... : Index nameIndexChroma (APHA) <=60Acid value mgKOH/g <=0.10Freezing point°C >=47.0Free phenol % <=0.10Relative Density (50°C) ... 1.185~1.202Assay% >=993, Uses. Used as fire-retarding plasticizer of cellulose resin, vinyl resin, natural or synthetic ... properties, transparency, softness and toughness. Used as plasticizer and fire-retarding additive of nitro cellulose, coating, glyceryl triacetate film, ...