Product No.:km-723
Product Name:hydroquinone bis (2-hydroxyethyl) ether (HQEE)
Cas No.:104-38-1
Molecular Formula: C10H14O4
Molecular Weight: 198.22
Appearance: Off-white powder
Melting point: 102-105'C
Moisture: 0.3%max
Hydroxyl Value: 535±15mg KOH/g
Boiling Point at 0.3mm Hg, :190
Solubility at 25ºC ,wt.%
Water: <1
Acetone: 4
Ethanol: 4
Ethyl Acetate: 1
Ethane: <1
Dimethylacetamide (DMAC): 1
Specific Heat Cal/g/ºC: 0.4
Melt Density at 110ºC g/ml: 1.15
Melt Viscosity at 110ºC , cp1:15
Bulk Density (loose) g/ml: 0.51
Bulk Density (packed) g/ml: 0.62
Pounds/53 gallons: 250
Hygroscopicity, %
Dried at 50ºC ,34mmHg, 16hrs: 0.08
At 24ºC , 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, conveyor belt, hydraulic cylinder seals, many other PU products and spandex. LCU elastomers require two principle components: a prepolymer terminated with reactive isocyanate groups and a difunctional active hydrogen-terminated chain extender. Prepolymer is a product based on the reaction of polyester or polyether with isocyanate (TDIMDIADI). The chain extender is usually a short chain of diamine or diol. MDI prepolymers are usually extended with diols.
Storage: HQEE is very sensitive to moisture, it should be stored in a dry location.
Packaging: Net 20kg fibre drum with PE liner.
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1. Who are we?
We are based in Wuhan, Hubei province, China, start from 2011, works on research and development, production and technical services of Silicone chemicals, pharmaceutical intermediates, electronic chemicals, organic fluorine surfactant, electroplating chemicals etc.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Organic silicone oils, pharmaceutical intermediates, electronic chemicals, organic fluorine surfactant, electroplating chemicals ,etc.
4. Why should you buy from us not from other suppliers?
1). Powerful R & D team
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3). Various kinds of advanced equipment in the laboratory and plant;
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