Document k9GByG9wdRB6x5doz4BNnO06J
SC. Loius, Mo
L. K. Bor111 Research 2
April 8, 1953
H. K. Nason XX v3-<Ta.
F. B. Zienty rier. 0. JeGanao Crev: w J. Manner ccu-.l
R. Jense
MO '/
J Trotter MO V
-P. Benignus MO V
Aroclor-LIndane fonwl&tloao
Ihe evaluation of Aroclor-Lindaae mixtures was discuased this
ming estd a tentative prograit hm been agreed upon*
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Bie first etap will be to run laboratory trial# against la-
see to at Grove Coeur to establish the direction of further investi
gations.
H three formulations which m would like to ask you to have
prepared for preliminary work art outlined It is planned to apply these as water omuls ions and to use xylene as the solvent <,
and goalsifler 1 for emulsification. A stable enulaion is f tmm
ieacm here than a slight news of emulalf ler* We made up a small quantity wing ttee additives and they appeared to work reasonably well In order to avoid any volltalizatIon of the active ingredient it would fee desirable to diasolv the lindane and Aroclor In the xylene ratter than to fuse them* at least for toes tests*
We would like to have the ease proportion of ingredients in each formation regardless of whether this is required. Since Aroc lor i9> CO has fete lowest solubility in most organic solvents it is suggested that you sight start with this material After adding the required amount of xylene and other components will you
add Just enough more xylene to bring the weight f the formulation
to an even figure where we can quickly calculate dilutions of lin dane. Xt would be desirable to prepare as high concentrations of lindane-Arcs lor as possible and still maintain a viscosity that can be handled with a pipette, even though we will of course make dilutions on a might basis fhe percentage of active ingredient in the formulation is of no great concern at the moment and will depend on what you find feasible*
Samples of 50-75 grams of foresalatloa will be adequate*
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#1 Aroc lor 5% 60 and lindane 1-1 ratio .
t jXylene
; Emulsifier fc
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#2* Arcelor 125% *
: . S&m m #1
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#3* Aroclor 12%8 Same as #1
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DSW 197453
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HARTOLDMONOOQ5482
L. B Koi`i 11
(2) April 8, 1JS.5
ArrcogeisientB have already been ml to have shipped from
MItro a quantity of each of these Aroclors, and I believe you
have iossae high analysis lindane Vi 11 you. mk. Prod Hacker to send these Anniston shipments ever to you m sea m fch^y arrive?
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. Philip P. WlMm
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DSW 197454
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HARTOLDMONOOQ5483