Infrared Quantitative Analysis Data. CS-101 Analysis of Iso-octyl

Infrared Quantitative Analysis Data. CS-101 Analysis of Iso-octyl Esters of 2,4-Dichlorophenoxyacetic Acid and 2,4,5-Trichlorophenoxyacetic Acid Mixtu...
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Analysis of Iso-octyl Esters of 2,4-Dichlorophenoxyacetic Acid and 2,4,5-Trichlorophenoxyacetic Acid Mixtures P. J.WITMER, D. N. THOMAS, and J. 8. VERNEITI

Acw-

1 2,4-Di-

2

0-100 *l.O

Cibl&:Clr

rhlorophenoxyacetic add I~o-octyl ester

-

Xorv

1‘7 7: k::

I

No.1

1 1 Slit (mm)

12.56 0.500 25.0 0.047~0.545

No.1

1

-

--.

---

0-100 fl.O

13.72 0.500

3

Component Name Formula 2,4-Dimethyl benzoyl chloride

0-100 f0.5 12.69~ 0.245 1 0.046~ 0.027

C&OCl

I

~CBHSOCI 0-100 f0.5 13.36~ 0.295 0.054 -

Calculation:

Inverse m

a

M

Successive a p p r o x A

i

1 2 3

Matrix:

12.56 0.268 0.020

ComponentIX

1 2

12.21~ 0.897 0.279 0.010

Compomt/X

Inverse m a t r i L

13.72 0.061 0.173

S. H. HASTINGS ond D. E. NICHOLSON Humble Oil & Rdnlng b., Boytown, Tax.

constituent.

II No./

Component Name I F

D. E. NICHOLSON, Humble O i l 8 Refining Co.. Baytown, lex.

Concn. ml length

&o

mm

1 0.027

2

-

benzene

- ____

_ I _

%

benzene

Av

29.51~ 1.089

f0.5

22.57u

1 0.100

___

__~_

0.505

1 0.100

0-100

i

0-100

i f0.5

____ 25.75~ 0.521 I

0-100

1

18.22~

--

CloHlr

A h or

fl.O

I-

1

Concn. glliter length mm

(mm)

f0.5

~

___

Instrument: Perkin-Elmer Model 1 12, CsBr prism Sample Phase: Solution in carbon tetrachloride

Instrument: Perkin-Elmer Model 21, NaCl prism Sample Phase: Sclution in carbon disulfide

Inverse matrix Graphical

~

CoHlr

1-Methyl3-ethylbenzene

0.051~ 0.027 I

Base line.---

A or Y B.1. Pis.

benzene

4 tert-Butyl-

1

%

I

Slit Accumcy

0-100

Cs-102 -

Slit

1 Range

a

Determination of Isomeric Dimethyl Methyl Benzoates

C ~ l Windows: l NaCi Absorbance Measurement:

13.36~ 0.013 0.028 0.791

Determination of C&O Alkylbenzenec

Reference compounds 99 +yo pure

1 I

12.69~ 0.034 1.044 0.020

90% minimum

Material Purify:

Relative absorbances are given as the slope of the Beer’s law concentration curves used expressed in terms of absorbance per 100% of

Cell Windows: CsBr Absorbonce Meosuremenl:

P o i n f X Successive o p p r o x a -

Calculotion:

Component/X

12.79~

1

0.254

12.99p 0.025

2

0.021

0.500

Minimum of 99%

Base line-

Inverse matrix-Graphical-

PointSuccessive a p p r o x A

Relative AbrorboncerAnalyticaI Matrix. Componentlh

Relotiva Absorbances-Analytical Matrix:

Material Purity:

Point L

Bars line-

G r a p h i c a l

Point-

Relativa Ab:orbance:”-AnalyficaI

Calculation:

-111 0.027

M t i w Absorbancar-hlyfical Matrix:

NaCl Cell Window:: Abrorbance Measurement:

benzoate

12.21p 0.218 1 0.042~10.027

-

_____

Cell Window:: NaCl Absorbance Measuremcmt:

Indrumenf: Perkln-Elmer Model 1 12, NaCl prism Sample Phase: Solution in carbon disultlde

i

0-100 f0.5

C&I.OCI

2,5-Dimethyl benzoyl chloride

Pts.

Inrtrvment: Perkin-Elmer Model 21, NoCl prism Sampb Phase: SduWOn h carbon disulfide

ester

Material Purity:

mcy

I~% %

3.5-Dimethyl benzoyl chloride

24.0

Range

0.047~0.545

iaoayl

Colwbtion:

X or v B. L.

AcwConcn. mg/ml Length mm

2

2,4,5-1riCI(~ZIO:CII chlorophenoxyacetic acid

CS.103

D. E. NICHOLSON. Humblo Oil 6 Rdnlng b.,Baytown, lex.

Cs.101

Chipman Chemlcol b.,Inc., Portland, Or..

Component Noma Formula

Determination of Isomeric Methyl Benzoyl Chlorides

1 2

3 4 Material Purity:

29.51~ 0.256 0.070 0.029 0.030

22.57~

0.196 2.500 0.064 0.036

25.75~ 0.047 0.045 0.347 0.041

18.22r 0.162 0.05i 3.167 4.740

99.5% minimum

~~~

Thwe data represent standard publication and aubmisaion is open to anyone in accordance with regulations of ANALYTICAL CHEMISTRY.The Coblentz Society is acting only aa an aid to the journal.

1924

r

ANALYTICAL CHEMISTRY

To atandardise procedure ANALYTICAL CHEVISTRY requests that maceri* be sent in uintuplicate to’the chairman of the review committee: D. k’ Nicholson, qiesearch and Development Divinion, Humble Oil Refining 5. P.O.Box 3950, Baytown, Ter.