Technical Data Sheet
Applications
Auto plastics
Intermediates
Kitchen & bath
Molding & trim interior
Paints & coatings
Photographic chemicals
Protective coatings
Resins
Product Description
Eastman™ Toluhydroquinone (THQ) is a tan to white crystalline solid. THQ undergoes chemical reactions similar to those of hydroquinone. The presence of a methyl group in the ortho position in the toluhydroquinone molecule accounts for the slight structural and behavioral differences between toluhydroquinone and hydroquinone. Eastman™ Toluhydroquinone is a highly active inhibitor in the free radical polymerization of vinyl monomers and unsaturated polyesters.
Typical Properties
Property
Typical Value, Units
General
Molecular Weight
124.13
Empirical Formula
C
7
H
8
O
2
Appearance
Off-white solid
Assay
99 % min
Specific Gravity
1.3
Melting Point
127 °C (261 °F)
Boiling Point
279 °C (534 °F)
Flash Point
Cleveland Open Cup
172 °C (342 °F)
Autoignition Temperature
452 °C (846 °F)
Solubility @ 25º (77ºF)
In Acetone
55 wt %
In Ethanol (95%)
44 wt %
In Ethyl Acetate
50 wt %
In Methyl Methacrylate
14 wt %
In Styrene
< 5 wt %
in Water
7 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.
8/2/2021 2:41:52 PM