Hydroxypropylmethylcellulosa, quae etiam hypromellosa et cellulosa hydroxypropylmethylaether appellatur, ex cellulosa gossypii purissima fit et sub condicionibus alcalinis specialiter aetherificatur.
differentia:
proprietates diversae
Hydroxypropylmethylcellulosa: pulvis vel granula alba vel alba fibrosimilis, variis generibus non-ionicis in mixtura cellulosae pertinens; hoc productum est polymerum viscoelasticum semisyntheticum, inactivum.
Hydroxyethylcellulosa est fibra vel pulvis solidus albus vel flavus, inodorum, non toxicus, cuius materia prima principalis est cellulosa alcalina et etherificatio oxidi aethyleni, quod est aether cellulosae solubilis non ionicus.
Usus differt
In industria pigmentorum, hydroxypropylmethylcellulosa bonam solubilitatem in aqua vel solventibus organicis habet, ut spissator, dispergens et stabilisator. Polyvinylchloridum ut pigmentum removens ad polymerisationem suspensionis adhibetur ad polyvinylchloridum praeparandum, quod late in corio, chartaceis, conservatione fructuum et olerum, textilibus aliisque industriis adhibetur.
Hydroxypropylmethylcellulosa: paene insolubilis in aethanolo absoluto, aethere, acetone; solubilis in solutione colloidali pellucida vel turbida in aqua frigida, late adhibita in tunicis, atramentis, fibris, tinctura, charta fabricanda, cosmeticis, pesticidis, mineralibus, processu productorum, recuperatione olei et industriis pharmaceuticis.
solubilitas diversa
Hydroxypropylmethylcellulosa: paene insolubilis in ethanolo absoluto, aethere, acetono; solubilis in solutione colloidali clara vel leviter turbida in aqua frigida.
Hydroxyethylcellulosa (HEC): Solutiones in variis ambitu viscositatis parare potest et bonas proprietates electrolytorum ad salem dissolvendum habet.
Tempus publicationis: Kal. Dec. MMXXII