copper carbonate

Ancient Egyptian frog ring, dated to the eighteenth to nineteenth dynasties of the New Kingdom, or c. 1543-1187 BCE. The ring is made of Egyptian blue, which, according to the source, was a “vibrant blue pigment, considered to be the first synthetically-produced pigment, composed of quartz sand, a copper compound, and calcium carbonate. The colour blue was highly prized in ancient Egypt and the creation of a synthetic pigment allowed artists to produce imitations of the precious stones lapis lazuli and turquoise, which were expensive and not always readily accessible.” Egyptian blue fell out of favor sometime during the Roman period.


Making Basic copper carbonate: A Cyan Reaction

Basic copper carbonate refers to the compound (Cu2(OH)2CO3) and it is prepared by combining aqueous solutions of copper(II) sulfate and sodium carbonate.
Basic Copper Carbonate precipitates from the solution:

  • 2 CuSO4 + 2 Na2CO3 + H2O → Cu2(OH)2CO3 + 2 Na2SO4 + CO2

The formation of basic copper carbonate can be verified in the following steps: 

  • a) Centrifuge (or filter) the above-mentioned solution; 1 minute at 6000 g is sufficient 
  • b) Wash the precipitate with distilled water and centrifuge or filter again 
  • c) The colour of the precipitate is blue, like that of several copper salts but none of the sodium salts 
  • d) If dilute (1M) hydrochloric acid is added, then bubbles of COwill emerge and the precipitate will be fully dissolved.

-As you see in the reactions above (which I myself performed for funsies and because i like cyan so much) I chose to just add the CuSO4 solution to Sodium Carbonate (or Sodium Bicarbonate, works either way) and added some water when the fizzing ended, in which the Copper Carbonate precipitated.
-To verify that it was Copper Carbonate i put some bits in 15~20% HCl and you can see in the last two gifs that Carbon Dioxide was released.

Performed and giffed by: rudescience


So. You’ve seen my work with Undertale and the Undertale graphic novel, and I thought it’d only be fair to show you some of my work for a potential story of my own.

All of this is rather old, but it’s all concept and doodle work from my favorite potential story of mine based around the elements and chemistry.

Do u liek chemistry, kids
Cuz I’m writing a thing about it
Like a million years from now but still

If for some reason someone gets in in their head to try and steal my work and my characters… BANISH THAT IDEA IMMEDIATELY. I worked very hard on these guys, did a lot of research and all that crap, and if someone comes along and tries to take that from me… I will not be very happy with them.
But! You guys are super nice and supportive and everything, so I’m not worried in the least.

So uhm, yeah! That’ll be a thing at some point. I’m excited to get to work with this and get to share more of it with you guys.
I’ll see you in the evening with some request responses.
Thanks guys!


Schweizer’s reagent: Dissolving Cotton, & Rayon fibers

Schweizer’s reagent is the chemical complex:

  • Tetraamminediaquacopper dihydroxide  [Cu(NH3)4(H2O)2](OH)2

It is prepared by precipitating copper(II) hydroxidefrom an aqueous solution of copper sulfate or copper carbonate using sodium hydroxide or ammonia, then dissolving the precipitate in a solution of ammonia.

It forms a deep azure solution. If the solution is evaporated, it leaves light blue precipitate of copper hydroxide.  If the solution is evaporated, it leaves light blue precipitate of copper hydroxide. This is because the formation of the tetraminocupric complex is reversible and ammonia evaporates together with the water. If the evaporation is conducted under stream of ammonia, then deep blue needle-like crystals are formed.

Schweizer’s reagent finds use in production of cellulose products such as rayon and cellophane, because wood pulp, cotton fiber, and other natural cellulose sources are soluble in the solution. Dissolved cellulose precipitates when the solution is acidified. (x)

Find more science and gifs on: rudescience
Giffed from: this video

Das Periodensystem der Elemente (PSE)

Originally posted by pritheworld

Die systematische Anordnung der chemischen Elemente nach ihrerer Ordnungs - order Kernladungszahl.

Chlor - chlorine

Kalzium - calcium

Bismut/Wismut - bismuth

Kobalt - Cobalt

Kalium - potassium

der Kohlenstoff - carbon

Kupfer - copper

Mangan - manganese

Platin - platinum

der Phosphor - phosphorus

Quecksilber - mercury

der Schwefel - sulphur

Silber - silver

Silicium/Silizium - silicon

Tellur - tellerium

Uran - uranium

der Wasserstoff - hydrogen

Note: I didn’t include all the elements because a lot of the english element names are cognates with the german element names. I did include the names of elements that changed in German.

We woke from quiet whispers and rose, like zombies hours before the sun.

In the twilight, we prepared. Silhouettes of my brothers shambling quietly in the moondust. Doom clutched in our hands, strapped to our thighs and heavy on our shoulders.

We were the snake with a hundred green eyes, crawling out from the steel grass, on the prowl for prey.

A prey with perfect camouflage, their cloaks made of innocence.

I used to wonder how they crafted such things, where they could possibly find innocence in this land of lies.

