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Hefei Fuhui New Material Co., Ltd(HFFH)

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Sulfur trioxide

Products Name sulfur trioxide
CAS NO. 7446-11-9
EINECS No. 231-197-3
Molecular formula SO3
Molecular weight 80.06
Physical and chemical properties Properties Colorless transparent oily liquid with strong irritating odor.
Melting point 16.83℃
Boiling point 44.8℃
Relative density 1.97 (20℃)
Use Used in organic synthesis, chlorosulfonic acid and sulfuric acid

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