Chemistry

I was thinking ... why not make a thread where everyone can put great sites about the periodic table. Here are already some great sites. (**** = EXTREMELY GOOD, *** = VERY GOOD, ** = GOOD, * = NORMAL) **** http://www.vanderkrogt.net/elements/index.html Fantastic site !! You will find this site useful not only for the origins (etymology) of element names, but also for translations of each element name into numerous other languages. **** http://homepage.mac.com/dtrapp/Elements/mineral.html Origins of the element names. Very nice !!!! **** http://www.element-collection.com/index.html The Most Beautiful Periodic Table Displays in the World ! Great site for elem…

I've created a chemistry dictionary for use in Microsoft Word and OpenOffice.org Writer. It can be downloaded here: http://www.chemspy.com/chemistry-news/open-access-organic-dictionary.html Right now (2/11/08) it only has US spellings, but that is an update I am working on with priority. I hope this helps my fellow chemists. -AA

Hi everyone! I have talked with woelen about this and he thinks its a good idea so here goes. This thread is for chemistry links and information that could be useful to other people. Books and useful information are also welcome. Links from the forums: Reference: Collecting elements - Lots of information about buying and collecting elements. Hazardous Materials and Synths - Always read before posting something potentially dangerous. The periodic table - Lots of periodic table links. A latex tutorial - A lot of info on how to use Latex in the SFN forum software, nice for formulas, equations and so on. Making Things / Experiments: …

The Basics (and a bit more) about element collecting So, you want to start your own collection of elements, the noble building blocks of the universe? Great! First you might want to define what sort you prefer; elements in their everyday use form (spark plugs, lightbulbs, nuclear reactors), perhaps minerals with interesting elements in them or pure (+99%) lab/reagent grade samples, or a mix of these. Some providers to get you started: Red Green and Blue Company’s Element Collection page, www.element-collection.com If you’re lazy, or just want to get a brilliant assortment of ALL naturally occurring elements straight from hydrogen (1) to uranium (92). RGB also…

I've noticed a trend over the past few months in some of the newer members posting here and in some of the other board, which is that they appear to think that they have the right to information without anyone questioning what they plan to do with it. So I thought I would post this thread, which more or less reiterates some of the T&C as well as various member posts. Many of the people who answer questions in this forum are professionals, students at university/college/etc., or well informed hobbyists. As such, when people ask questions here, we have a responsibility to ensure we are not providing them information that could potentially lead to the production of …

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how can you dry KNO3 when it has become damp

Ok I am trying to make some from house hold ammonia, and 2% tincture of iodine. I put it on a coffee filter, and can get it to turn black, but it seems the amonia, evapoates and the crystal break down as a purple hue forms around the edge of the filter. Or where can I get iodine Crystals...

hey guys, may you're interested in such thread... I'll start and who gives the right answer has to ask next question! allowed are all chemical compounds which have been confirmed. ............ here is a simple one: it consists of an element in the 6 main group and two other elements, you shouldn't drink that, also it is very often used in syntheses. One of the other elements is very light and the second other element is necessary in combustions ?

i just saw this video, not sure how old it is but it's pretty cool. http://media.putfile.com/HHO-GAS

I am a scientist myself. Trying to figure out what's hypothesis and what's theory. I feel any plausible theory has to be substantiated by obervations. My questions regard observations on protein. Maybe somebody can be of help. For now I don't have an answer to any of the questions I want to ask. Here we go. ​Where in the non-living nature can we observe: Protein synthesis? Protein? Protein consisting of laevorotary amino acids only? Biologically functioning protein? Amino acids/peptides in quantities sufficient to build protein? Places containing laevorotary amino acids/peptides only? The availability of all amino acids necessary for life? Where in t…

This has been a FANTASTIC day for me. I came into work today and the person in charge of the payouts for my football pool had a nice surprise for me in my mailbox. I wasn't expecting to get paid for my winnings until about March, but today I found my check for $535 dollars. Also, one of my many element dealers that I frequently talk with is able to get me a troy ounce of Iridium for a very good price, so with my winnings I'll be able to get myself a nicely polished 35 gram lump of 99.9+% pure Iridium metal. Finally, I found out today that I will probably be able to add my first pure radioactive sample to my table: Depleted Uranium. Somebody I know does a lot of …

Where can i buy chemicals? (apart from ebay)

Hello, my name is Jack. I'm 65, live near Atlanta, and have never studied chemistry. I've been curious about chemistry but was never taught it in school as I went to a trade school. I have a ton of the most basic chemistry questions. Thanks.

Where can I get the chemical, potassium nitrate? How expensive is it?

I am unsure if I'm posting this in the right section, but nonetheless I require specialized assistance in verifying my understanding of vibrational frequencies of molecules and atoms with regard to the atmospheric insulative effects of various gases. My current understanding is that "vibrational frequency" is what I've formerly called "resonant frequency" with regard to the effects of sound, but if I am in error, please correct me. Now, relating light to sound, frequencies above resonance should reflect off of the particle since the particle is too massive to move at that frequency and frequencies below resonance should pass through the particle with minimal int…

I'm having a hard time finding places to buy chemicals, anyone know a good place or 2? Also I'm after a nickel mesh, this is also not esy to find, my google skills arnt what they used to be, lol.

Hello, I have some salt dough that i made and i am wondering if there is any way of preserving it permanently. If it was sealed away from any air would it be preserved until exposed to air ? Or is there anything else with the same sort of consistency of salt dough that does last forever ? What gel do they use in Gel mouse pads ? Any ideas ? Thanks !

Doesn't have to be one thing, can be a mixture. Even something that is impractical on account of it's cost or weight.

So, in my quest to make LaTeX more useful on the forums, I stumbled upon the mhchem package. Basically, it allows you to very easily typeset chemical formuae and reactions. For example: [ce]CO2 + C -> 2CO[/ce] This looks great, and it's not complex either: to see the text I used to generate it, click on the image. Instead of using the [math] tag, we use the [ce] tag for chemical equations. Also, you can put things above the line, like so: [ce]CO2 + C ->[\text{heat}] 2CO[/ce] Here's a few more examples to whet your appetite: [ce]CO2 + C <=> 2CO[/ce] [ce]H+ + OH- <=>> H2O[/ce] [ce]SO4^2- + Ba^2+ -> BaSO4 v[/ce] If you wa…

Why would ice melt more slowly when adding salt or sugar in it? Albert

My brother got a children science book entitled "100 things you should know about science". Well, I was reading it, and I noticed that it said that Helium have 1 proton and 1 electron. I got confused, because on the periodic table the atomic number for helium is 2. So I went to ask my sister and she said in "nature" all the helium atoms are bonded with hydrogen atoms, so it was why it have 1 proton and 1 electron. You guys concur with my sister? Or you have another theory? Thanks.

I know HCl (aq) exists, because it is a solution that is called Hydrochloric acid but, what happened if I evaporate the water?? Will I get Hydrogen Chloride?? What does it look like and what kind of bonding it has?? thx Albert

i got a red gas. smelled bad. not a good thing if it's in your room. what could this be?

i don't want to start a fight between physicist and chemist on this board, but with your best, as non-bias as you can, answer what is more beneficial to mankind... Chemistry or Physics