Dow ISONATE™ 125MDR Pure MDI

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Dow ISONATE™ 125MDR Pure MDI
Categories:	Fluid
Material Notes:	ISONATE™ 125MDR is a crystalline, pure MDI mixture is characterized by high purity, low acidity and reproducible reactivity. This difunctional product is a key ingredient in preparing prepolymers for polyurethane processing. Judicious use of polyols, extenders and additives permits the manufacture of thermoplastic polymers suitable for extrusion, injection molding or solution applications. 98% 4,4`-diphenylmethane diisocyanate and 2% 2,4`-diphenylmethane diisocyanate Information provided by Dow
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Physical Properties	Original Value	Comments

Density	1.18 g/cc
Viscosity	5.0 cP @Temperature 43.0 °C
Vapor Pressure	<= 0.000100 torr @Temperature 43.0 °C

Chemical Properties	Original Value	Comments
Acid Value	0.0030	% as HCl

Thermal Properties	Original Value	Comments
Heat of Fusion	136 J/g
Heat of Vaporization	360 J/g
CTE, linear	762 µm/m-°C @Temperature 20.0 °C	volumetric
Specific Heat Capacity	1.80 J/g-°C
Thermal Conductivity	0.000300 cal cm/sec-cm²-°C
Boiling Point	314 °C
Decomposition Temperature	230 °C
Flash Point	>= 177 °C	Closed Cup; ASTM D93

Processing Properties	Original Value	Comments
Shelf Life	1.50 Month	(45 days) at 43°C, clear melt without filtration
	12.0 Month	at -20°C, clear melt without filtration

Descriptive Properties
Hydrolyzable Chloride ppm	18
Isocyanate Equivalent Weight	125.5
NCO Content wt%	33.5

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PDOW1389 / 30607

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