Sample ex- Das 
amined 
_ AS-6 (25 pounds 
_ in paper-lined; 1920. 
veneer drum)... ae 20 
BW (100 pounds 
_ in paper-lined| 1920. 
sugar barrel)... a 12 
y 1922. 
' Mar. 1 
BT (100 pounds 
in hardwood) 1919. 
1) Dec. 
_ BS (50 pounds in 
paper - lined 1920. 
sugar barrel)...; Apr. 20 
sampled. 
Sample ex- 
amined. 
CHEMICAL CHANGES IN CALCIUM ARSENATE. 
9 
Y TABLE 2.—Effect of storage on chemical composition of caletum arsenate—Continued. 
| 
Water- 
Period | soluble 
of | arsenic 
stor- | oxid 
age. |(As2Os) 
Mos. | Per ct. 
a ssadurs 0. 05 
LW . 03 
2S . 04 
3.8 . 05 
4.9 . 02 
5.8 . 02 
6.9 a 
7.8 . 06 
8.8 -08 
cB ee f - 05 
14.3 Pa 
TiS 333 
20. 4 Be 3: 
os ee | . 69 
2. 4 . 46 
9.1 . 82 
15.3 my A! 
19,4 tt 
22.6 1,09 
eer - 20 
ey ae4! 
232 . 22 
3.2 4 | 
4.2 . 30 
5. -16 
6.3 .19 
7.4 18 
8.4 Bid 
9.5 ai by 
10.5 Sy G2 
11.5 a 
ieee AP 7 | 
13.5 7 | 
16.0 - 20 
19.0 .28 
22. 0 So 
25. 0 ror 
a Soo 
Sys es 
28 . 28 
3. 8 . 26 
4.9 40 
5. 8 2B. 
6.9 sao 
7.8 .47 
8.8 48 
11, 4 Sey 
14.3 . 62 
17.3 aya! 
20. 4 . 76 
ee Ee 
eeNewpyys 
SRSSBGRSS 
Gt Eye Go 
BSS8 
o 
or 
10°0) 
OOD AAT 
YP He 29 G9 ye G0 G9 G9 GO G0 G9 
[SS ) 
PP OVO OY Ye 
SRERSKES 
PAD on 
ADOowo 
SSeS 
s 
BS-1 (25 
in meta 
BS-2 (25 
Pathe 
ounds 
in unlined 
sugar barrel)... 
BS-3 (25 
pounds 
in paper-lined 
sugar barrel)... 
BS-4 (25 
pounds 
in hardwood 
Water- 
Period | soluble 
of jarsenic 
stor- | oxi 
age. |(As20;) 
| Mos. | Per ct. 
flats tetee 0. 35 
5 avi ~ 24 
2.8 . 20 
3.8 Bis 
4.9 . 24 
5.8 - 20 
6.9 S97. 
75 . 20 
8.8 521 
11.4 225 
14.3 218 
17.3 .19 
20. 4 ev, 
a Pian | . 30 
7 acy: 
2.8 soo 
3.8 AGS: 
4.9 67 
5. 8 . 69 
6.9 .79 
7.8 .74 
8.8 i | 
11.4 - 82 
14.3 . 76 
WAR) 78 
20. 4 - 87 
pe aoe 8B 7. 
1 ae - 46 
2.8 . 60 
3.8 . 62 
4.9 By 5° 
5. 8 Se pe 
6.9 Le 
7.8 74 
8.8 bt if | 
11.4 .76 
14.3 .76 
a a - 76 
20. 4 85 
See . 29 
17 BD7; 
2.8 2D 
3.8 e25 
4.9 325 
5.8 toe 
6.9 . 30 
7.8 .29 
8.8 aoe 
11.4 . 30 
14.3 .30 
ay OG: .59 
20. 4 . 68 
Pee eee oS 
efteseeaes 
aaa 
SReS 
la 
BA 
NP MAA QE 
NPAAA MBO 
ek: heorker) Oe 
yan aie aes 
eine 
SRG 
3 
sat A sll sell scale sell sd 
OD bm 2 SI 910100 
SSEBOSoS 
Porarer 
BAER 
> 
or 
— 
