Eastman™ Toluhydroquinone

Application/Uses

- Antioxidant
- Catalyst in the oxidation of mercaptans
- Catalysts
- Photographic developers
- Photographic products
- Polymerization inhibitor

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
Molecular Weight	124.13
Empirical Formula	C7H8O2
Appearance	Off-white solid
Assay	99% min
Specific Gravity	1.3
Melting Point	127°C (261°F)
Boiling Point	279°C (534°F)
Flash PointCleveland Open Cup	172°C (342°F)
Autoignition Temperature	452°C (846°F)
Solubility @ 25º (77ºF) in Water In Acetone In Ethanol (95%) In Ethyl Acetate In Styrene In Methyl Methacrylate	7 wt % 55 wt % 44 wt % 50 wt % < 5 wt % 14 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.