Cellulose Microcrystalline/CAS:9004-34-6
Nkọwa Dị Mkpirikpi:
Aha ngwaahịa: Microcrystalline cellulose
CAS:9004-34-6
MF: (C12H20O10)n
MW: 324.28
ỤDỊ:
Njupụta: 1.5 g/cm3 (20℃)
Ebe ọkụ: 164°C
nkọwapụta
| ihe | Snkọwapụta |
| Ọdịdị | Ntụ ntụ ọcha ruo na ntụ ọcha na-acha ọcha |
| Ọdịnaya selulose% | 97-102 |
| PH | 5.0-7.5 |
| Ọdịnaya ntụ | ≤0.3% |
| Mfu mgbe a kpọrọ nkụ | ≤10% |
| Ihe ndị a gbazere n'ime mmiri | ≤0.2% |
Ojiji
Ihe nzacha: ihe na-egbochi achịcha, ihe na-ejikọ; ihe na-eme ka mmanya sie ike; ihe na-agbaze; ihe na-eme ka ihe dị nro; ihe na-eme ka ihe dị arọ; ihe na-eme ka mmiri dị ọcha. EEC kọwara ya maka ịsacha biya. Dịka e kwuru na GB 2760-96, a na-ewere ya dị ka ihe na-eme ka mmanya sie ike. Dịka iwu EEC-HACSG si dị, a gaghị eji ya na nri ụmụaka. Dịka ihe na-egbochi achịcha, na China, a na-ekwe ka e jiri ya na ntụ ntụ nwere oke ojiji nke 50g/kg; enwere ike iji ya na ice cream na oke ojiji nke 40g/kg; enwere ike iji ya na ntụ ude dị mfe na abụba akwụkwọ nri na oke ojiji nke 20.0g/kg. Mgbe otu hydroxyl dị na macromolecule cellulose na-enweta mmeghachi omume esterification ma ọ bụ etherification, enwere ike nweta ọtụtụ ngwaahịa bara uru. Esters cellulose etinyere n'ezie gụnyere: cellulose nitrate, cellulose acetate, cellulose acetate butyrate na cellulose xanthate. Ihe ndị dị na cellulose ethers gụnyere: methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, cyanoethyl cellulose, hydroxypropyl cellulose na hydroxypropyl methyl cellulose, wdg. Na mgbakwunye, enwere ngwakọta nke ester-ether. Enwere ike itinye microcrystalline cellulose n'ọrụ dịka ákwà, uwe, ime biya, nri, na ime akwụkwọ.
Mkpụrụ ndụ microcrystalline cellulose na-enwekarị obere njupụta maka ngwaahịa akpọnwụrụ akpọnwụ na njupụta dị elu maka ngwaahịa akpọnwụrụ akpọnwụ. Mmiri dị n'ime ya dị ihe dị ka 5%. Mkpụrụ ndụ microcrystalline cellulose anaghị agbaze mana ọ naghị agbaze na mmiri, ọ naghị agbaze na asịd ndị a gwakọtara agwakọta, ihe mgbaze organic na mmanụ, ọ na-aza ma na-agbaze n'ime mmiri alkaline ndị a gwakọtara agwakọta. Ifesa ntụ ntụ cellulose microcrystalline n'ime mmiri na-emepụta gel ma ọ bụ pasta ọcha. E wezụga ndị a gwakọtara agwakọta nke ukwuu, ọ na-adịgide ruo ọtụtụ afọ.
Nkwakọ ngwaahịa na Mbupu
dị ka ihe ndị ahịa chọrọ.
Ọ bụ nke ngwongwo nkịtị ma nwee ike ibuga ya site n'oké osimiri na ikuku
Debe ma chekwaa
Ndụ nchekwa: ọnwa 24 site na ụbọchị emepụtara ya na ngwugwu mbụ e meghebeghị emepe echekwara n'ebe dị jụụ na kpọrọ nkụ nke na-anaghị anwụ kpọmkwem, mmiri.
Ụlọ nkwakọba ihe ikuku, Ọkụ dị ala, Nkewapụrụ na ihe ndị na-eme ka oxidants, asịd.
