Document pmv46Y2kLE3vkZ2GZ47K54vmw

-URn offeyvllle 3. Soehner kug. 5 Chiosgo - T itsillariet Research September 21, 1951 Llthopone. 2185 R7, and 3ird Regular and 3ird M-b21. ft'e have ovpleted the texture testa on the various samples of 2185 KT grind snd the Bird Regular and Bird .T-U21 llthopone whioh you sulxaitted as per your letter of the atore data, Me plan to do additional work on these samples at a later date but I thought naybe you night be Interested In the r suits obtained on texturejand the results that they obtained in the Flant. ns you lata*, we rro texture on the Hoover Muller by making a quan tity of paste with the llthopone In (1), age for a given time and then weigh out given staple for naming texture to detsrains the work required to get different degress of dispersion. The result* of these tests, along with sev eral other saaples of similar types are given below. Sample - - Description (2185 is the Dry number for W-320 Llthopone). A URL Texture Grind Obtained by Revolutions 12-1/2 25 50 100 200 IsOO 2185 Regular, Lot W-U882 V-320, Lot 35230 IT-320, R7, Old Bxpt'l. Lot 1929 3.b 3.6 b.3 5.1 5.5 5.8 1112 3.7 U.U M 5.2 5.9 6.0 1162S 3.6 Li b.5 5.2 5.8 6.3 2105, H7, Lot M-U887, from $9 sample 2185, R?, Lot W-I4887, re 1928 2.6 3.5 b.2 b.9 5.b 5.5 peat trial 1926 2.5 3.3 b.2 5.0 5.7 6.0 2185, R7, Let L810B, sample from ITS? Car 136157 1938 3.3 3.7 b.0 5.1 6.0 6.b 2185, R7, Lot U883C, sample 1939 2.7 3.5 b.l b.8 5.7 6.2 Bird :;-u21. Lot P3980, old ex perimental sample Bird V-ii2lH, lot Ph891, recent test sample 11(1(7 1927 2.6 l.5b 3.3 b.2 b.8 5.8 6.3 2.66 3.b6 b.08 5.b6 5.75 Bird I16IM, Lot CI1OO8, old sample Bird 1(6111, Lot 2(092, reoent ex perimental aampla 1U63 1926 3.3 b.o b.9 5.3 5.8 6.6 2.6 2.9 3.5 b.8 5.6 6.0 0007-SWP--043827 N23287