hydroquinone bis (2-hydroxyethyl) ether CAS NO.104-38-1

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Product Name: hydroquinone bis (2-hydroxyethyl) ether (HQEE)

Synonym :p-Phenylenedioxydiethanol; 2,2'-(1,4-Phenylenedioxy)diethanol;

p-Bis(2-hydroxyethoxy)benzene; Hydroquinone bis(2-hydroxyethyl)ether

CAS No. 104-38-1

Molecular Formula: C₁₀H₁₄O₄

Molecular Weight: 198.22

Appearance : Off-white powder

Melting range: 102-105

Moisture %: 0.3

Hydroxyl Value: 535±15mg KOH/g

Boiling Point at 0.3mm Hg, :190

Solubility at 25℃ ,wt.%

Water: <1

Acetone: 4

Ethanol: 4

Ethyl Acetate: 1

Ethane: <1

Dimethylacetamide (DMAC)      : 1

Specific Heat Cal/g/℃: 0.4

Melt Density at 110℃ g/ml: 1.15

Melt Viscosity at 110℃ , cp1:15

Bulk Density (loose) g/ml: 0.51

Bulk Density (packed) g/ml : 0.62

Pounds/53 gallons: 250

Hygroscopicity, %

Dried at 50℃ ,34mmHg, 16hrs: 0.08

At 24℃ , 66.5 Relative Humidity, 168hrs: 0.39

Applications: HQEE is a symmetrical aromatic diol chain extender. It can improve tensile, hardness, resilience properties to MDI-polyurethane elastomers.  HQEE/ MDI is a PU elastomer series parallels MOCA/TDI. Finished products as: oil well seals, forklift tires, conveybelt, hydraulic cylinder seals, many other PU products spandex. LCU elastomers require two principle components: a prepolymer terminated with reactive isocyanate groups a difunctional active hydrogen-terminated chain extender. Prepolymer is a product based on the reaction of polyester polyether with isocyanate (TDIMDIADI). The chain extender is usually a short chain of diamine diol. MDI prepolymers are usually extended with diols.