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crystal grower
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Piece of science
Hello everyone,
I want to inform you about changes that we have made to improve our website http://chem.pieceofscience.com/ .
My friend hegi have worked on this site for several years and I have joined this project only few weeks ago.
Recently we (especially hegi ) have made serious changes to website design and we
have also added numerous interesting articles with superb photos. You can find here numerous organic and inorganic synthesis, crystal growing
procedures and more interesting stuff.
Come and check out our new, improved website, I can guarantee it is worth it!
here you can see some photos from the website:
      
[Edited on 16-3-2016 by crystal grower]
 
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j_sum1
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I must browse more thoroughly. But this looks absolutely gorgeous. And also has some nice procedures described.
Well done!
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Loptr
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I thought the same when I browsed the site.
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Maker
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Well written explanations, nice pictures and easy to navigate, I like it. 
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Hegi
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Thanks everyone for positive feedback! We will be glad if you keep visiting our page that is going to rapidly improve this year. We will revise old
posts, add detailed procedures and of course more photos! 
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chemplayer..
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Brilliant photos and great lighting. Well done; it's a very nice site.
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The Volatile Chemist
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Indeed! I like the new set-up, and there's quite a lot of new syntheses on there. Good work! The preps are definitely complex. But have you removed
some of the older entries?
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crystal grower
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Quote: Originally posted by The Volatile Chemist  | | Indeed! I like the new set-up, and there's quite a lot of new syntheses on there. Good work! The preps are definitely complex. But have you removed
some of the older entries? |
Firstly I want to thanks everyone for nice feedback.
Yes, some of the old posts were removed but only temporary as they need revision. You can expect them back on the site soon.
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Hegi
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Yes, we did it too! ... CHEVREUL´S SALT and also added info about it... Hope you´ll like. Be sure to check out the page soon - revised articles about cyano complexes,
mohr´s salt and pyrophoric iron are coming! Thanks.
Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
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100PercentChemistry
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That looks amazing. I'm tempted to grow some crystals now,
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crystal grower
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Thanks for compliment, growing crystals is fun, altough it needs a portion of patience .
We are now also revising articles about minerals with a whole new category - mineralogy. Here is an example: Cassiterite
I hope you will like it.
[Edited on 27-3-2016 by crystal grower]
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Hegi
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Besides cassiterite specimen, the articles about crystals of RHODOCHROSITE and MOLYBDENITE have been revised (more info added, photos and structure). Do not miss!
[Edited on 28-3-2016 by Hegi]
Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
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Hegi
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New articles and FB fanpage
New articles have been posted recently! Check out.
1. Potassium ferrioxalate synthesis
2. Pyrophoric iron
3. Mohr´s salt preparation
Also, if you like the page, you can follow us on our new FB fanpage PIECE OF SCIENCE. We are going to do our best to write as many interesting articles as we are able to.
Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
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aga
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It is a mystery why the blatant promotion of your own chem website (which is shaping-up rather well) is tolerated here, at all.
Heigh-ho.
If you'd care to post your articles here on SM as well, that'd be very interesting.
(might also be useful as a backup for when your site gets shut down).
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MrHomeScientist
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Your page on making chrome alum (http://chem.pieceofscience.com/?p=419) has a very confusing procedure. I'm not sure what chemicals are added where, or what the purpose of the
seven (!) separate gas wash bottles are. How is the sulfur dioxide generated? Where is the potassium dichromate solution? Is any excess gas
neutralization done? What's the advantage to this method over, say, mixing potassium and chromium sulfate solutions together? Did you seriously
actually set up seven gas wash bottles like that?
Really top quality photos, though. Absolutely beautiful.
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Hegi
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| Quote: Originally posted by MrHomeScientist | Your page on making chrome alum (http://chem.pieceofscience.com/?p=419) has a very confusing procedure. I'm not sure what chemicals are added where, or what the purpose of the
seven (!) separate gas wash bottles are. How is the sulfur dioxide generated? Where is the potassium dichromate solution? Is any excess gas
neutralization done? What's the advantage to this method over, say, mixing potassium and chromium sulfate solutions together? Did you seriously
actually set up seven gas wash bottles like that?
Really top quality photos, though. Absolutely beautiful. |
The sulfur dioxide is liberated in the three-neck round bottom flask (reaction of copper with concentrated sulfuric acid)
Yes I did actually set up gas wash bottles like that. I must agree with you. The scheme should be more detailed and the parts of the setup labeled.
