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 analysis of 'Castraulic' Brake Fluid from Wakefield and Co.
| Identifier | ExFiles\Box 145\2\ scan0103 | |
| Date | 25th April 1936 | |
| X123/ To Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} HL1/AG.25.4.36. Laboratory. Report No.L4082. Re: Sample of "Castraulic" Brake Fluid ex Wakefield and Co. Distillation of the above sample yields 46%, by volume, of distillate boiling mainly at 78-79 °C. The distillate is soluble in water and has a specific gravity of 0.830. The characteristics of this material are similar to those of impure Ethyl Alcohol, i.e. Industrial Methylated Spirit. The residue from the distillation is pure Castor Oil. Allowing the usual 2% loss on the distillation, this material would appear to be a mixture of 48% Industrial Methylated Spirit and 52% Pure Castor Oil. Hl. HE | ||