Gilded

"the only radioisotope allowed for injesting is carbon-14" Yeah right! You know, with carbon-14 being in every living creature on Earth, you just might want to think it over before having even an extra dose. O-15, C-11, Tc-99m, hundreds of different isotopes of whatever... the list goes on. In PET (positron emission tomography, if someone wasn't familiar with the word) these are widely used. Edit: And if you meant that C-14 is an isotope used in tumor treatment or other forms of radiation therapy: not likely.

"or most chemical suppliers sell it why do you want it anyway" It's used to make certain... stuff, that were mentioned in a certain and recent thread by YT. No more about that, as we're not supposed to talk about them.

Yeah, too bad U-238 isn't one's choice when acquiring nuclear fuel. Nor is near 100% U-235. :>

Holy jumping mother of God! They go crazier and crazier. Large slab of pure U-238 is starting to get to the level of "keep it as far from me as possible", even when considering the depl. U's long half-life. I wonder what's up with those costs though... RGB sells ampouled 0.5g samples for 95$, and that's freaking 3500$. The kg price of depleted uranium is only a couple of hundred bucks when buying in bulk. Same goes for thorium. I guess it's just the price between entire nations or so, when tons of the stuff are bought. Edit: THAT ****ING DOES IT! I checked which chemicals they have added (since it was a long time since I checked Un. Nuclear since they don't deliver outside US anymore), and guess what: they sell hexamine. As if I weren't mad enough already with Americans having access to all sorts of fun chemicals. >:/

"It's also the same things as pH, except just with the OH ions instead" Yes I know that, I was just wondering about the 0.1 mol NaOH 0.9 mol H2O case, since OH- doesn't have the same habit of sticking into H2O as H+ does. "HSO4- is a weak acid" Ahh, good point. Forgot about that. However, sulfuric acid is usually count as a diprotic acid (guess if it's just that it has the potential of being able to give up two protons).

I'm not going to join any clubs. Since there aren't any here. And I'm not going to buy any kits. Since there aren't any available here. No other option than to make one from scratch. And getting jailed after it crashes into someone's roof.

Guess if it's fun when it's minus twenty five here and two feet of snow? Once: minus twenty. I wore a fisherman's hat. My ears were damn red. >:/

"I am NOT suggesting we should'nt look for ET life. I am positing that there is a near zero chance to find an ET "intelligent" life." There is a certain chance of finding life outside Earth. There is a smaller chance of finding near-human intelligent lifeforms outside Earth. And when we add requirements, like having fourteen tentacles and sixty eyes, the chances decrease rapidly. It's like a lottery: One in a billion possibility to win million dollars. Yet people buy lottery tickets. Why? Because there IS a certain chance to win the million dollars. [This should probably go to Gilded's Worst Analogies of 2004]

"Have you done any static testing of the KNO3/C idea?" No, but I remember YT saying something about it.

"Have you done any static testing of the KNO3/C idea?" No, but I remember YT saying something about it.

"I hear the best bang for the buck is KNO3 with either dextrose, sucrose, or sorbitol." Hmmh. Doesn't the H2O generated put brakes to the reaction, so isn't just carbon powder better? "My goal is 5,280 feet, and then 10,560 feet." Remember - getting your rocket to 5,280 feet during a hurricane is cheating!

"I hear the best bang for the buck is KNO3 with either dextrose, sucrose, or sorbitol." Hmmh. Doesn't the H2O generated put brakes to the reaction, so isn't just carbon powder better? "My goal is 5,280 feet, and then 10,560 feet." Remember - getting your rocket to 5,280 feet during a hurricane is cheating!

