Appearance : Clear colorless liquid, with characteristic odor
Purity (by GC) ................................ Min 99%
Colour scale ................................... Max 10 APHA
Weight/ mL at 20°C ........................ 0.713 - 0.715 g
Refractive index (20°C; 589 nm) .... 1.351 - 1.353
Insoluble matter in water ................ Nil
Water (H2O) ................................... Max 0.2%
Acidity (as CH3COOH) ................... Max 0.0002 meq/gm
Non-volatile matter ........................ Max 0.001%
Aldehydes and ketones
(as CH3CHO) ................................ Max 0.002%
Ethanol (C2H5OH) ........................ Max 0.05%
Peroxide (as H2O2) ...................... Max 0.0001%
Odorous Impurities ........................ Passes test
Substance darkened by H2SO4 .... Passes test