What are the main ingredients in Polystyrene a.k.a styrofoam?
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Polystyrene is an addition polymer of styrene which is H2C=CHC6H5 ie an ethene molecule with one hydrogen replaced by a phenyl group.
92563
styrofoam because it is a better insulator of heat than the other materials mentioned\n\nyou do not have to be a physician to know that
32698
GFS Chemicals\n\nhttp://www.gfschemicals.com/chemicals/gfschem-5018.asp
349159
Exact composition will depend on manufacturer but this is close.\n\nABC DRY CHEMICAL- Clacium carbonate, magneisium aluminum silicate, monomonium phosphate, ammonium sulfate\n\nCO2- Carbon Dioxide\n\nHalon- Bromochlorodifluoromethane\n\nWater-  Water\n\nAFFF - Animal Protein \n\nClass K- Inorganic Salts \n\nPurple K- Potassium bicarbonate\n\nBC-  Sodium Bicarbonate\n\nClass D (Lithium Fires)-  Copper \n\nClass D (others)- Saran, magneisium aluminum silicate, sodium chloride\n\nFE36-  Hexaflouropropane
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Acrylonitrile Butadiene Styrene
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Polystyrene is soluble in acetone. Dip in in nail polish remover.
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This site has information on shaping, cutting, gluing, sanding, and painting polystyrene: \nhttp://www.societyofrobots.com/materials_styrofoam.shtml\nSince polystyrene is used for surf board blanks you can always consult the surfers who build boards:\nhttp://www.surfersteve.com/shaping.htm
1087809
Polystyrene is not bio degradable and virtually 100%water proof. It also does not allow any fungal growth also known as 'rot'. Only physical destruction can disintegrate polystyrene, so in answer to your question, no it doesn't
317532
Try here:\n\nhttp://megachem.co.jp/Structures/pdf/SM105.pdf#search='strut%20apparatus'
964473
Silica; it's what makes glass, and ceramics have insulative properties. Other than that, it would be petroleum products such as plastics, and vinyls. Rubber comes from a plant.
1064838
First tell me the ingredients then I can answer your question. Ts00agent@hotmail.com
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0.30 ml of "washing soda" or water softener\nArsenic or rat poison\nCoal\nRubbing alcohol and water\nPVC pipe\nTrinitrobenzoic acid or litmus paper\ncopper\nany food that smells, such as fruit, without being \n    cooked\naspirin\ncalcium\nstandard 1.5 volt battery\nhelium\nbutter\nhand soap\nEpsom salt\n0.5M table salt\nstumped on the NaCL questions with sodium hydrogen\n    carbonate\nammonia\n\nHope this helps
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Poly(iso-butyl methacrylate)\n\nbutyl methacrylate/isobutyl methacrylate copolymer
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ref\n\nhttp://www.cem.msu.edu/~reusch/VirtualText/polymers.htm
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Mostly silicone and manmade plastics. Are there active chemicals? No.
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Below you'll find the SPI symbol and the polymer that it represents along with a quickie description of uses for that polymer.  To learn everything you ever wanted to know about the polymers in question, just click on the name. \n\n1 -  Poly(ethylene terephthalate):  Soda bottles, water bottles, vinegar bottles, medicine containers, backing for photography film. \nWhy PETE and not PET?\n \n\n2 -  High-density Polyethylene:  Containers for:  laundry/dish detergent, fabric softeners, bleach, milk, shampoo, conditioner, motor oil. Newer bullet proof vests, various toys. \n\n3 -  Poly(vinyl cloride):  Pipes, shower curtains, meat wraps, cooking oil bottles, baby bottle nipples, shrink wrap, clear medical tubing, vinyl dashboards and seat covers, coffee containers. \n\n4 -  Low-density Polyethylene:  Wrapping films, grocery bags, sandwich bags. \n\n5 - Polypropylene:  Tupperware®, syrup bottles, yogurt tubs, diapers, outdoor carpet. \n\n6 - Polystyrene:  Coffee cups, disposable cutlery and cups (clear and colored), bakery shells, meat trays, "cheap" hubcaps, packing peanuts, styrofoam insulation. \n\n7 - The hotdog of plastics!  Products labeled as "other" are made of any combination of 1-6 or another, less commonly used plastic.
1022742
calcium carbonate...\n\ncalcium and carbon....