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Alexein

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About Alexein

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  1. Sorry everyone, I'm going to deprecate this experiment and do the more advanced one as instructed. Therefore: DO NOT FOLLOW THE EXPERIMENT IN THE FIRST POST The experiment is wrong and not of the quality expected in this forum as pointed out in the discussion. The absolute last thing i want is to be posting sub-standard videos seemingly done by a high-school moron showing the wrong techniques. I'm currently working on the correct video demonstrating the creation of actual gelatin film with real chemicals and machinery as well the use of actual developer solutions and processes. So once again DO NOT FOLLOW THE EXPERIMENT IN THE FIRST POST!!! Hopefully a mod will come along and delete it. (the first post, not the whole thread, there is good info in the rest of the thread)
  2. I looked it and my reason doesn't violate the rules, it's not spam, advertising or violation. So i probably can't get it deleted. Sorry for the trouble. I'll just put an addendum on the thread asking people to ignore it. Thanks.
  3. Is there a way to delete your own thread? I realize one that I posted was rather childish and I would like to remove it to keep the high standard of the forum.
  4. I am fully aware of those methods (i even say in the video that "modern photography is better and faster"). But i needed to find a balance between making it easy to understand and follow, and doing it right. I choose the former. The point of the video was just to show the basic idea in the simplest way i could think of. It was NOT my intention to do it the best/cheapest way. Not everyone has a darkroom or the patience to attempt this. My intention is something that even a high school or a grade-school science teacher could demonstrate, or some kid for his/her science fair project. So I needed a way to demonstrate photochemistry in a dramatic, but extremely simple way. Handling multiple steps of chemicals and worrying about premature exposure to light would add unneccessary complications to a simple experiment. I think using the silver chloride as-is without additional developing/fixing steps really emphasizes to the kids that it's the sillver chloride that does all the magic of photography, the rest of the chemicals are just improvements. making the silver chloride seperately and putting it ontop of the paper, rather than making it part of the paper itself, emphasizes once again that it's the silver chloride that does the magic. Before, when i did it part of the paper I once had someone ask me how the silver chloride alters the paper... They didn't realize it wasn't the paper that was taking the photograph, it was the silver chloride, the paper was just support. By simply using a powerful lamp, the darkroom is less of a requirement and allows a teacher (or a resourceful kid) to demonstrate the whole experiment on the tabletop. I am planning on making a more advanced photography experiment using the proper chemicals and techniques. Kind of like a "part 2" video for more advanced individuals. But if ya think i'm bastardizing the field i'll remove the current video. Last thing i want is to offend the experts.
  5. Silver chloride is photosensitive, it will darken when exposed to light. This serves as the basis for photography and has only recently been replaced by the digital age. The concept can be demonstrated by making silver chloride from silver nitrate and table salt. Then spreading it out and exposing it to light while placing something to be "photographed" over it.
  6. I made some of my glow stick experimenst into videos: <--- Simple reaction in a vial <--- Scaled up to two LITERS <--- Complete assembly of a glow stick
  7. most dialkyl phthalates (of which diethyl phthalate is a member) will work. ethyl acetate also works. but that glow lasts for about 2-10 minutes. If you can't get your hands on a dialkyl phthalate i don't reccomend expending the effort on getting the other materials. TCPO is expensive, even if you make it yourself, and not using a good solvent is like buying a sports car and never driving it.
  8. Yes it is. And i highly reccomend getting it if you want a nice long-lasting glow.
  9. flamming jelly from vinegar, calcium carbonate, and rubbing alcohol. Not exactly Napalm but tad more interesting than just burning liquid alcohol: Somewhat dangerous because it produces small amounts of chlorine gas, but making chemiluminescence from pool chlorine and hydrogen peroxide: Sodium acetate, (yea it's been done to death but might as well jump on the bandwagon...) And polishing silver using electrochemistry (nothing special, just the classic silver reduction by aluminum foil) EDIT: CR*P! I just realized this was an Organic chemistry forum, if the inorganic reactions are too off topic i'll chuck em.
  10. a gas washing bottle? http://www.chemglass.com/search_category.asp?category=C04&subcategory=S084 Or a gas dispersion tube? http://www.prismresearchglass.com/product.aspx?productID=600&gas-dispersion-tube
  11. Gotta click the "more info" link in the box on the right side of the video. Just under the date and name and just to the right of the "NURD RAGE" icon. As for the color, i'm not quite certain how to clear it up. slow recrystalization might give you highly pure crystals that you can filter off to leave behind the yellow crud. If you're going to go as far as use activated charcoal, i think you might be better off just buying the pure sodium acetate from ebay. you can get it by the bucketload there.
  12. This video might help ya: Read the info bar at the side. It goes into much more detail and gives exact measurements of baking soda for the various percentages of vinegar. You'll need a scale though.
  13. dude, read the topic. He's asking about CARBON. not carbon dioxide.
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