... thickener, emulsification, water keep ability and film forming ability and oil resistance. The film formed possesses good toughness, flexibility and transparent ... , adhesion, thichening, emulsification, water retension and non-permeability of oil.4,Density: 1.3g/cm³.Apparent density: 0.25-0 ... . Do not wet, and keep froom sunshine when transport. Pharmaceutical Grade Methyl Cellulose CAS# 9004-67-5