Chemistry

Summary

 * The Chemistry unlocks at Area 13 and costs 3000 coins
 * You can boost Crafting floors 12 hours for 10 gems
 * The best possible speed for making Refined Oil is as follows (note that it is idealistic, and no real player can maintain this without software assistance):
 * Set 2 chem stations to making clean water and 3 to hydrogen, and 1 to refined oil.
 * This produces 1 refined oil and 2 hydrogen every half hour.
 * The remaining two stations will change roles periodically. The idealised setup is both to pure water, then in 30 minutes both to hydrogen, then in 15 minutes back to water.  This produces 8 hydrogen every 45 minutes.  Combined with your baseline 2 hydrogen per half hour, that's 11 every 45 minutes.  If you then wait until you have 110 hydrogen, which will take 450 minutes, or 6 hours and 40 minutes, you can then make two refined oil and restart.  You can do this over more time, so it's less of a hassle.
 * This makes 2 refined oil every 480 minutes, or 1 every 240, which is one every 4 hours. Combined with the base rate, that's 9 every 4 hours, or 1 every 1600 seconds.
 * You can approximate this rate and save yourself some sanity by instead setting the two spare stations to water and hydrogen, producing 1 water and 4 hydrogen per half hour, which, added to your baseline, is 6 hydrogen per half hour; when you have abundant water and hydrogen, change the water station to refined oil, so you consume consume 4 hydrogen and 2 water every half hour. When you run out of water, which you will first, change the hydrogen station to also refined oil, and when you run out of hydrogen, set both back to water and hydrogen.