METHYL CELLULOSE

Description Hypromellose (INN), short for hydroxypropyl methylcellulose (HPMC), is a semisynthetic, inert, viscoelastic polymer used as an ophthalmic lubricant, as well as an excipient and controlled-delivery component in oral medicaments, found in a variety of commercial products. As a food additive, hypromellose is an emulsifier, thickening and suspending agent, and an alternative to animal gelatin. Its Codex Alimentarius code (E number) is E464. ITEMS STANDARD Apperance white to grey while,odourless,tasteless powder Apparent density,g/cm3 0.25~0.70 Chromotropic temperature, ℃ 190~200 Carbonification temperature, ℃ 225~230 Densitykg/L 1.39 Relative flammability(700℃ in furnace) 90+ Density,kg/L,1% solution 1.0012 5%solution 1.0117 10%solution 1.0245 Refractive index 1.336 Specific volume of given concentration,mL/g 0.717~0.767 Surface tension,,25℃,mN/m 44~56 Interfacial tension(in paraffin oil),25℃,mN/m 18~30 Fel temperature,℃ 54~70 Relative density 1.29 Area factor(0.0025mm),m2/kg 36.7 water steam,37℃,90%~100%,rh 520 oxygen,24℃ 560 Tensile strength,24℃,50%rh,MPa 58.6~61 Elongation rate,24℃,50%rh,% 5-10 UV stability,500rh excellent Oil resistance excellent UV light transmittance,400nm% 82 290nm% 34 210nm% 6 Refractive index – Softening point, ℃ 240 Melting point℃ 260 Carbonification temperature,℃ 270