Water : <0.03% Acidity as acetic acids : <0.005% Acetaldehyde : <0.010 Hydroquinone : 3-5%
Melting Point : -93 C Boiling Point : 72-73 C (lit.) Density : 0.934 g/mL at 25 C (lit.) Refractive index : n20/ D 1.395(lit.) Water Solubility : 23 g/L (20 C)