Let´s make it clear:
1. gas wash bottle - empty
2. gas wash bottle - concentrated sulfuric acid (to dry the sulfur dioxide)
3. gas wash bottle - empty
4. gas wash bottle - potassium dichromate solution
5. gas wash bottle - empty
6. gas wash bottle - sodium hydroxide 20% solution to neutralize excess of sulfur dioxide
7. gas wash bottle - empty, adapted to the vacuum pump
I think there is no advantage. Mixing would be much simpler if you have the compounds. It is just a nice demonstration of chromium(VI) reduction
leaving the compound that grows nice crystals.
Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
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MrHomeScientist
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Labeling the diagram would help immensely. The website currently leaves out your description above, so readers are going to miss the conc. acid drying
bottle and the hydroxide neutralization bottle AND the fact that the whole thing is hooked up to a vacuum pump. Maybe that's standard procedure for
such a setup; I've never done that sort of thing myself. I think that's critical information that should be included so others can repeat the
experiment. I also didn't know you could make SO<sub>2</sub> straight from copper like that, neat.
You also say that the dichromate solution is placed in the 'separatory trap'; I took that to mean the sep funnel above the 3-necked flask, but it's
actually in gas wash bottle #4. The seven wash bottles seems a little excessive to me personally, but again I haven't really worked with them before
so maybe that's business as usual.
I'm just trying to help make the description clearer. Maybe discussion like this should be done via U2U so as not to clog up the thread.
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crystal grower
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Thanks very much for your opinion!
I agree with you too. We will improve this article. Of course we will be glad for further communication  .
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Hegi
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| Quote: Originally posted by aga | It is a mystery why the blatant promotion of your own chem website (which is shaping-up rather well) is tolerated here, at all.
Heigh-ho.
If you'd care to post your articles here on SM as well, that'd be very interesting.
(might also be useful as a backup for when your site gets shut down). |
Hi aga,
I´m sorry we are disappointing you with our blatant promotion (blatant being a new word for me). We are just trying to present the project I´ve been
working on for over three years know. It is a time-consuming activity and it would be much more if I had to copy all articles also here.
I still can not see the point. We are doing science and we want to share our work. I try to post (at least) the photos at SM forum. The articles we
posts on our website should be inspiring and useful for many hobbie-chemists.
(anyway, in return I´ll make a promotion of SM on the website ASAP to be fair )
P.S.: New articles added
The photo of Bournonite crystals on quartz/sphalerite matrix from my collection. This sulfosalt mineral forms really nice tabular crystals!
<img src="http://chem.pieceofscience.com/wp-content/uploads/2016/04/bournonite-1.jpg" alt="Bournonite" style="width:900px;height:600px;">
Also check out a short-write about Czech speciality called Hermanov sphere. It is really unique!
<img src="http://chem.pieceofscience.com/wp-content/uploads/2016/03/hg1.png" alt="Hermanov sphere" style="width:900px;height:600px;">
Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
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MrHomeScientist
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Aga I don't see the issue. There's no ads on their site so it's not like they are making money by promoting it. They're just sharing their work for
others to enjoy, which they didn't want to double post on here as well. Hell I promote my YouTube channel all the time, and nobody ever complains
about that. Relax, man.
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crystal grower
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Make sure to check out th is awesome synthesis of Fluorescein dye.
http://chem.pieceofscience.com/?p=1307
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chemplayer...
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Very envious of your quality of lighting and photography. Great work!
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Hegi
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Thanks much, your work is amazing stuff as well! ...
Some new articles were posted on the website.. If anyone is interested in polymorphs and hydrates, be sure to check our most detailed article about Nickel(II) sulfate hydrates and polymorphs. Soon there will be also posted an article about Copper(II) sulfate trihydrate preparation!
<img src="http://chem.pieceofscience.com/wp-content/uploads/2016/04/NiSO4-4.png" alt="Smiley face" height="400" width="600">
<img src="http://chem.pieceofscience.com/wp-content/uploads/2016/05/aNHS-crystal-1140x760.png" alt="Smiley face" height="400" width="600">
Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
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100PercentChemistry
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Very nice
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The Volatile Chemist
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Nice. *Quite* the structure difference between the tri- and penta-hydrates, it seems.
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