The truth would wound me deeply, and it will never heal. I still taste the dust and copper, the carbon and ozone. In the night I still feel my grip slipping, my hands covered in the life that leaked from his body as I lifted it; his hips like chips of porcelain, grinding in my palms.

The price for survival was eternal vigilance.

I spoke their words with a broken tongue and stripped them of their dignity. I did so without remorse, as they sowed the machinings of our destruction in the same earth on which their children played.

What they planted grew faster than any other; watered by footsteps in exchange for flesh.

Who can forget, when in panic that day, a woman covering her shame but cursing our name in crazed despair; held in her arms the broken boy who’d trode on the fruit meant for us.

Cowardice, I understand, for though we were few, we bore hearts of smoldering brimstone clutched from hell with which we were to purge those who stood to harm our own or any who could not defend themselves. We saw through darkness, moved like ghosts in the desert wind and wielded death in tight groupings; two to the heart, one to the mind.

Them, they sacrificed their own.

Infanticide. The word to forge for their sins. A murder more foul than murder can describe.

The silencing of sons and daughters; the first for vengeance, the second for seeking forbidden knowledge.


I have bloodied my hands, I have extinguished the flames of life and I seek no redemption. Not for delusions of righteousness or morality. But because we knew what we were doing. We came prepared, with blackened hearts and steeled minds.

They could not break us, not while we were together; a phalanx of will and peerless determination.

We were the sixth in the first; escorted through the garden of Nakhonay by the Bastards themselves. Lead by a woman so fierce, the Elders dared not ignore her. Every last one of us would follow her to hell and back. Some of us did.

Not all of us returned, and none of us returned unscathed.

Every last one had paid the boatman in advance before we set foot on that foresaken soil. Some crossed the river sooner than others, by their own hand. I never had the chance to say goodbye, but I forgive them for leaving without me.

I still wait on the shoreline with the damned; my sins burning on my soul, content that I tried to do not what was good, but what was necessary.

Years from now, there will be nothing left but ash.

And the blood, sweat, brass and brethren we left in that desert will be our legacy.

A legacy of a lost cause, trying to rescue those who wished to be left to drown in the strife of their own country.

Maybe, just maybe; I changed at least one life for the better.

That’s all I can hope for, with the weight of what I had to do to make it home alive.

—  @cyrusbriar

Mineral seaweed.

This stunning specimen of malachite resembles a marine boulder encrusted with greenery, which can almost be seen to undulate in a gentle marine current. The fronds are pseudomorphs, the replacement of one mineral in its original crystal shape by another, in this case azurite (another copper carbonate mineral). The green bubbles are secondary malachite, showing a habit called botryoidal.

The specimen is from Brazil, and measures 10x8x5 Cm.


Image credit: Rob Lavinsky/

Captain Pines’ Log - Ocean Anomaly #3

Today, my brother and I received distress signals coming from the Atlantic Ocean. We quickly sailed the Stan O’ War II over to the location of the signals and what we saw was something… otherworldly. To say the least.

An enormous skyscraper of an anomaly arose from the ocean floor and nearly took us out in one hit with its intense water-kinesis abilities. The thing had what appeared to be a gemstone for a nose, multiple limbs, and four eyes. The strange markings on its blue-green skin resembled that of a Malachite - a copper carbonate hydroxide mineral! 

Was this creature some sort of gem monster from another world? Or simply a hyper-evolved gemstone that hybridized with a different anomaly entirely? It isn’t clear to me, and truthfully, we didn’t really stick around long enough to find out!

End log. 

There's antimony, arsenic, aluminum, selenium, And hydrogen and oxygen and nitrogen and rhenium And nickel, neodymium, neptunium, germanium, And iron, americium, ruthenium, uranium, Europium, zirconium, lutetium, vanadium And lanthanum and osmium and astatine and radium And gold, protactinium and indium and gallium And iodine and thorium and thulium and thallium. There's yttrium, ytterbium, actinium, rubidium And boron, gadolinium, niobium, iridium And strontium and silicon and silver and samarium, And bismuth, bromine, lithium, beryllium and barium. There's holmium and helium and hafnium and erbium And phosphorous and francium and fluorine and terbium And manganese and mercury, molybdenum, magnesium, Dysprosium and scandium and cerium and caesium And lead, praseodymium, and platinum, plutonium, Palladium, promethium, potassium, polonium, and Tantalum, technetium, titanium, tellurium, And cadmium and calcium and chromium and curium. There's sulphur, californium and fermium, berkelium And also mendelevium, einsteinium, nobelium And argon, krypton, neon, radon, xenon, zinc and rhodium And chlorine, carbon, cobalt, copper, Tungsten, tin and


benny-cheung  asked:

top 5: letters, languages, 2-digit prime numbers, and elements of the periodic table



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Miniature geode

The two variants of copper carbonate (blue azurite and green malachite) are vying to catch our eye as the most beautiful in this stunning 2cm piece from Congo. The acicular crystals (needle shaped) of azurite formed inside the botryoidal malachite rind as the rock was transformed by carbonated and oxygenated waters from the suplhides of the original ore deposit. As mineralised areas approach the surface, being uncovered by erosion above, the minerals are exposed to these reactive substances again after a long period in the dark depths of the Earth.


Image credit: Wolfgang Hartmann