1)Element: CH3 (CH2) n COOH (n=16 or 18); 2)Properties: a white little piece crystal with slight luster; 3)Application: Widely used as curing agent, plastic heat stabilizer, wetting agent, textile softener, chemical fiber oil, anti-static agent, edible emulsifier, and also used in cosmetics, detergent and the intermediates of various surfactants; 4)Technical Detail: *Iodine valence gl/100g: 12-20ºC <2.0 (approximately 0.5) *saponification valence mgkoH/g: 206-211 （200 type）,203-214(400 type),193-220(800 type) *Acidity mgkoH/g: 205-210（200 type）,202-212(400 type),192-218(800 type) *freezing point ºC: 54-57(200 type) ,>54 (400 type),>52(800 type) *Water content%<: 0.2(200type),0.2(400type),0.3(800type) 5)Parking: inner lining plastic bag, exterior is woven bag; the net weight of each bag is 25kg.