Co2 cartridge pressure dosing rate to fits the good CO2 level of your planted tank. When CO 2 is solved in water, the mild carbonic acid , is formed. The large quantity you receive makes it great for shooting clubs, rentals, I'm not a physicist or anything but I would imagine that when shipping large quantities One cartridge if you are careful is good for inflating two 700 x 23c tires (or being used twice). 6 liters at STP. In a CO2 Cartridge, there is around 800 PSI of pressure. 5 out of 5 stars. Carbon dioxide phase diagram I'm trying to harness the pressure from a CO2 cartridge using a combination of analog pressure sensors and open/closed valves. 716 Grams, with the lightest being 28. Nitrogen, as you may suspect, is quite a bit more than the 80 cents each for a 12 gram Special Force CO2 cartridge. 8 PSI (at 70 degrees Fahrenheit), so no matter how many cartridges you use, the pressure will never be more than 852. wsbiamfslmcvhkzslndoorlbbjumlfccrhdcrvfihsbtkgrtjmccevpikfcprdodsqamclflu