stormyweathers Posted August 22, 2009 Share Posted August 22, 2009 is there a general ratio for mixing PVC with color additives to maximize color and resources?[i am using copper, barium, and strontium carbonate] Link to comment Share on other sites More sharing options...
stormyweathers Posted August 22, 2009 Author Share Posted August 22, 2009 well the lack of a timely response led me to try to figure it out on my own.can someone confirm my hypothesis? PVC has a formula of [CH2-CHCl]nso for every 62g of PVC, there is one mol of chlorine since the carbonate salts need to convert to chloride species [baCl+] etc.there is a one to one molar ratio of carbonate salts to PVC[the exception being copper carbonate, given that it is a basic salt with the formula CuCO3*Cu(OH)2] using this method i have extrapolated the ratios to be Ba:PVC----3.2:1Sr:PVC----2.4:1Cu:PVC---1.7:1 by mass of course i would imagine having a slight excess of PVC because it is much cheaper than the salts Link to comment Share on other sites More sharing options...
TYRONEEZEKIEL Posted August 22, 2009 Share Posted August 22, 2009 (edited) well the lack of a timely response led me to try to figure it out on my own. Too bad my answers don't always promptly return in 46 minutes... Great information to know anyway. Hopefully all the metal converts as well as planned. Edited August 22, 2009 by TYRONEEZEKIEL Link to comment Share on other sites More sharing options...
stormyweathers Posted August 22, 2009 Author Share Posted August 22, 2009 well i had meant to ask earlier, and as i was actually making the comps today i didnt have time to wait around.so the impatience was self-inflicted:] Link to comment Share on other sites More sharing options...
TYRONEEZEKIEL Posted August 23, 2009 Share Posted August 23, 2009 Haha. No problem. I often find myself in a pinch like that. My first aerial shell flopped because of that same reason. Link to comment Share on other sites More sharing options...
Miech Posted August 23, 2009 Share Posted August 23, 2009 I found especially carbonate colored formula's get way better color saturation when there is a rather large overdose of chlorine. Keep in mind that PVC has some value as fuel, unlike parlon, so you need to oxidize it enough to prevent slag and fallout. Link to comment Share on other sites More sharing options...
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