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).
Letter from Imperial Chemical Industries Ltd. concerning Ethylene Glycol as an anti-freeze, including its suitability, mixture recommendations, and pricing.
| Identifier | ExFiles\Box 151\3\ scan0115 | |
| Date | 6th December 1929 | |
| COPY OF LETTER RECEIVED FROM:- MESSRS THE IMPERIAL CHEMICAL INDUSTRIES LTD. Morley House, London Road, LEICESTER. Our ref: AAS/MWW Your ref: Roy{Sir Henry Royce}13/MG18.11.29. 6th December 1929. Messrs Rolls-Royce Ltd., DERBY. Dear Sirs, With reference to your letter of the 18th ultimo relative to Ethylene Glycol as an anti-freeze; we regret the delay in giving you the desired particulars, but this has been due to the fact that our Works have been examining the product from the point of view of your requirements. They now state that Ethylene Glycol would be quite suitable for use in Chassis Radiators, and so far as they are aware, it would not have any deleterious action on the joints in your cooling system or on the cylinder heads and radiator tubes. For your information, we append suggested mixtures for use as an anti-freeze, together with the various freezing points. For ordinary purposes, a solution which does not freeze above 20° F.{Mr Friese} is sufficient (that is, 17½ Glycol by volume) to fulfil these conditions. % Glycol by volume. Freezing point °F.{Mr Friese} 10 27 15 22½ 20 17 25 10 30 3 35 -5 40 -15 We very much regret being unable to make any reduction on the quotation you have for this product, that is:- In 50 gallon lots ... £100. per ton. net, delivered to your Works in drums, which are returnable when (cont) | ||