Document 91jv29nYYj1B9zjb1DzEnkrDR

E. I. PU PONT DE NEMOURS & COMPANY KREBS PIGMENTS DEPARTMENT 256 VANDERPOOL STREET NEWARK, NEW JERSEY Serial Mo. KBT-51-2L Copy No. l. Numerical Pile NEWARK PLANT PIGMENT COLOR RESEARCH REPORT Pinal Report (Laboratory) I 'n TURQUOISE ELSE LAKE ("POHTAMIHE" PAST TURQUOISE 8 OL) i x. Period Covered APRIL, 1949 H NJ #747 FILE: DATE: 2S3.41 4-30-51 Copy Sot Serial So. KH-51-81 Copy Ho# i4 Numerical File HBHAHS PLABT PIGME8T COW RESEARCH REPGRf Final Report (Laboratory) fTJRQTJOXSE BLUE tAOff ("POmMUIEtt FAST DDHQUOISE S 0L) , APRIL, 1940 Charge: ll(0J*ii*St BAfl ISSWi 4/so/si DUP050068519 The laboratories of "Tims" Itoo#. expressed interest in KS-183~type lakes, made from "Fontamine* Past Turquoise B0L, but seated a less reactive product* An attempt mas made to provide such a pigment* t A lake conslating of 4027 grams of paste of 18l solids mas made* using a non-reaotive type alumina hydrate instead of tin hydrate used in SB-183-fc* Bo quality testa sere run* msAimt She KB-183b prooeas sas Obtained by phone from D.B.Killian*e notebook at daeksoa Laboratory. The all-soda-ash type alumina hydrate used in KB-183b sas ehsngsd to the SF-23, aoda-aah-phosphate typs, reputed to be non-liverlng. The strike sas straightforward. The entire sample sas turned over to Sales Service* Ho tests sere made because no standard and no tost method wars available* HB-1313-31 Letter, A* A* Briazolora to W P* Spengeaan, April I5f 1949 OPOSllg DUP05006S520