Remember that some compounds can donate more than one OH- or H+. H2SO4 is a good example; a diprotic acid, able to give up two protons. H3PO4 (phosphorous acid) is a triprotic acid, able to give three protons... and so on. That doesn't have anything to do with those HCl and NaOH of yours, but remember it anyway (if you didn't know it already ). Example: What about calculating pH when we use molar values? Well, the case is easy with H+ at least, since the amount of molecules in the solution doesn't actually increase, since the H+ stick to H2O making H3O+, a hydronium ion. 0.001mol HCl, 0.999mol H2O. We can use the 0.001 value, since that's also the molar value for the H3O+ (of course, then there's no HCl, just Cl- floating around). As we all know, or don't know, pH is -([H3O+]log), or the negative logarithm of the hydronium ion concentration. -(0.001log) = 3 You got yourself a pH 3 solution. This is where the diprotic-whatever-stuff comes in. If you had a solution with that same amount of water, and same amount of acid, but sulfuric acid in this case, you would get two protons from every H2SO4 molecule. -(0.002log) = approximately 2.7 That's about that. Does anyone know more about the pOH thing? Since I'm not perfectly sure if 0.1mol NaOH and 0.9mol water makes a 1.1 mol solution.

Remember that some compounds can donate more than one OH- or H+. H2SO4 is a good example; a diprotic acid, able to give up two protons. H3PO4 (phosphorous acid) is a triprotic acid, able to give three protons... and so on. That doesn't have anything to do with those HCl and NaOH of yours, but remember it anyway (if you didn't know it already ). Example: What about calculating pH when we use molar values? Well, the case is easy with H+ at least, since the amount of molecules in the solution doesn't actually increase, since the H+ stick to H2O making H3O+, a hydronium ion. 0.001mol HCl, 0.999mol H2O. We can use the 0.001 value, since that's also the molar value for the H3O+ (of course, then there's no HCl, just Cl- floating around). As we all know, or don't know, pH is -([H3O+]log), or the negative logarithm of the hydronium ion concentration. -(0.001log) = 3 You got yourself a pH 3 solution. This is where the diprotic-whatever-stuff comes in. If you had a solution with that same amount of water, and same amount of acid, but sulfuric acid in this case, you would get two protons from every H2SO4 molecule. -(0.002log) = approximately 2.7 That's about that. Does anyone know more about the pOH thing? Since I'm not perfectly sure if 0.1mol NaOH and 0.9mol water makes a 1.1 mol solution.

"I present to you, the default winner of this competition, Nuclaer Boy" David Hahn rocks indeed. "Unitednuclear.com sells Uranium" These days they only sell uranium ore or marbles, and other rather boring types of uranium. They used to sell actual, probably about 3% U-235 containing nuclear reactor U-fuel pellets! I'd like to get my hands on a couple of those. :>

"I present to you, the default winner of this competition, Nuclaer Boy" David Hahn rocks indeed. "Unitednuclear.com sells Uranium" These days they only sell uranium ore or marbles, and other rather boring types of uranium. They used to sell actual, probably about 3% U-235 containing nuclear reactor U-fuel pellets! I'd like to get my hands on a couple of those. :>

What's that GRE chemistry anyway? Some "US/UK only" thing?

What's that GRE chemistry anyway? Some "US/UK only" thing?

"all of my spare time goes watching anime." Every parent should beat the anime out of their kids while they still can! >:/ (joke )

"all of my spare time goes watching anime." Every parent should beat the anime out of their kids while they still can! >:/ (joke )

"I am trying to find a cheap realiable solid propellant that is easy to make and safe to use any help would be appreciated." I'm looking for the same thing too. It's like the Holy Grail or something. Guess those KNO3 + carbon rockets won't get you to the 5000m you are aiming at. Even 2km or so would be sufficient for me. :>

"I am trying to find a cheap realiable solid propellant that is easy to make and safe to use any help would be appreciated." I'm looking for the same thing too. It's like the Holy Grail or something. Guess those KNO3 + carbon rockets won't get you to the 5000m you are aiming at. Even 2km or so would be sufficient for me. :>

"can you back that up; maybe with an experiment and well documented notes please" Even though you meant it as a joke, a good example are the actual hat makers in the 19th century or so. Somebody (YT?) explained it in some thread, just can't remember which. Probably our dear H2O2 thread that has had discussions of about a hundred different topics.

"can you back that up; maybe with an experiment and well documented notes please" Even though you meant it as a joke, a good example are the actual hat makers in the 19th century or so. Somebody (YT?) explained it in some thread, just can't remember which. Probably our dear H2O2 thread that has had discussions of about a hundred different topics.

"mercury isnt all as absurdly deadly as people make it out to be..." Yeah. It's just if you consume it enough, it builds up in your brain, making you mad as a hatter.