... 98%, the gamma content is over 85%. 1,2,5,6,9,10-Hexabromocyclododecane (HBCD) Molecular formula:C12H18Br6 Molecular ... content≥%98Gamma content≥%85Bromine content %≥74Melting range(°C)180-195Volatile Matter(105°C 2h)≤%0.5Hue APHA ≤30Free bromine≤PPM500TGA ... content≥%98Gamma content≥%85Bromine content ≥%74Melting range(°C) 175-185Volatile Matter(105°C 2h)≤%0.5Hue APHA ≤30Free bromine≤PPM500TGA ...