... modifier, Mainly in polyester resin. Diethylene GlycolStandard No:Q/HG 018 603-2002Chemical Formula.CH2-CH2-O-CH2-CH2 | | OH OHItemUnitSpecificationSuper-gradeNormal ... .0010.002Diethylene Glycol% ≤0.050.10Triethylene glycol% ≤0.050.10Physical-Chemical PropertyColorless odourless,Bp:245,Fp:-7,8,soiuble in water ...