MODEL RELEASED: Low-temperature chemistry. A chemist pouring liquid nitrogen around a reaction vessel during an experiment in low-temperature chemistry. The yellow liquid in a delivery flask (centre) is one of the reagents. To the left of this is a dessicating column. This allows air into the reaction vessel,but removes the water vapour with silica gel and by condensation. At far left is a cylinder of anhydrous ammonia gas. Nitrogen is liquid below 77.4 Kelvin (minus 195.7 Celsius),and is the most common cryostatic coolant used in laboratories | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Tompkinson, Geoff |
Taille de l’image : | 3584 px × 2809 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |