Product Data Sheet

 Eastman HQMME (Hydroquinone Monomethyl Ether)

Application/Uses
  • Antioxidant
  • Chemical intermediate
  • Inhibitor
  • Polymerization inhibitor
  • Stabilizer
Product Description
Eastman HQMME (Hydroquinone Monomethyl Ether) is a white, flaked solid. HQMME is only slightly soluble in water but has excellent solubility in organic solvents. The aromatic ring can undergo numerous reactions (alkylation, halogenation, and substitutions) without loss of the methyl ether group. Unlike most phenolic inhibitors, small concentrations of HQMME are colorless in the presence of alkaline emulsions.

Typical Properties
 
 
Property   Typical Value, Units
Molecular Weight   124.14
Empirical Formula  
Appearance   White flakes
Solidification Point   55¡ÆC (131¡ÆF)
Assay   99.3%
Specific Gravity   > 1
Melting Point   53¡ÆC (127¡ÆF)
Boiling Point   243¡ÆC (470¡ÆF)
Density @ 65¡ÆC   1.1106 g/mL
Flash Point Cleveland Open Cup   132¡ÆC (270¡ÆF)
Autoignition Temperature   421¡ÆC (790¡ÆF)
Solubility @ 25¨¬ (77¨¬F)
  in Water
  4 wt %
  In 10% NaOH
  > 33 wt %
  In Acetone
  > 78 wt %
  In Ethanol (95%)
  > 60 wt %
  In Ethyl Acetate
  > 67 wt %
  In Styrene
  21 wt %

Comments
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.
Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

24-Jan-2005 1:33:47 PM