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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 report on the distillation and analysis of a 50/50 petrol-benzole sample.

Identifier  ExFiles\Box 20\6\  Scan072
Date  16th January 1925
  
COPY. Y985

To Hs.{Lord Ernest Hives - Chair} for
Mr. Robotham.

C.F Rs{Sir Henry Royce's Secretary}

H16/EA16.1.25.

Laboratory.

RE. SAMPLE OF 50/50 PETROL-BENZOLE. Y985 Y53

Distillation:-

Specific Gravity .815

Initial boiling point -------- 40°C
Final Boiling point --------- 213°C
Total Distillate ---------- 97.5%
Residue -------------------- 1.5%
Loss ---------------------- 1.0%

Temperature.

% Distillate.

80 ---------- 3.0
90 ---------- 28.0
100 --------- 52.5
110 --------- 65.5
120 --------- 73.5
130 --------- 80.0
140 --------- 83.0
150 --------- 86.0
160 --------- 89.0
170 --------- 91.0
180 --------- 93.0
190 --------- 94.5
200 --------- 95.5

Analysis.

Olefines and di-olefines ----- 31.2%
Aromatic hydro-carbons ------- 31.4%
Paraffins & cyclo-paraffins --- 37.4%

H1.
  
  


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