Document EdKo5n3Nd9aXj6kYoXKXv1p1V
Hmmmbar ZX if%l
Th Health Ifnaard ff tim Ilm of tho Avm glold Water Sana
Qfa.1et
To dotoroi&o whether M r m f & X ^uantitXe of load and
sine will h dissolved by water stored in th galvanisod
ans*
.
Coaelusloag
(1) The can wifch galvaalcod Utting 1s dangerouo to
use#
CS) tilgnlflosat enounto of both load and mi are
present l n tho. eeatai&od water vlbJaia *5 nlnutoo, and
potentlally hstardeu quaatitd &t Xeed g it solution
ln fron a few mirmtaa to t Umm* t i m
'
(5) largo quantitlas f mi ore found in t& water
fter ome days standtng*
Cb-) ftere is l& m if fm rm m th&n wcrnld be antieipated
in the capaaltla!j of Tariotis. waters to dissolve tfee an
iinings*
.
'
Preoedar
.
Thron Standard oaaa, patnted anteide, wer received
fron th reffaraonvlllo U&rteraater Sepot and wer
ImaodintoXy washod witfcS-l/t'Xitoro'f dietilled water, sbakoii fsr 1 islimte of esoh X, tbrough a perlod of X hour*
2aeh an wm thoa onehalf fllled with 1 of the 3
klnds of waterf via*
, . '
5~
electrolysis*
The m t w t f tap end e*i.fleo# corroded badly * M the
gaskets deteriorated end fragsented aft** a few-hours* use#
The remit of the .pH determinations and natal analyse*
are gira on the attached mkmtm* Ms mission
'
The chnnges in #1 m m is the oein toward a greater
alkalinity, resulting In nil probability from the increasing amounts of ino arid dissolved Variable results were
encountered in the ease- of #! {distilled -water) which
it vmta not possible to umX tight!y because of a break in
the toy*
-
The amounts of -lead im the wstsr* Increased steadily
on standing and reached potentially hasardou* level# In a
short time in, .til eons The amounts present after S hours
were not of m &% negalbigde' an to he mediately'dangerous
hen consumed under condition* of low wafer intake for
short periods of time, hut If these concentrations were
Ingested regularly during honey operations in hot, dry
weethor whom the water Intake is high, lead intoxication
could result* (Tbs.teapeyaturo effect w m not studied and
cans were stored at room temperature (74* ?}* It is'
anticipated that all solubilities will bo increased at
higher tompreturos*)
Largs quantities of sins m m disasHmd by ell witters* There was no- pxopovtienate relationship between the amounts of lead and sine dissolved-by tbs various water, nor did tbs mount#, dissolved by any on kind of water increase to 11 instsmees in the sums proportion with tins. .Aoolemting rates of solution for both load ant also were noted as tbs result of contact with distilled water ant for sine in contact with. Herwood and Cincinnati waters. The rates of solution of load war practically constant for the entire period of contact with the Korwood end. einoiimati waters*
I
f I' ' WATER STORED IN ARMY WATER CANS
Storage Duration Before Use 5 minutes 10 minutes 50 minutes 2 hours 8 hours 2 k hours
* 1 week 1 month
oH 5.88 6.98 7.30 7.19 7.00
6.77
Lost 8061 7.60
Distilled. Water (a) Mg. Pb M g . Zn
Per Per Liter Liter
Remarks
0.002 O.O5O
0.l6 ._ 390_
Turbid sample
0.11;
0.25
5E0 5 ok0
Turbid sample Turbid sample
0.50
0.5li
k . 2 0 ... 5.10
Turbidity of sample increased Definite water line on can surface
Lost 1.80 2.52
Lost 1+9.5
166 0
Lost Contents milky, faint water line ! Heavy white sediment, double water line, black^spots on bottom, sides coated
(a) Double distilled.
Note: Lead determinations were made by photometric dithizone method
(D. M. Hubbard, Ind. Eng. Chem. Anal. Ed. 1;93 (1937); Earl Bambach, Ind. Eng. Chem. Anal. Ed. 11, l+OO, (1939))*
Zinc determinations were made polarographically (unpublished
method)
.
