What two chemicals do I have to mix to make expanded polystyrene foam?
596556
phenylethene and di(dodecanoyl) peroxide, in boiling water for 30 minutes, carry this in a fume cupboard
485893
Check on the internet for the ratios used by comercial factories, then prepare a solution from glycol and water in the given proportion. That's all!!!
1034078
You could do a base and acid mix and explain the reaction, such as vinegar and baking soda.\n\nAlso the erupting marshmallow mixture is pretty cool... and edible.\n\nCheck out this link for a bunch of cool activities you could do.\nhttp://www.calstatela.edu/dept/chem/chem2/LACTE/K12.html
607804
The easiest way to prepare an insoluble salt is to produce it from two aqueous solutions each containing an ion present in the salt!\n\nSo, you'll just mix two solutions, and the insoluble salt appears! Of course, if you intend to prepare a certain amount/ mass of the salt, you may need to carry out some calculations to determine the necessary concentrations/ volumes of the 2 initial solutions. \n\nYou'll also get another product in the reaction, but it should be soluble and will not contaminate the desired product (the insoluble salt).  \n\nYou may refer to this website to gain a better understanding...\nhttp://www.wpbschoolhouse.btinternet.co.uk/page01/AqueousChem/AqueousChem.htm#salts [Refer to point (4)]
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Easy!\nStir the mixture into water. Sand sinks. Styrofoam floats.\nScoop the Styrofoam off the water surface with a strainer.\nPour off the water.
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go to this website...................... \n\nhttp://www.sigmaaldrich.com/Local/SA_Splash.html\n\nSigma-Aldrich has a very large variety of chemicals in small or large amounts.
650250
Styrofoam is made of (drumroll, please) polystyrene. For about as much information as you could possibly want on polystyrene, check out the Polystyrene Packaging Council. There, you'll find general facts, production information, tips on recycling, and articles trumpeting polystyrene's low impact on the environment. \n\nPolystyrene Packaging Council:\nhttp://www.polystyrene.org/\n\n\nStyrofoam ® is a  Dow Chemical Co. trademarked form of  polystyrene foam insulation, introduced in the U.S. in 1954. Styrofoam® is a trademarked name, the real name of the product is foamed polystyrene. \n\nRay McIntire invented Styrofoam for the Dow Chemical Co.. McIntire said his invention of foamed polystyrene was accidental. His invention came as he was trying to find a flexible electrical insulator around the time of World War II. Polystyrene, which already had been invented, was a good insulator but too brittle. McIntire tried to make a new rubber-like polymer by combining styrene with isobutylene, a volatile liquid, under pressure. The result was a foam polystyrene with bubble, 30 times lighter than regular polystyrene. source The Detroit News \n\nhttp://inventors.about.com/library/inventors/blpolystyrene.htm
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polymerising capro lactam.\n\nYou can try this link for some info on nylon. Otherwise the process goes like this :\n\nLactam > Crusher & Melter > Prepolymeriser > VK tube > Ageing > Granulator > Wet chips > washing tower > washed chips to vacuum dryer > dry Nylon 6 chips
806753
Are there any tests you can run? Usually if you mix a substance with something else, the product has different chemical and physical properties than the initial substance.\nFor example, let's say that you would mix isoamyl acetate with "X" the product will have certain carachteristics gained only after it was mixed with "X".... I don't know how much this will help...\n\nLook it up on the internet, I am sure you'll find something.\nGood luck.
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Well i can't paste that on here for you...but consult this link; http://www.abb.com/GLOBAL/NOOFS/noofs187.nsf/viewunid/713C646EB0A24CCBC12569EE0036977F/$file/PS.pdf#search='MAKING%20POLYSTYRENE%2C%20process%20flow%20diagram'\n\nIf u can't access via the above link, go to http://www.search.abb.com Then type 'making polystyrene' or :PS Web 2001" Folow the first link...its a pdf file.
454303
Use cocoa powder.  To stretch it mix it with your talcum powder.
221514
Clean, melt, and remold
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A very small amount or until you get the form you want.  If you are copying a commercial formula, there may be a fourth ingredient.\n\nhttp://www.environmentalsciences.homestead.com/makeyourown.html\n\nNote that pine oil is not totally harmless\n\nhttp://www.home-air-purifier-expert.com/household-chemical.html#Floor%20Cleaner\n\n*************************************\n\n\nTo get what end product?
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Go to this Web site: \n\nHistory and Uses of Polyurethane Foam by Lance Ewing @:\nhttp://members.aol.com/profchm/ewing.html
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add 2 parts HCl 1 part H20 to dilute properly
174012
try the old fashion baking soda and vineger trick! they have a chemical reaction and foam up. thats what i did back in middle school.
398777
Please mix bicarbonate with wood ash and use it biweekly