Toluhydroquinone THQ 99.5% CAS 95-71-6 is a tan to white crystalline solid. THQ undergoes chemical reactions similarto 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. Toluhydroquinone is a highly active inhibitor in the free radical polymerization of vinyl monomers and unsaturated polyesters.
Specification
Appearance
White Crystal Powder
Assay, % (dry basis)
≥ 99.0
Melting point, ℃
125-128
Residue on ignition,%
≤ 0.04
Heavy Metals,%
≤ 0.001
Loss on drying,%
≤ 0.5
Absorptions K
≤ 1.8(λ =440nm)
≤ 1.1(λ =520nm)
≤ 0.5(λ =750nm)
Application
Toluhydroquinone is a highly active inhibitor in the free radical polymerization of vinyl monomers and unsaturated polyesters.--Antioxidant
--Catalyst in the oxidation of mercaptans
--Catalysts
--Photographic developers
--Photographic products
--Polymerization inhibitor
Packing
25kg fibre drum
Total 9 MT per 20ft container with pallets,12 MT without pallets.Safety & Storage & Handling
Stored in cool and airy place; away from fire and heat; handle with care;no breakage, avoid leakage.
It is valid for 2 years under proper condition.
* Please refer to MSDS for more information about Safety, Storage and Transportation.
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