Chemistry

Hello everyone. I need to get my hands on some retort stands with three vertical rods in the base. The closest I could find online had 2. Does anyone know if there is a company that sells something like this, or one that makes retort stands to order? Thanks

Hey all,,, I have synthesised the compound 1,3-Diisopropylimidazolium chloride according to the patent procedure, and i have it by NMR, but it still contains contaminations, and i get it as a brown tar insted of brown solid,, what is the best method to wash this product? i washed few times with THF, but it still oily instead of solid! thank you,, Dana

I'm trying to write-up an activity sheet about the "invisible ink" experiment with lemon juice. For those who are not familiar with this -- you take lemon juice and use it as ink to write a "secret message" on a piece of paper. You wait for it to dry up, then when you're ready to read it, you heat it up. The juice becomes brownish. I want to explain WHY this happens, and I can't find any good resources. I keep reading the explanation that the lemon juice "weakens the paper" and when you heat it up the previously lemon'ed parts burn faster (hence turning brown). I am skeptical of this explanation, it sounds weird to me.. if that's true, it would happen on an open f…

Sodium chlorate synthesis by electrolysis? I am trying to synthesize sodium chlorate by electrolyzing table salt mixed with water. I already tried it with carbon rods from lantern batteries that I took apart and some salt water that I made. I put a current through it with a car battery charger (4 amperes and 6 volts) for four days and then I filtered the electrolyte inside through a t-shirt a couple of time and then I boiled the water away until I got crystals. I scooped the crystals out and then put them on a cookie tray in the oven to dry out at 200 degrees for a couple of hours. To test it, I mixed it with some sugar at a ratio of 3:1 sodium chlorate to sugar and then…

normally, in the industry in which i work (fireworks manufacturing), we're using a mixture of Al, antimony, a very small percentage of sulfur, and a large portion of KClO4 for our salute composition. recently, someone posted a video online about something named "blue" aluminum. as many of you probably know, flash powder is incredibly dangerous to mix and to be around in general...and in the quantities we mix (up to 40lbs through a screen at a time), the results of an accidental reaction due to static or friction, or what have you, would be absolutely catastrophic. well, this "blue" aluminum appears to create the same results as standard flash powder when confined to a…

Hey everyone, I'm currently a Junior in High School (soon to be a senior) and I'm just fascinated by chemistry. I've taken the class at school, and I'm taking a second level variant next year, but for now my feed of chemical sciences is a bit dormant. I was wondering, then, if there are any good experiments that I could perform or simple reactions that I could learn to do here at home (hopefully something relatively inexpensive- catering doesn't pay seventeen year-olds that well). Any input would be lovely! Thanks, Oddt

To make Titanium Dioxide Raspberry Solar Cell, it is requireto make conductive one side of glass sheet as described http://mrsec.wisc.edu/Edetc/nanolab/TiO2/index.html[/url].I want to know how to make conductive a big sheet of glass ( 4ft x 4ft) at atime.

I am looking for an easy way to make a large potassium-based crystal. I'm not particular about the exact chemical used as long as it's non-toxic and not too expensive. Potassium chloride was my first thought since you can buy it as a salt substitute. I was looking for something like this... http://www.mindat.org/photo-22231.html The bigger the crystal the better. A group of smaller ones works too, as long as they are are all fused together. I have never played around with growing crystals before so I have no idea how to pick the 'best' source material, or if it even matters. Thanks!

Heat will speed up rust in the open system? ( room temperature )

Anyone got any, or links to some? Just kind of something I want to do for fun, and perhaps throw a few youtube videos up of the experiment and its results. I'm a college student, so I'd appreciate if cost of the materials for the experiment were under $50usd or at least reasonably close to it Not looking for anything in particular, just looking for a few ideas. Thanks for the help guys!

With regards to the NPFA 704 fire diamond, is there any chemical that scores 4 in every single category?

