9cm diameter He/Ne/Ar/Kr/Xe/N2/CO2 glass sphere Gas:Argon more N2O4 gives a colorless/pale

more N2O4 gives a colorless/pale appearance)

Under the right temperature and pressure

It appears gaseous

For more details

CO₂ can no longer be liquefied even at very high pressure and instead enters the supercritical state

9cm diameter He/Ne/Ar/Kr/Xe/N2/CO2 glass sphere Gas:Argon more N2O4 gives a colorless/pale9cm diameter Noble Gas Glass Ball Helium Neon Argon Krypton Xenon Nitrogen CO2 Please Note: This item includes only the glass sphere. To light it up, a driver circuit is required, which is also available for purchase in our store. Shipping Information We use protective packaging to ensure the glass arrives safely and intact. Your order will be dispatched within three days after purchase, and it typically arrives at your location within approximately