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Technical Data Sheet
Eastman™ MTBHQ

  • Acrylic acid
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  • Intermediates
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Product Description
Eastman™ MTBHQ (mono t-butyl hydroquinone) is a light tan solid. Eastman™ MTBHQ is used primarily as a polymerization inhibitor and industrial antioxidant. Its higher solubility and increased potency at higher temperartures combine to make it more useful in many applications than unsubstituted hydroquinone. The hindered hydroxyl group also makes Eastman™ MTBHQ an interesting organic intermediate.

Typical Properties

PropertyTypical Value, Units
Molecular Weight166.22
Empirical FormulaC10H14O2
AppearanceLight tan solid
Assay98 wt % min.
Specific Gravity 
     @ 20°C/20°C1.05
Melting Point125 °C
Boiling Point295 °C
Flash Point 
     Cleveland Open Cup171 °C (340 °F)
Autoignition Temperature457 °C (855 °F)
Solubility @ 25º (77ºF) 
     In Acetone66 wt %
     In Ethanol (95%)> 60 wt %
     In Ethyl Acetate50 wt %
     In Styrene< 5 wt %
     In TolueneInsoluble
     in WaterModerate

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.

2/28/2018 11:35:39 AM