Tert-Butyl hydroquinone(TBHQ)
CAS No.: [1948-33-0]
Molecular formula: C10H14O2
Molecular weight: 166.22
Specification:
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Appearance: white to off-white crystalline powder
Content: 99% min.
t-Butyl-p-benzoquinone: 0.2% max.
2,5-di-Butylhydroquinone: 0.2% max.
Hydroquinone: 0.1% max.
Lead: 2 ppm max.
Toluene: 25 ppm max.
Ultraviolet absorbance: pass
Melting range: 126.6-128.4°C
Conform to FCC V
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Packing: net 25kg drum
Usage: Useful antioxidant for unstable organic liquids such as chlorinated hydrocarbons, certain oils, ethers, and aldehydes. Also an effective heat and light stabilizer for the pressure-sensitive adhesives based on polyvinylethers. Also used as polymerization retarder for unsaturated polyesters and some other polymerizable systems.
Molecular structure:
