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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

PropertyTypical Value, Units
General
Molecular Weight172.2
Empirical FormulaC8H12O4
AppearanceWhite to Off-White Powder
Assay99+ wt % min.
cis Isomer65 wt % min.
Iron<15 ppm
Water1.0 wt % max.
Solubility 
     in Water, @ 20°C1 wt %
Specific Gravity 
     @ 20°C/20°C1.38
Bulk Density0.56 g/mL (35 lb/ft3)
Melting Pointa164-167 °C (327-333 °F)
Flash Point 
     Cleveland Open Cup235 °C (455 °F)
Chemical Inventory ListingsbTSCA (USA), EINECS (Europe)

aMelts 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.
bMITI (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