beautiful Square shapes? Can anyone tell me:)? reddit.com/gallery/ityitw
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πŸ‘€︎ u/sksksk8998
πŸ“…︎ Sep 16 2020
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Mixing the right amount of table salt, yellow prussiate of potash, liquid soap, boiling water, and treating this solution with paper forms a Chemical Christmas Tree gfycat.com/lonelyadolesce…
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πŸ‘€︎ u/mtimetraveller
πŸ“…︎ Dec 23 2019
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Mixing the right amount of table salt, yellow prussiate of potash, liquid soap, boiling water and treating this solution with paper forms a Chemical Christmas Tree gfycat.com/lonelyadolesce…
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πŸ‘€︎ u/mtimetraveller
πŸ“…︎ Dec 23 2019
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(Warning: Morbid dad joke) True Story -- My family were planning my mum's funeral. We always try to keep things light and try to stay positive, just as Mum would have it...

The funeral director was asking us what we think Mum should wear in her casket.

Mum always loved to wear sarongs (fabric wraps that go around the torso and drape downward a bit like a long skirt would), so my uncle suggested that she wear a sarong in there.

The funeral director looked a bit confused, as did some of our family members, to which my uncle added:

"What's sarong with that?"

I started laughing like an idiot. He was proud of it too. The funeral director was rather shocked. We assured her, and our more proper relatives, that Mum would've absolutely loved the joke (which is very true).

His delivery was perfect. I'll never forget the risk he took. We sometimes recall the moment as a way help cushion the blows of the grieving process.

--Edit-- I appreciate the condolences. I'm doing well and the worst is behind me and my family. But thanks :)

--Edit-- Massive thanks for all the awards and kind words. And the puns! Love 'em.

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πŸ‘€︎ u/zipflop
πŸ“…︎ May 12 2021
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If my son ever came out to be trans then I wouldn’t have a son anymore

I would have a daughter

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πŸ‘€︎ u/Captbeauner
πŸ“…︎ May 07 2021
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Ah yes, pretty hip
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πŸ‘€︎ u/entertainer011
πŸ“…︎ May 09 2021
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Dis-a-
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πŸ‘€︎ u/krismoff
πŸ“…︎ May 06 2021
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Don't know if this was posted here before
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πŸ‘€︎ u/choclite69
πŸ“…︎ May 10 2021
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Bill and Melinda Gates got divorced. Melinda got the house...

But Bill kept the Windows

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πŸ‘€︎ u/ScubaPride
πŸ“…︎ May 05 2021
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From my 5-year-old son: "Hey"

True story; it even happened last night. My 5-year-old son walks up behind me and out of the blue says, "hey."

I turn to him and say, "yeah, kiddo? What's up?"

He responds, "it's dead grass."

I'm really confused and trying to figure out what's wrong and what he wants from me. "What? There's dead grass? What's wrong with that?"

.

.

.

He says, totally straight-faced, "hay is dead grass," and runs off.

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πŸ“…︎ May 10 2021
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If you slap Dwayne Johnsons butt

You officially hit rock bottom

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πŸ‘€︎ u/joeytherealking
πŸ“…︎ May 14 2021
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What rhymes with orange.

No it doesn't.

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πŸ‘€︎ u/Remo1975
πŸ“…︎ May 08 2021
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There will be point in the future when Canada will take over the world.

And then you will all be sorry.

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πŸ‘€︎ u/porichoygupto
πŸ“…︎ May 01 2021
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My Bluetooth speaker wasn’t working so I threw it into the lake.

Now it’s syncing.

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πŸ‘€︎ u/jigsatics
πŸ“…︎ May 11 2021
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In surgery my doctor said, "So what do we have here?" I replied that I broke my arm in 12 places."

He replied, "Well, stop going to those places then!"

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πŸ‘€︎ u/TheAzrael2013
πŸ“…︎ May 08 2021
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I told my wife I saw a deer on the way to work.

She said how do you know he was headed to work?

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πŸ‘€︎ u/PensionNo8124
πŸ“…︎ May 07 2021
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To the person who stole my MS Office License.

