Document KJqJvNEky1vMyv6Yx4zx9VaXr
FILE NAME: Johnson & Johnson (JAJ)
DATE: 1967 Nov 1
DOC#: JAJ041 DOCUMENT DESCRIPTION: Report - Metropolitan Talc, Preliminary Evaluation
M etropolitan Talc
Lot 0 716
*
Prelim inary valuation
tiov/ Brunswick th J. Sov.1,19^7
The ta l c used fo r t h i s e v alu a tio n was produced in th e P la in f ie ld ^ le n t and "was d e liv e re d to us "by
Xr. Ton P erry about Cot. 1 , 1967.
Perfuee d e ten tio n a ri Arose t
The Metro ta l c shows g r e a te r re te n tio n fo r perfume then does our Vermont t a l e and tha in d ic a tio n s are th a t the ra te of escape is very close to th at devloped w ith I t a l i a n t a l c . We ran a g ra v im e tric r a te
lo s s t e s t on ta lc s c o n ta in in g ljS ?-5 In open d ish ea
and find the ra te loss very close to Ita lia n ta lc a t
b o th 70 and 10OP fo r the Metro and s ig n if ic a n tly f a s te r
f o r th e Verm ont.> (Graphs 1 4 2} The Metro ta lc does n o t show the chalky note
under circum stances which c r e a te th a t arcs in Vermont ta le s , Since the o rig in a l problem in perfumery developed
a t a lew dose o f ?-5 we e le c te d to s a t up a sto rag e
t e s t w ith the th re e ta le s ( I ta li a n , Vermont,Metro) and P-5 a t 0 ,1 ? incubated a t 120? f o r th re e weeks* The Vermont a r t i c l e develops a chalky tone whereas th e o ther two did n o t.
The above te s ts lead us to believe th a t the
commercial dose o f e ith e r ? or ?-5 would provide e
s a ti s f e e to r v aroma l i f e w ith Metro type t a l e . Our te s t s were lim ite d in th a t we d id n o t in d u c e the n e u tr a liz e r a t th is point.
Chen:leal and P hysical P ro p e rtie s Sxcept fo r fin en ess th e Metre ta lc f i t s the
p h y s ic a l c h a r a c te r is tic s which we fin d adequate. (Table 1 )
The shipment on hand i s s l i g h t l y on th e couate s id e ; a s lig h tly increased grind should bring i t into range.
X ineralogically the ta lc i t predominantly p iety AS
Protected Doeufnentp"Subjctto PretecBv Ordar
rock Is norm al. O p tic a lly , by c o u n t,th e product is a t le a s t 935' te le plus 3-5% D oloalta and o r le s s o f T re jte U te , 7h* a s s o c ia te rain srais a re lib e ra te d from- th e t a l c c r y s ta ls .
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The ta lc has high, s l i p , good flow c h a ra c te r
f:
and Is remarkably w hite. I t is probably the w h itest
r
cociinerc laXly a v a ila b le t a l c which we have observed-
'
a t the 200 raesh grind le v e l .
i
The carbonate fcolomite is a c tu a lly calcium magnesium carbonate-. This assay s about $% using th e stro n g a cid method and c lo s e to 6}S using the t i t r a t i o n method. T his carbonate le v e l re q u ire s up to Vt o f s e s q u lc ltr a ta to raaln tein our h is to r ic pH lim its in the fin ish e d product, A 1# n e u tr a liz e r c o n ten t Is p r o h ib itiv e ly high. Sesquicitrsfce in th e O.E# a re a b rin g s the i n i t i a l pH o f the product e lo sa to n e u tr e l and th e re n ig h t be some m erit in c o n sid e rin g such a product but of course th e e f f e c t would be to d r i f t up to the higher a lk a lin e ranges over the 18 h r c o n tro l t e s t we now u se . ( Graph 111)
Tela Souroa and ?rcoessi.r.5r
The t a l c ore processed in P la in f ie ld comes from the d e p o s it in tfadoc O ntario which we explored a t depth some years ago*
The Xadoc d e p o sit has a l o t In common w ith I t a l i a n ta l c from the g e o lo g ic a l ar.d m ln e ra lc n ica l points of view.The a sso c iate m inerals in the d i s t r i c t a re very s im ila r and the c r y s ta l h a b it of the ta lc s are a ls o very s im ila r to the I t a l i a n s itu a tio n . Thus th e re would be every reaso n to expect th e two ta lc s to n e rfo ra about the same when th e i r p ro cessin g conditio n s were reasonably c lo se .
