Glycerol ester of rosin，ester gum

Inquiry

ITEMS	STANDARD
Appearance	Hard, yellow to pale amber-colored resin
Identification	Solubility: Insoluble in water, soluble in acetone
Identification	Infrared absorption spectrum: Characteristic of the compound
Ring and ball softening range (℃)	82- 90
Acid value (mg KOH/g)	3-9
Specific gravity (25℃)	1.080- 1.090
Ash (%)	=< 0.1
Lead (Pb)	=<2 mg/kg
Arsenic (As)	=<3 mg/kg
Mercury (Hg)	=<1 mg/kg
Cadmium (Cd)	=<1 mg/kg
Total heavy metals(as Pb)	=<10 mg/kg
Total plate count	=< 5000 cfu/g
Yeast & mould	=< 500 cfu/g
Salmonella/ 10g	Negative
E. Coli/ 5g	Negative