Acc. 1998.0061 Olson Papers SILICON 1942

Home Search Chip Talk Chip Fun Patents People Pictures Credits Copyright Comments

Transcription of original document
KHB
CC: Mr. M. L. Hanahan
Dr. C. M. Olson
Dr. F. Seitz Mr. E. Lewis

Newport Delaware
August 21, 1942


CLASSIFIED-CONFIDENTIAL
 
SILICON NOW ON HAND

ZINC - BUNKER HILL 99.99%
 
Code
Treatment
Wt.-Gms.
Notes
RZ 26-28*
Dry; HCl
106.0 )
RZ 26-28 comp. divided after ) HCl treatment - A portion,
RZ 26-28A
Dry; HCl; H2SO4 + HF
75.5 )
RZ 26-28A HF treated.
RZ 29B*
Dry; HCl
38.0
 
RZ 29C
H2SO4; H2SO4 + HF
16.0
 
RZ 32*
H2SO4; HCl
133.8
Contains white particles. Possible cement from end plates.
RZ 33*
H2SO4; HCl
44.8
 
RZ 37A
H2SO4; H2SO4 + HF
12.3 )
 
RZ 37B
H2SO4; H2SO4 + HF
29.0 )
Contains small pieces ) silica - derived from
RZ 37C
H2SO4; H2SO4 + HF
10.5 )
broken tubing.
RZ 37D
H2SO4; H2SO4 + HF
39.9 )
 
RZ 38*
H2SO4+HF;H2SO4;HCl
57.0
 
RZ 39*
H2SO4+HF;H2SO4;HCl
39.2
 
RZ 40*
H2SO4; HCl
50.4
 
RZ 41*
H2SO4; HCl
 52.2 
 
 
TOTAL
704.6 gms.
 
       
* Small samples have been retained.
ER:


National Museum of American History
Home Search Chip Talk Chip Fun Patents People Pictures Credits Copyright Comments