| MadSci Network: Engineering |
I must begin my reply with a warning in capital letters: WHAT YOU ARE DOING IS DANGEROUS AND CAN SERIOUSLY HURT YOU!!! I DO NOT RECOMMEND CONTINUING THIS EXPERIMENT BECAUSE OF SERIOUS HEALTH AND SAFETY CONCERNS!!! The grade of dry ice that you are using can have impurities in it that can and will make you very sick when dissolved in a beverage!! It is also very difficult to meter out the correct amount of dry ice into the bottle without causing explosions that can and will cause high speed projectiles to fly through the air!! Please take my advice and learn more about the process of making soda using a gas cartridge carbonation system. This type of system can be purchased in any gourmet store. Now just for intellectual curiousity, here are the answers to your question: 1. A typical 2 liter PET bottle is designed to blow out at the cap threads with 150 psi. 2. A typical 2 liter carbonated soft drink (csd) contains approximately 35 psi at 45 degrees F.
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