Her CAS No.: 102-40-9

• CAS No.: 102-40-9
• Formula: C10h14o4
• EINECS: 203-028-3
• Model NO.: HER
• Certification: REACH, ISO
• Environmental Protection: Yes
• Function: Poisonless Chain Extender
• Appearance: Powder
• Color: White
• Moisture: <0.1%
• Molecular Weight: 198.22
• Hydroxyl: 550+/-15mg KOH/G
• Melting Point ºC: Min 86
• Transport Package: 25kg/Cardboard Drum (with PE Bag Inside)
• Specification: MIN 98%
• Trademark: SINOCHEM
• Origin: China
• HS Code: 29094990
• Production Capacity: 2000tons

Product Description

                                                HER

Commercial Name: Resorcinol bis-(2-Hydroxyethyl) ether
                                   1,3-Bis (2-Hydroxyethoxyl) benzene
Molecular Formula:  C₁₀H₁₄O₄
Molecular Weight:  198.22
CAS No. :           102-40-9
 
Physical Properties of HER:

Appearance	White to grey crystal powder
Molecular weight	198.22
Hydroxyl Value	550±15mg KOH/g
Melting point ºC	≥86ºC
Specific Gravity, 100ºC	1.16
Moisture %	<0.2
Solubility at 25ºC, wt.%      Acetone      Ethanol     Ethyl Acetate     Ethane	11 13 3 <1
Specific Heat  Cal/g  /ºC	0.4
Melt Density at 100ºC g/ml	1.16
Melt Viscosity at 100ºC, cp	13.5
Bulk Density (loose)  g/ml	0.51
Bulk Density (packed)  g/ml	0.62
Hygroscopicity, %     Dried at 50ºC,34mm Hg, 16hrs     At 24ºC, 66.5 Relative Humidity, 168hrs	0.08 0.39

HER is a symmetrical aromatic diol chain extender, Because it has good compatibility with MDI, HER is widely used in CPU, MPU and TPU products. This material has been approved that it can maintain maximum endurance, elasticity and plasticity of PU elastomer. It also offers minimum shrinkage.  
Besides of those common advantages of aromatic family chain extenders, HER avoids the deficiencies in HQEE (HQEE returns solids quickly when temperature drops a little).  And HER offers better tear strength, initial strength, compression set.  It has advantages of low shrinkage, cut resistance, low melting point and easy handling etc.
Typical uses of HER include seal, mud pipeline lining, skating wheel, shoe part, beverage container, soft or rigid packaging materials etc.
 
 
STORAGE
HER is very sensitive to moisture; it should at all times be stored in a dry place.
 
 
PACKAGING
Net 25-kg per drum with aluminium foil bag.