4. Product sheet

• Physico-chemical properties

Acetic anhydride is a colorless, pungent-smelling, irritating and tear-producing liquid.

Molecular mass: 102.09 g/mol.

Commercial concentration > 99% by mass.

Melting temperature: - 73 ˚C.

Normal boiling temperature: 139.6 ˚C.

Density at 20 ˚C: 1.080 to 1.085 g/cm ³ .

Vapour pressure at 20 ˚C: 0.473 kPa.

Vapour pressure at 100 ˚C: 28.6 kPa.

Dynamic viscosity at 20 ˚C: 0.912 mPa · s.

Refractive index $n_{\text{D}}^{20}=\mathrm{1,389}2$...