Typical Physical Properties
Polymer Intermediates

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Polymer Intermediates
ProductsFormColorSpecific GravityBoiling PointaMelting PointbFlash PointAssayData
CIE b*Pt-Co@ 20°C/20°CCleveland Open Cup
1,4-Cyclohexanedicarboxylic Acid High Purity (CHDA-HP)---1.38 -164-167 °C
(327-333 °F)
235 °C
(455 °F)
99+ wt % min.
1,4-Cyclohexanedimethanol (CHDM-D)White waxy solid -10 max. (molten)1.02 284-288 °C
(543-550 °F)
41-61 °C
(106-142 °F)
167 °C
(333 °F)
98.5 wt % min.
1,4-Cyclohexanedimethanol (CHDM-D90)Slightly hazy liquid -10 max. (molten)0.95 113 °C
(235 °F)
-30 to 40 °C-88.0-90.5 wt % min.
Dimethyl Terephthalate (DMT)----288 °C
(550 °F)
141 °C
(286 °F)
153 °C
(307 °F)
Dimethyl 1,4-Cyclohexanedicarboxylate (DMCD)-------93 wt % min.
Isophthalic Acid-1.4 max.-1.507 -345-348 °C
(653-658 °F)
->99.8 wt % min.
Purified Terephthalic Acid (PTA)-5.3 max.--->300 °C
(>572 °F)
271 °C
(519.8 °F)
a - Sublimes
b - 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.
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