For silver chloride in water Ksp = 1.8 x 10-10. How many moles of silver chloride can be dissolved in 1.0 L of water? If the solubility of CuBr in water is 2.0 x 10-4 mol/L, what is the Ksp of CuBr? I cant even figure out how to start on this. It is not in my textbook, it's not in lecture notes, its not on google. So i havent been able to attempt much. If someone could point me in the right direction or even show me how to do an example i would be greatful. Thanks

I have to participate in a quiz and they will have one round on 'History Of Chemistry'. I found this Wikipedia Article. Can you provide something more? It would be a great help. Also, one round would be about the works and theories of Prafulla Chandra Ray. links would highly be appreciated. Thanks again. |rkt|

A 100 L steel tank contains 32 kg of oxygen, O2. If the temperature is 25ºC, what is the approximate pressure inside the tank? Choose one answer. a. 25000 kPa b. 800 kPa c. 2100 kPa d. 2.1 kPa e. 25 kPa The correct answer is MEANT to be 25000 kPa. P = nRT/V n = 32000/16 = 2000 T = 298 K R = 8.314 V = 100L = .100 m3 P = 2000 x 8.314 x 298 / .1 = 4955144/.1 =49551440 Pa or 49551.440 kPa Which just seems completely wrong. The only thing i wasnt sure …

Hello, Let me begin with this; If I want to cool some object, say a slab of glass, I will have to extract heat/energy from it, right? Now suppose I cool it by say, some 10 degrees, then where does the heat, I just extracted from the glass slab, come from. Where was it hidden uptil now? Thank you?

2KClO3 + 3S ----> 2KCl + 3SO2 I know this is not a synthesis, combustion, single displacement, double displacement, acid/base neutralization, im thinking it's an oxidation/reduction reaction can anyone explain what type of reaction itis and why??? please and quick

Are all exothermic reactions combination reactions? Also, are all endothermic reactions decomposition reactions?

Hello. There are two things I am trying to do/ two questions I need answers to.I am very new to this so i need precise explanations if you can. 1) if i were to try and analyse a product for the alcohol bases used and quantities, would i be able to do this from home or would i need to send to somewhere to be professionally analysed? and if this is the case where would i send to? 2) If i am trying to make ink go further eg. dilute ink, so that it would stick to a plastic base, the alcohol used to dilute would then evaporate leaving the plastic, fume and fire hazard friendly and also the colour ink used would stick to the plastic, what alcohol base would i …

I have few problems with my studies on Chemistry. Are there any good sites for A/L Chemistry, Physiscs and Mathematics?

so hypothetically i had been selling various elements and chemicals and using USPS and not paying attention to shipping regulations. and guess who shows up at my house looking for me. i had a nice 1.5 hour talk with them at the FBI ladies office. just a warning to those shipping stuff, make sure you read and abide by the postal regulations! *this should not be taken as and is not an admission of failure to follow shipping regulations

[ce] 6CO2 + 7H2O -> C6H12O6 +6O2 + H2O[/ce] [ce] 6CO2 + 12H2O -> C6H12O6 + 6O2 + 6H2O [/ce] The first one is balanced by me and the second one is given in the book. Both seem correct, but is it possible to have variable balance when one balancing is not a factor of other, as in this case.

I'm curious about a few things here: A.) Does americium-241 (smoke detector) emit enough of the right kind of radiation to make phosphorus glow? B.) I assume just as with tritium, different kinds of phosphorus will glow different colors? C.) What are the color choices? D.) Can you buy the right kind(s) of phosphorus? If so, where? Thanks!

Hello I am interested to know if there is anyway of keeping a liquid cold constantly with no other method appart from electricity. I do not have enough room for any regfrigeration pumps etc.. but i wondering if there is any simple way of keeping liquids cold using electricity ? Thank you

So I'm trying to visualize mainly what's in the atmosphere and just the ease of aerosolization of seemingly anything and I'm at the basic level right now. So I've read about the composition of air which most people have heard - 78% N, 21% O, and 1% other gases. And also Asimov on Chemistry pg. 93 that there are about 27 quintillion molecules in 1 cc of gas at STP is helping with a mental image. I guess I'm mainly wondering about the aersolization of particulate matter - is every molecule capable of being aerosolized? Ex. There are fungal and bacterial spore populations of 2000 per cubic meter between 3 to 12 kilometers above sea level. (Microbes and Man pg. 1) An…

There is a method describedabout how to make bioplastic: http://www.shapeways.com/blog/archives/374-Cooking-molding-bioplastics-at-home-recipes,-results-tips.html I want to dry the resulting plastic just in anhour. How to do it?