Supercritical CO2 Fluid Glass-sealed Carbon Dioxide Shake the sphere firmly before

Shake the sphere firmly before use so the metal salts inside are more evenly dispersed

If you need the driver/base

a paraffin with a precise melting point of about 28°C (82°F)

Glass tubes filled with noble gases，Pure Gas can give very good glow

13cm diameter glass sphere filled with He/Ne/Ar/Kr/Xe

Supercritical CO2 Fluid Glass-sealed Carbon Dioxide Shake the sphere firmly beforeCarbon dioxide is sealed inside a glass tube. Below 31C, CO is in a liquid state under high pressure. When the temperature rises above 31C, CO can no longer be liquefied even at very high pressure and instead enters the supercritical state. Therefore, above 31C you can observe the fourth state of matter: the supercritical state (https: en. wikipedia. org wiki Supercritical_fluid). How to use Below 31C, you can see liquid CO inside the tube. Gently