| P number: | P528114 |
|---|---|
| Caption: | Bottle of blue oil, an original product of the Scottish oil-shale industry. |
| Description: | Blue oil sample from the Pumpherston Oil Company Limited at Mid-Calder, a leading company in the former Scottish oil-shale industry. British Geological Survey Petrology Collection sample number MC 7722. After the second distillation the heavy oil containing solid paraffin is cooled down then passed through a filter press. The filter press separates out the crude solid paraffin from the remaining oil, this oil is known as the 'blue oil'. Blue oil is further treated and distilled to produce heavy gas oil, cleaning oil, lubricating oil and residuum oil, there are some variations depending on the type of still that is used. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Portrait |
| Size: | 79.91 KB; 758 x 1000 pixels; 64 x 85 mm (print at 300 DPI); 201 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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