CC: Dr. J. F. Daley - Dr. C. H. Greene
  
                                   walt - Pigments - Wilmington
                                Dr. J. E. Booge
                                Mr. I. J. Krchma
                                XX File


                           Newport, Delaware
                           May 7, 1946


MR. F. H. WEISMULLER [Gen. Mgr.]
PIGMENTS DEPARTMENT
WILMINGTON OFFICE


                    HYPER PURE SILICON XX


      Reference is made to your letter of May 1st requesting informa-
tion on production and sales of cur Hyper Pure Silicon XX.

      The XX unit as installed in A-21 was capable of producing 100 lbs.
per month of refined silicon.  While sales of the material during
the war did not demand such a rate, it could have been achieved readily.
Purification of the crude production was the principal bottleneck and
it is believed that if that step were carried out in a separate room,
an ultimate production rate of 200 lbs./month would not be impossible.

      Our stock of silicon, aggregating some seventy pounds, was be-
lieved to be a sufficient reserve to allow us to dismantle our pro-
ducing unit in order to provide more research space.  The bulky equip-
ment is now in storage in A-57.  Power lines, transformers, and control
instruments were not disturbed and the entire unit can be reassembled
when necessary on reasonable notice.

      Attached herewith is a list of the electrical companies and
research laboratories to whom we made deliveries of silicon.  The
principal use for silicon was in the manufacture of small rectifiers
in radar equipment.  It seems to us that all manufacturers of electronic
devices, e.g., radar, television, industrial control etc., are potential
customers and should be contacted.  It might be in order to send out
samples to those laboratories who do not already have our silicon in
order that they may study its properties and develop new uses.


                               [signed]
                              C. M. OLSON
                         RESEARCH DIVISION HEAD


CMO:JP
[p. 2]


Westinghouse Electric & Mfg. Co.                (162 lbs.)

   Miss Barbara M. Joyce (buyer)        2519 Wilkins Avenue
                                        Baltimore 3, Maryland

   Dr. J. S. Angelo   )
   Mr. P. R. Kalischer)                 East Pittsburgh, Pa.

Massachusetts Institute of Technology           (42 lbs.)

   Radiation Laboratories
   Dr. H. C. Torrey                     Cambridge, Mass.

General Electric Company                        (24 lbs.)

   Dr. Harper Q. North                  Research Lab., Schenectady, N.Y.
   Dr. C. F. Baldwin                    Campbell Avenue Plant, "    "

Sylvania Electric Products Company              (130 lbs.)

   Mr. C. E. Johnson  (buyer)           12 Sylvan St., Danvers, Mass.
   Research Laboratories                60 Boston St., Salem, Mass.
                                       234 Bridge St., Salem, Mass.

Bell Telephone Laboratories                     (8 lbs.)

   Dr. E. E. Schumacher                 Murray Hill, New Jersey

Admiralty, England                              (25 lbs.)

   Ordered by Navy Dept. - Bureau of Supplies and Accounts

Commonwealth of Australia                       (10 lbs.)

   Mr. T. H. Skelton                  War Supplies Procurement
                                      1700 Massachusetts Avenue, N. W.
                                      Washington, D. C.

British Thompson Houston                        (60 lbs.)

   Sent to E. C. Kelley - B.A.C.      Shipping Div. - 17th Floor
                                      37 Wall Street, New York, N.Y.

      (Suggest contacting main research laboratories)