HPMC Hydroxypropyl Methyl Cellulose belongs to one of the non-ionic cellulose mixed ethers and is a semi-synthetic, inactive, viscoelastic polymer. It is widely used in construction, pharmaceutical, food,cosmetic, detergent, paints, as thickener, emulsifi
1,2-Diaminopropane (1,2-propanediamine) CAS 78-90-0, is an organic compound with the formula CH3CH(NH2)CH2NH2. its melting point is -37℃, boiling point is 120-122℃,density is 0.87g/ml(at 25℃). it is a colorless liquid with fishy ammoniacal odor. It is us