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).
Laboratory analysis of a petrol sample containing 11 1/2% benzole, detailing distillation and composition.
| Identifier | ExFiles\Box 20\6\ Scan073 | |
| Date | 16th January 1925 | |
| C O P Y. Hs.{Lord Ernest Hives - Chair} for Mr. Robotham. H15/EA16.1.25. Laboratory. RE. SAMPLE OF PETROL CONTAINING 11 1/2% BENZOLE. Distillation :- Specific gravity .712 Initial boiling point -------- 38°C Final boiling point -------- 183°C Residue -------------------- 1.5% Total distillate ----------- 97.5% Loss ---------------------- 1.0% Temperature. % distillate. 70 ------- 4.0 80 ------- 18.0 90 ------- 38.0 100 ------ 58.5 110 ------ 73.0 120 ------ 81.0 130 ------ 86.5 140 ------ 90.5 150 ------ 92.0 160 ------ 94.0 170 ------ 95.5 Analysis. Olefines and di-olefines ----- 9.8% Aromatic hydro-carbons ------- 25.2% Paraffins and cylco-paraffins -- 66.0% H1. | ||