Samples Reported: ll-li;-i;l
J1 '1 Storage Duration
Before use
.... _JB_H
7A i
5 minutes
10 minutes 30 minutes
*93 7.96
2 hours
. 7*95
8 hours
8 o22
2k hours 1 week
80 00
8.92
39 days - 9*79
WATER STORED IN ARMY WATER CANS
Norwood City Water
Mg. Pb Mg. Zn
per Per
Liter
Liter
Remarks
0.02 0.10
0.09
0.12 .
o.oko
3.k0x 3.70 7.50
0.2k
lk. 2k
0.21 ...I7.5O
0.22
0.29
17.00 72.00
0.50
168.00
Cloudy sample
Cloudy sample Turbidity of sample increased; trace of oxidation Turbidity of sample increased; trace of oxidation Increasing cloudiness; definite water line; some sludge Same as above plus increasing oxidation of dry surface Pasty deposit above water line; metallic taste Sides and bottom coated with pasty material; liquid turbid; metallic taste
Analysis of Norwood Water
Grains/gallon
Turbidity
Free COs Total Alkalinity Incrustants Total Hardness Magnesium Iron Sulfate Chloride Calcium Total Solids
10.0 .
l6.0
3k3.o
ko.o 383.0
22.0
2.2
k1i5..0o
IO3.O
k25*o
0.6
1.0 20.0
2.3
22.3
1*5
0.13
2k
9*9
6.0
5k* 9
Note: Lead determinations were made by photometric dithizone method
(D. Ivl. Hubbard, Ind. Eng. Chem. Anal. Ed.- Q, k93 (1937);
Karl Bambach, Ind. Eng. Chem. Anal. Ed. Id, J4.OO (1939).
Zinc determinations were made polarographically (unpublished
method).
'
Samples Reported: 11--llj,--ipl
WATER STORED IN ARM? WATER CANS
Storage Duration
Before use
pH
f i (sy
t455(c)
Cincinnati City water (a)
Mg. Pb Mg Zn
per per
Liter
Liter
Remarks
0.002
Trace
5 minutes r 80
0.15
Ik. 50 Sample cloudy
10 minutes c
i
30 minutes 457
0.I8 0.28
18.00 26.70
Sample cloudy Increasing cloudiness; acid odor; Cl taste
2 hours 1
8 hours
31
2k hours 1 week
. 3k d s _
16
1
- j1.
50
i . -QX.____
C\l H:
0.3I
0.3k
0.14
0.53
O.69
29.60
..... 3 3 * 0 0 _
k7c00
102.00 28k. 0
Increasing turbidity Definite water line; very turbid; bottom and sides show oxidation Sample appears almost milky; metallic taste Increasing oxidation of bottom and sides Liquid turbid; corrosion; pasty deposit; screw cap heavily corroded
Analysis of Cincinnati Water (Avg. for 19kl)
ppm
---Phenolphthalein Alkalinity Total alkalinity
X-< 28
Non-carbonate Hardness Total Hardness Calcium ---Magnesium
102
130 k52..85
. Sulfates
II7 . 3
Chlorides
33.O
*Iron
Trace
Total Dissolved Solids
278.O
-'i-pH Value
Free C03 never
Is
present,
8*k being removed by
J the lime treatment.
:_ '*
(a) This water was treated with calcium hypochloride (HTH) to give 5 PPm
' free C l ..
(b) pH before treatment with HTH
(c) pH after treatment with HTH --- Minimum and maximum values do not necessarily occur at the time of
minimum and maximum hardness HTH = Mathieson Alkali Works trade name.
*
Note: Lead determinations were made by photometric dithizone method
(I). M. Hubbard, Ind. Eng. Chem. Anal. Ed. % k93 (1937);
Karl Bambach, Ind. Eng. Chem. Anal. Ed. 11, IpOO (19 3 9 ).
Zinc determinations were made polarographically (unpublished
method) .
~
**
Samples Reported: 11-34-Ip.