The Kadoc d e p o sit is a r e la tiv e ly la rg e source o f ta l c b u t I t contains se v e ra l grades o f ore which are given d i f f e r e n t names. The h ig h e st grade up th e re i s the Henderson se c tio n and i t is th a t s e c tio n which is p re s e n tly b e lrg worked to supply th e crudes fo r the P la in f ie ld p l a n t. As f a r as we know th e re se rv e s a t Xedoc were o f the 150,000 ton o rd er fo r the Henderson type a t th e 600 fo o t le v e ls .
The p ro cess used to upgrade the ta lc i s based on e le c tr o s ta tic sep aratio n . This Is a cry process so , . th e re would be no e f f e c ts r e s u ltin g from wetting or ' ' ' f l o t a t i o n reag en t ry .
Kext Stens
Hr. P.ussell and I s h a ll be v is itin g Xr. Ferry a t th e F la in f ie lc p la n t in tha next few d a y s. Vs -.-.-ill get an Idea o f th^ c a p a b iliti e s er.c d e tsrv .ire v.-v.-r. is
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involved in reducing th e carbonate le v e l and making arrangements fo r a couple tons of i t
for a large scale run. .
Meanwhile we have 200 lb* of th e above described Metro ta lc on hand here which I plan to make a v a ila b le to whomever would lik e to run
soee t e s t s w ith i t . .Although I an personally Im pressed w ith th e la b o ra to ry acale work R u ssell and X have done, a la r g e r confirm ation or. a p i l o t p la n t b atch co-.'ld prove u s e f u l. ?o r example th is should be made up w ith w hatever perfu se le v e ls a re used In the p la n t today and might evaluate th e holdlng power fo r th e perfuse in the powder * pilff u n it also .
Mr. R u sse ll prep ared and arranged th e
attached data.
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W.Ashton
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J&J-0076516
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TABLE I . P h y sic al fc Chemical Data
t stuxre ft
' Metro #1 0.09
Vernont S4-23 0.07
I t a l . 42771X 0.01
. i n Acid ft
5.08
1.60
3.00
ra tio n ft
4.08
0.80
1.50
c Dens, lb /ft^
24.7
25.4
23.4
>r
White
O fi White
White w ith
Grey-Green cast
crAamy o a s t
ness ft -60
than -100 # -200
y Metals ppa
100ft 99.98ft 96.85ft
le s s than 10
100ft 99.90ft 99.0ft
1
l e s s than 10
100ft 100ft 99.7ft
le s s than 10
l i e ppm
0.3
l e s s th an 3 ppm .
0.7
- Soluhle Iron
passes
passes
passes
c tio n (2 oz) ax. 130 cc nco TAPPED) in . 72 cc
125 co 73 cc
137- cc 72 cc
Protected Doeumnt-*ub)rctto PrcteetWe Order
P C O. M
J&J-0Q76620 JNJAZSS_00001242
Jft. .*r Total Talc
' P la ty
Nonpla ty
'a r b o n a t e s
`rem olite
srpentine
i
bSqucs
i{
i
.TAELS I I M icroscopie Min g a lo g lc a l Assay
Metro A'l 93%
.BOS
Vermont S4-23
Talc Batch
994*
995
94%
96%
86%
3%
H
8%
5
1
1-2
1 trace trace
trace
trace
4
< 1
trace
trace
Italian __T a lc 93 - 9s% 88 - 90% 5 - 9%, 1-3 1-2 none trace
P ro c e e d A u-ust 21,1957 e t Wes
's. Windsor
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J&J-0076521
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