From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter from C.C. Wakefield & Co. detailing the chemical analysis of mineral matter.
| Identifier | ExFiles\Box 145\2\ scan0078 | |
| Date | 17th October 1935 | |
| -2- Messrs. Rolls Royce Ltd. 17th October, 1935. You will observe that the mineral matter is 60% approximately, consequently there is not much left for oil decomposition products. It is interesting to note that the mineral matter contains 31% of lead oxide. The origin of this is obvious. It is also interesting to note the very tiny amount of tin oxide and chromium oxide. Yours faithfully, C. C. WAKEFIELD & Co. LIMITED. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} Evans CHIEF CHEMIST | ||