the ODD carbon makes Azelaic Acid different - C&EN Global

Nov 5, 2010 - Advertisements that appeared within the print issues of Chem. Eng. News have been included in the C&EN Archives to provide a ...
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the ODD carbon makes Azelaic Acid different for e x a m p l e : lower melting points t h a t carry through to d e r i v a t i v e s

ADIP1C

151C

SEBACIC

129C

AZELAIC 97°C

HOOC-(CH2)7-COOH.

ADIPIC

difference

SEBACIC

O

9

10

Molecular Weight

146

188

202

Melting Point, °C

151

97

Boiling Point, °C at 100 mm.

265

Water Sol. at 20°C, G / 1 0 0 gm H20

1.44

0.24

220

175

21 a '

235

185

198 -8

Carbon Atoms

check the

AZELAIC

r

M. P. of Amides, °C M. P. of Anilides, °C

294

Freezing Point of 2, ethylhexyl esters, °F*

-15

-49

Freezing Point of 3, methylbutyl esters, °F*

-90

-110

Freezing Point of 2, ethylbutyl esters, °F*

-44

-53

*Bried,

E. M., ef a l . , Ind. Eng. Chem. 3 9 : 484

129^

0.10

-67

+1

[1947)

This unique melting point behavior of EMEROX® Azelaic Acid is but one example of how its odd carbon chain length makes azelaic acid different from other commercial dibasic acids. And since these differences are reflected by end-products, azelaic acid may give your product a competitive advantage ...or it may fit into your development program as a new dibasic acid from which to build unique products. Write Dept.C-9today for descriptive literature or a sample of Emerox Azelaic Acid.

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