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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.
  
  


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