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2-Methylhydroquinone THQ (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.