rogerxd45

yes i have, i was just putting the exact numbers i came up with just to see if my math was correct my thorium dioxide is 99.9995% pure, it is a VERY pure sample and i weighed my thorium nitrate its actually 5.041g and the uranium nitrate is 3.871g ------------------------------------------------------------------------ so i did some googling of the equation you posted [math]\lambda = \frac{0.692}{t_\frac{1}{2}}[/math] and Lambda are you sure 0.692 is correct? everything else says [math]\lambda = \frac{0.693}{t_\frac{1}{2}}[/math] instead of [math]\lambda = \frac{0.692}{t_\frac{1}{2}}[/math] ---------------------------------------------------------------------------- using the 0.693 figure i came up with A=287637807147.583723 my question is what exactly is A? i assume its number of alpha particles emitted since thats what my question was. but whats the time frame? is that number of alpha partials emitted for the halflife of thorium or some other time frame?

so for the thorium compounds do i need to figure out the thorium content by % and multiply that by the weight of the compound? example thorium dioxide the thorium content is 89.8809% of the molecular weight of ThO2 so i have .25 gramsx0.898809 which gives me 0.22470225 grams of thorium Th has 232.038g/M so would so is 0.00096838556157267344141907790962527 moles of Th be correct? if it is correct do i multiply that number by 6.022*10^23? to give me total number of atoms? BTW this is not for homework, i just enjoy this type of stuff

so is [math]{t_\frac{1}{2}}[/math] the half life?

which of the following is the strongest alpha emitter by strongest i mean produces the most alpha particles -Americium from smoke detector -0.25 gram of thorium dioxide ((very fine powder) -2 grams thorium nitrate -2 grams uranium nitrate -radium from alarm clock, weight unknown but the clock face is about 5" and he numbers are fairly large -5 grams of U238 (5g is the total weight of several chunks of the metal) -several ounces of uranium glass (im pretty sure this one isnt the winner) -last and definitely least.... several pounds of Bismuth

shoot me a pm

so after lots of searching i have been unable to find out if it is possible to do a displacement reaction with thorium nitrate. ive done the displacement reactions with silver nitrate as well as copper sulfate. so i have some thorium nitrate that is my thorium sample for my element collection and i would much rather have thorium metal instead of a compound. is it possible and if it is what metal should i use? copper, iron, aluminium, ect.

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

no one wants any for their collection?

do a google search for it. i think unitednuclear sells it

i bought some rubidium for my collection and i bought 2 extra 1g ampules to sell or trade to other collectors so if anyone is interested i can sell them for $85 total (all costs are included in the sale price) i take paypal so if anyone is interested let me know. i have all the proper shipping material and information as to what is required to ship this safely i also have some arsenic and other hard to get elements

so i have an odd question... what would happen if you injected mercury into your body? now im sure the results will vary quite a bit depending on where the injection was and how much was injected. so if this were fatal what would be the actual mode of death be?

if you add Manganese dioxide to hydrogen peroxide it catalyses the decomposition of the hydrogen peroxide to produce oxygen and water 2 H2O2 → 2 H2O + O2 also if you want to make a lot of chlorine gas take some calcium hypochlorite and mix it with hydrochloric acid and you get lots of chlorine gas (there are other compounds besides the calcium hypochlorite but it seems to produce more chlorine gas then bleach/sodium hypochlorite) Just make sure this is done under a fume hood

well the solar 12v chargers are a lot cheaper that they make for cars, check out harbor freight. since your using 3 12v batteries there should be a way to set it up so it charges each battery individually and thus only requiring a 12v panel

ok so i have a nice arsenic metal chunk for my element collection but it is coated in a dull gray material which i assume is some oxide of arsenic well i would really like to remove the dull gray layer in order to show the shiny arsenic metal underneath (which is MUCH prettier) any one know what oxide forms on arsenic at room temp (assuming it is an oxide of some sort) or if it isnt an oxide, what is the dull gray coating and how do i remove it. any ideas are welcome, and i have both nitric and hydrochloric acid. I was going to try one of those but i figured i should check here first to find out the best method for removal and to find out what the coating actually is thanks, and i understand arsenic is dangerous and that its compounds are usually more dangerous then pure elemental arsenic. i didnt want to try to brush it off with a wire brush since that would make a nice fine dust that could be easily inhaled. So i will definitely take the proper precautions as well as proper disposal of any arsenic compounds.

first off i mean NO disrespect.... but am i the one that finds it odd that a teacher didn't know a smoke bomb is a chemical reaction?

mineral oil can be found at grocery stores.... its used as a laxative im sure there are plenty of other places to get mineral oil but the mineral oil that is fit for human consumption i would hope would be pretty pure (but more expensive)

cheap generic sex lube is clear....at least the one i have right now is, its mostly water and glycerin and a few other ingredients. its just plain "water based lubricating jelly" no flavors or anything like that and it appears to be perfectly clear to me

http://www.element-collection.com/html/samples.html is located in London (im 99% sure) he works with theo gray from the periodictable.com site where are you exactly? are you ordering as an individual or a company? lots of chem suppliers wont sell to individuals

i just clicked on the first link on the sigma search that was $108 for a gram here is one for 20 grams for 62.xx but i bet after shipping and hazmat it would be clost to if not more then the $100 shipped i asked for plus they dont sell to individuals.

sigma (which i dont know if they ship to individuals) has 1 gran for $108 plus shipping 5 grams for $151 plus shipping

all i want is for you to backup you statement about it being much cheaper elsewhere this would benifit everyone on this forum interested in alkali metals the cheapest i could find was $1,200 for a thousand grams with small amounts the shipping is what kills you, you have to pay the retailer for the meta paint type can, the inner bottle which must also be bagged and then just the actual extra cost of shipping a hazmat item. ....hell when i bought my cesium from alfa the shipping cost more then the actual 1 gram ampule and BTW im not trying to start an ardment....im just curious r

your problem is most likely the aluminum, what you want is stuff like this (not my sale and am in no way endorsing that seller it was just the first on the list) http://cgi.ebay.com/Real-German-BLACKHEAD-Aluminum-Powder-Eckart-5413-1-lb-/290478339692?pt=LH_DefaultDomain_0&hash=item43a1dbb66c ekhart 5413 seems to be the # choice but there are plenty of other options like this http://cgi.ebay.com/Indian-Blackhead-Aluminum-powder-1-pound-/290472380560?pt=LH_DefaultDomain_0&hash=item43a180c890 (its about half the price so honestly i would try that first) keywords to look for are Indian Blackhead and German and of course "pyro aluminum" be safe and please report your results

to me food and dining are great parts of life on this planet and i would not trade those experiences for a few extra years

i can get you sodium Cyanide if that will work. PM me if interested and i will need a scanned photo ID to make sure your an adult or some other way of proving your not a teenager trying to kill themself