I will find you. You have my Word.

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πŸ‘€︎ u/Regclusive
πŸ“…︎ May 03 2021
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In honor of Mother’s Day, I’d just like to say,

β€œthank you for your cervix.”

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πŸ‘€︎ u/Rusto_Dusto
πŸ“…︎ May 09 2021
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I've started a boat building business in my attic...

...sails are going through the roof.

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πŸ‘€︎ u/xholdsteadyx
πŸ“…︎ May 13 2021
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He is right there...
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πŸ‘€︎ u/jointly_epic
πŸ“…︎ May 12 2021
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Sponge bob | (β€’)(β€’) | , Patrick / (β€’)(β€’) \ , Squidward ( (β€’)(β€’) ) , Plankton | (β€’) | , Mr. Krabs |β€’| |β€’|

Made me smile

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πŸ‘€︎ u/marinmarge
πŸ“…︎ May 01 2021
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I got banned from /r/DadJokes for posting, "Frosted Flakes! Cheerios! Lucky Charms! Frosted Flakes! Cheerios! Lucky Charms! Frosted Flakes! Cheerios! Lucky Charms! Frosted Flakes! Cheerios! Lucky Charms! Frosted Flakes! Cheerios! Lucky Charms! Frosted Flakes! Cheerios! Lucky Charms!"

Mods said I'm a cereal reposter...

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πŸ‘€︎ u/honolulu_oahu_mod
πŸ“…︎ May 07 2021
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What do you call a drunk person fumbling with their car keys?

A taxi

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πŸ‘€︎ u/SubstantialBelly6
πŸ“…︎ May 13 2021
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Initially I didn’t believe that my chiropractor was any good.

But now I stand corrected.

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πŸ‘€︎ u/porichoygupto
πŸ“…︎ Apr 28 2021
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*Triggering britishers*
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πŸ‘€︎ u/potato_patataa
πŸ“…︎ May 03 2021
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Guys, today was my first day in the navy and I felt so lost!

Wait. Sorry, wrong sub.

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πŸ‘€︎ u/Nikolai_G
πŸ“…︎ May 05 2021
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And on that note
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πŸ‘€︎ u/sarcastic_gooner
πŸ“…︎ May 11 2021
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My whole life I thought Chewbacca was an Ewok....

Wookie mistake.

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πŸ‘€︎ u/VERBERD
πŸ“…︎ May 12 2021
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I'm so proud. My 12-year old told this joke during dinner: What degree does Dr. Pepper have?

Theoretical Fizz-ics

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πŸ‘€︎ u/professorf
πŸ“…︎ Apr 30 2021
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originally posted on r/tumblr by u/MaetelofLaMetal
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πŸ“…︎ Apr 26 2021
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Knight Knight
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πŸ‘€︎ u/shevelled
πŸ“…︎ May 09 2021
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Why is Dark spelled with a β€˜K’ and not a β€˜C’?

Because you can’t β€˜C’ in the dark

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πŸ‘€︎ u/streety22
πŸ“…︎ Apr 22 2021
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He gave the toy horses a home in his ___
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πŸ‘€︎ u/7keletor
πŸ“…︎ May 07 2021
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It is
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πŸ‘€︎ u/egyptiancowboy05
πŸ“…︎ Apr 30 2021
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My Dad just sent me this
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πŸ‘€︎ u/metroracerUK
πŸ“…︎ Apr 28 2021
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My wife said, β€œI don’t really understand the science behind human cloning.”

I said, β€œThat makes two of us.”

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πŸ‘€︎ u/porichoygupto
πŸ“…︎ May 09 2021
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I caught my son chewing on an electrical cord...

so I had to ground him.

He's doing better currently.

And conducting himself properly.

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πŸ‘€︎ u/XIIXOO
πŸ“…︎ Apr 19 2021
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There were 30 cows and 28 chicken. How many didn't?
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πŸ‘€︎ u/Rozen007
πŸ“…︎ Apr 19 2021
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