Focus on Cellulose ethers

Hydroxypropyl Methylcellulose data data

Hydroxypropyl Methylcellulose data data

Heino tafura inotsanangura imwe yakajairika tekinoroji data yehydroxypropyl methylcellulose (HPMC):

Property Value
Chimiro chemakemikari Cellulose derivative
Molecular formula (C6H7O2(OH)xm(OCH3)yn(OCH2CH3)z)n
Molecular weight range 10,000 - 1,500,000 g / mol
Chitarisiko Hupfu hwakachena kusvika kuchena
Solubility Soluble mumvura, insoluble mu organic solvents
Viscosity range 5 - 100,000 mPa · s (zvichienderana negiredhi reviscosity uye kutarisisa)
Gelation tembiricha range 50 - 90 ° C (zvichienderana negiredhi reviscosity uye kuisa pfungwa)
pH range 4.0 - 8.0 (1% mhinduro)
Hunyoro hwemukati ≤ 5.0%
Ash content ≤ 1.5%
Heavy metals ≤ 20 ppm
Microbial miganhu ≤ 1,000 cfu/g yehuwandu hweaerobeic microbial count; ≤ 100 cfu/g yembiriso yakasanganiswa uye molds
Residual solvents Inoenderana neUSP 467
Particle size distribution 90% yezvikamu zviri mukati me80 - 250 µm
Sherufu hupenyu 2-3 makore kana akachengetwa munzvimbo inotonhorera, yakaoma

Izvo zvakakosha kuti uzive kuti idzi tekinoroji data dzinogona kusiyana zvichienderana negiredhi chairo uye mugadziri weHPMC. Zvinogara zvichikurudzirwa kubvunza zvakatemwa zvechigadzirwa zvinopihwa nemugadziri kune chaiyo chigadzirwa chauri kushandisa.


Nguva yekutumira: Mar-04-2023
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