ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Melting point apparatus. Apparatus to determine the melting point of a substance. A small amount of the sample to be tested is placed inside one of the small sample tubes (container of them seen at lower right). The tube is placed in the top of the apparatus (one at centre) and slowly electrically heated while it is observed through the magnifying lens at centre right. When the solid to liquid transition is complete, the temperature is read from the mercury thermometer (yellow). An average of several readings is obtained. Comparison of the experimental value with standard literature values will allow the sample's purity to be estimated.
Model release not required. Property release not required.