MulderMan

well theres a list of online shops that would produce the t-shirts for you and other things. or just let them sell them for you to members or sumthing like that.

why dont you make your own one? get a blank t-shirt and some iron on paper...

this really depends on what you have to do with your data e.g standard deviation, mean, box plots, culmative frequency etc.

did you want to use the buffer for something specific, or did you just want to make something? theres quite a few buffers that can be made. what about the one thats in your blood (carbonic acid and bicarbonate).

although that probably would work as a solvent, i find it quite hard to breathe next to pyradine . ill give acetone a try, ran out of the good stuff so ill have to use nail varnish remv.

are the files chmodded to the usual 644? the only thing i can think of is chmod or .htaccess - its not to do with the software so it must be the server setup.

anyone got a good formula for paint removal on clothes. its enamel paint on a pair of pants. tried turps, meths but that hasnt worked. any ideas?!

do you have a school that lets you "lend" supplies !

i suppose were lucky in england then considering were forced to do science all throughout...

edit: sorry left the thread open and didnt see your post ^

yea when a metal reacts with an acid - a salt and hydrogen is produced: magnesium + nitric acid --> magnesium nitrate + hydrogen

would you be albe to get it red fuming using the aparatus hes got? youd still need some fuming sulph. aswell for nitro/

you could do something with electrolysis, do you prefer organic or inorganic chem?

nitroglycerin shouldnt be too bad to make if made under the right conditions, ive never done it nor intend to but it looks pretty straight forward. whats so bad about nitrocellulose? ive never heard of it thats all.

you just need enough to cover the gold, i just pipetted some over so it would cover. also its best to make it fresh every time, not to keep it.

medically it is said that depression is linked to deficientcies with two neurotransmitters in the brain: norepinephrine and serotonin. simply put anti-depressants act on the flow of those two neurotransmitters. towards my understanding anyway. if chemical or psychotherapy is not effective a relatively new procedure is sometimes called in - electroconvulsive therapy. dont forget though there are alot of different families of antidepressents. neurotransmitters alow electrical signals to travel accross the axon of one nerve cell to the neuron of another nerve cell as shown in the pic. a lack of neurotransmitters impairs the electrical signal, causing a breakdown of communication. hope that helps.

would you have it any other way ?! where is a good source for MSDS's - the only ones i have are the ones that came with elements that i purchased.

manganese should pose no threat, the only info I got in a msds is highly flamable. my Mn looks quite strange really, in some light it just looks like a rock, then in another it looks all shiney and glisenes.

just actaully thought about that now again and i dont know why i questioned it, its just in school i was tought that bubbling sulphur dioxide gas through water makes sulphuric acid... amazing how teachers can make extra oxygen atoms appear to suit them....

right, i always get mixed up between all the different names. is there a instruction book/list or something on how to give "propper" IUPAC names to chems?

i think he means H20, if not please share your source also as ive never come accross it either.

does anyone know the propper IUPAC name for it? or is it just hydrogen peroxide?

yep when i had braces, after i had them taken off he said i had to wear the retainer every night. but every so often i forgot and when i went to put it in agiain it was quite hard - you could tell that the teeth were trying to revert back.

forgot to say it wad kno3, good guess. they run a good ship there, i bought some iodine crystals a while ago from them for some forensics exp.

suppose so, i do know somewhere that does alkali metals in the uk but im not sure how good the price range is 10g potassium £39.40, 25g sodium £17.95. oh and i got 0.8g of mercury without hazmat!