Premium Grade	A.R.	C.P.
Purity(CH3CH2OH)/%	99.8	99.7	99.5
Density(20C)(g/mL)	0.789-0.791	0.789-0.791	0.789-0.791
Clarity %	Pass	Pass	Pass
Residue on evaporation %	0.0005	0.001	0.001
Acid value (mmol/100g)	0.02	0.04	0.1
Alkalinity (OH-)/(mmol/100g)	0.005	0.01	0.03
Water %	0.2	0.3	0.5
Methanol,%	0.02	0.05	0.2
isopropanol((CH3)2CH2OH /%	0.003	0.01	0.05
oxo-compound (CO) /%	0.003	0.003	0.005
Carbonizable substances	pass	pass	pass
Fe %	0.00001	--	--
Zn /%	0.00001	--	--
KMnO4-reducing matter %	0.00025	0.00025	0.0006