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).
Requesting the correct chemical symbol and weight for Sodium Phosphate to be used in radiator cooling water.
| Identifier | ExFiles\Box 15\1\ Scan174 | |
| Date | 26th November 1929 | |
| X-7250. Hs.{Lord Ernest Hives - Chair} BY15/N.26.11.29. Re: Radiator Troubles. Will you kindly let me have the correct symbol in which to order the Sodium Phosphate for use in our cooling water(dehydrated form) as I am doubtful which of the four phosphates of sodium we are using. If it is the common phosphate Na{Mr Nadin}2HPO4 4H2O then we should specify clearly if we dry out to Na{Mr Nadin}2HPO4 or carry temperature up to form Na{Mr Nadin}4P2O7 In addition please give the weight for one charge as dehydrated so that we can order up a supply of material in tabloid form and send them out to customers. If the bulk is likely to be too great in one tabloid we should make it up in two tabloids per dose. BY.{R.W. Bailey - Chief Engineer} B Y | ||