Chemical apparatus used to purify chemicals
Numéro d’image : 11904806
| Chemical equipment. Engraving of equipment used to purify chemicals by sublimation. This process involved heating a solid until it turns into a gas,leaving impurities behind. The gas turns back into a solid (the sublimate) when it is cooled. In this image,the rounded flask containing the original sample is at left. After the flask was placed in a furnace,the bell- shaped receptacle (at right) was connected to the flask to collect the sublimate. Image taken from a 1545 book which credited the design of this equipment to the Arabic alchemist Geber (721-815) | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library |
| Taille de l’image : | 3421 px × 3543 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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