Determination of Water, Ethyl Alcohol, and Benzene in Ethyl Bromide 0. A. McCRORY and R. 1. SCHEDDEL, The D o w Chemical Co., Midland, Mich.
Determination of Water in Phenylhydrazine 1. R. KILEY and R. T. SCHEDDEL, The D o w Chemical Co., Midland, Mich.
CS-48
CS-46 __.
Slit Comnonent Name formula
No.
ACCUracy
I I
%
Range
Concn.
X orv
(mm)
6.1. Pis.
AA or Av
%
length mm
-- -
zk 10 ppm 2.659 0.090
100 3.0 0.0479
2.562.9 2
!
3
Ethyl alcohol
C2H6O
0-1000 PPm
Benzene
C6Hs
s-
Water
1
H20
R~~~~
;;::
'7
%
10-1.5
1 0 . 0 3 : 2.679
~
~
Concn.
%
(mm)
length mm
AA or Av 0.090
0.0479
2.6-Horiz.
100 0.1
Instrumenf: Perkin-Elmer Madel 12, NaCl prism Sample Phase: Full strength Cell windows: BaFz Absorbance Measurement:
~
100
15.3
i
!
1
100 &20 ppm 2 . ~ IO.090 5 ~ 3.0 2 . 5 & 0.0489 2.9
0-1.0% zk0.05%
I 1 1 I X orv
Accu-
Component No./ Name Formula
Slit
Calculation:
0.1
Base I i n e X
Inverse m a t r i x GraphicalX
Point-
Successive approx.-
I
Relative Absorbances'-Analytical Matrix: Perkin-Elmer Model 12, NaCl prism Baird Associates Model A, NaCl prism (benzene only) Sample Phase: Full strength
Instrumenf:
Cell windows: NaCl Absorbance Measurement: Calculofion:
1 Material Purity:
Base I i n e X
Inverse m a t r i x GraphicalX
2.67 25.50
ComponentlA
Point-
Reference compounds'99
+%
pure.
Relative absorbances are given as the slope of the Beer's law concentration curves used expressed in terms o f absorbance per 1.0% of constituent. a
Successive approx.-
Relafive AbsorbancesD-Analytical Matrix:
2.65 5.240
Component/A 1 2
3 Material Purify:
2.75
14.7
0.000
2.160 2.670
0 * 000 0.000
0.000
0.000
0.830
Reference compounds 9 9 +% pure
Analysis of 4-Bromodiphenyl and 4,4'-Dibromodiphenyl Mixtures cs-49
1. R. KILEY, The Dow Chemical Co., Midland, Mich.
Relative absorbances are given as the slope o f the Beer's law concentration curve used expressed in terms o f absorbance per 1.0% of constituent. a
Slit NO.;
Analysis of 4Phenylphenol and 4,4'-Biphenol Mixtures cs-47
1. R. KILEY, The Dow Chemical Co., Midland, Mich.
Concn.
r'
Component Name Formula
Range
%
lL. -
112.379 0.500 O.O90P,
~C,zH& 0-100
12. 109
Component Name Formula
0-100 2
~
4,4'-Biphenol
!
C12HIo02
1
i
zkl.0
&l.O
0-100 ~
I
I
13.09
0.650 Io.115P
1 2 . 0 3 ~0.500 l0.O9ZP
7 0.6
7 0.6
Instrumenf: Perkin-Elmer Model 12, NaCl prism Sample Phase: Solution in carbon disulflde Cell Windows: NoCl Absorbance Measuremenf: Calculation:
Base line-
Inverse motrixGraphicalA
1 2 Material Purity:
I
I
13.0 0.587 0.047
- _ _ ~ _ _ _ -
1
0-100 1 1 . 0 14.389 1,100 100 10.194~I 0 . 1
~
~
Instrumenf: Perkin-Elmer Model 12, NaCI prism Sample Phase: Solution in carbon disulfide
Calculation:
Successive approx.-
Base line-
inverted matrixGraphicalX
P o i n t X Successive approx.-
Relative Absorbancesa-Analyfical Matrix:
Re!afive Absorbances'-Analytical Matrix: ComponentlA
i
IO-100 1 z k l . O 113.129 1 0 . 6 5 0 1 100 0 . 1 1 5 ~ 1 0.1
Cell Windows: NaCl Absorbance Measurement:
P o i n t X
100 0.1
.-
length
Range
1
mm
100 0.1
~
No.
Concn. mglml lengfh
.___
C12HaBr2 0-100
4,4'-Dibromo. diphenyl
-I
fmm) AA or Av
12.03 0.118 0.805
Reference compounds 9 9 +% pure
Componentlh
12.37
12.10
13.12
14.38
1
0.969
0.006
2
0.027
0.035 0.527
0.007 0.375
Material Purify:
0.804
Reference compounds 9 9 +% pure
a Relative absorbances are given as the slope o f the Beer's law can-
Relative absorbances are given as the slope of the Beer's law concentration curves used expressed in terms o f absorbance per 100% o f constituent,
centration curves used expressed in terms of absorbance per 100% o f constituent.
These data represent standard publication and submission is open to anyCHEYIBTRY.The Coone in accordance with regulations of ANALYTICAL blentz Society is acting only as an aid t o the Journal.
To standardize procedures, ANALYTICAL CHEMISTRY requests that material be sent in quintuplicate to the chairman of the review committee: Robert c. Wilkerson, Celanese Corp. of America, Post O 5 c e Box 8, Clarkwood, Tex.
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ANALYTICAL CHEMISTRY
