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).
Freezing point curve graph for glycerol and water mixtures.
| Identifier | ExFiles\Box 151\3\ scan0071 | |
| Date | 1st March 1929 guessed | |
| FREEZING POINT CURVE GLYCEROL WATER MIXTURES, TEMP °F +62.6 +50 +32 +14 -4 -22 -40 -58 TEMP °C +17 +10 0 -10 -20 -30 -40 -50 % GLYCERINE 20 40 60 80 100 | ||