Earth Stone Chemical

METHYL CELLULOSE

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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

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