Technical Data Sheet
Eastman™ 1,4-CHDA-HP
Chemical Synonym
Cyclohexanedicarboxylic Acid
Applications
Automotive
Building materials
Coil coatings
Construction chemicals
Electronic connectors
Food flavors & food fragrances
Intermediates
Kitchen & bath
Metal coatings
Paints & coatings
Pharmaceutical chemicals
Process additives
Protective coatings
Truck/bus/RV
Wind energy
Key Attributes
An excellent combination of hardness and flexibility in one monomer
Better gloss retention and yellowing resistance
Better hydrolytic stability
Excellent thermal stability for low resin color
High solubility in molten glycols
Improved corrosion, stain, chemical, and detergent resistance
Reduced “orange peel” in powder coatings
Product Description
Eastman™ 1,4-CHDA-HP (1,4-cyclohexanedicarboxylic acid high purity) is a cycloaliphatic diacid offering many unique performance properties to polyester resins for coatings and fiberglass-reinforced plastics. It is also ideally suited improving performance of waterborne, high solids, powder coatings and coil coating applications. Its symmetrical, 1,4-substituted cycloaliphatic ring brings properties ideally suited for high-performance applications in automotive, transportation, industrial maintenance, aerospace, architectural, appliance, and general metal coatings, and gel coats. CHDA is a mixture of cis and trans isomers. It is supplied as white to off-white powder in various package sizes. Eastman also manufactures DMCD, which is the dimethyl ester of CHDA.
Typical Properties
Property
Typical Value, Units
General
Molecular Weight
172.2
Empirical Formula
C
8
H
12
O
4
Appearance
White to Off-White Powder
Assay
99+ wt % min.
cis Isomer
65 wt % min.
Iron
<15 ppm
Water
1.0 wt % max.
Solubility
in Water, @ 20°C
1 wt %
Specific Gravity
@ 20°C/20°C
1.38
Bulk Density
0.56 g/mL (35 lb/ft
3
)
Melting Point
a
164-167 °C (327-333 °F)
Flash Point
Cleveland Open Cup
235 °C (455 °F)
Chemical Inventory Listings
b
TSCA (USA), EINECS (Europe)
a
Melts quickly to give a hazy liquid due to 30-40% of the high-melting trans isomer. At this melting range, isomerization of the cis to trans begins to take place. Since the trans isomer melts above 300°C, a well defined melting point is not observable.
b
MITI (Japan), AICS (Australia)
Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.
Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.
2/28/2018 11:35:39 AM