Ngwaahịa
Propylene Glycol (PG) 99.5%, 99.9% USP Ọkwa /CAS No.: 57-55-6
Nkọwa ngwaahịa
A na-emepụta ya na nnukwu ọnụ ọgụgụ bụ isi maka mmepụta nke polymers. Na European Union, ọ nwere E-nọmba E1520 maka ngwa nri. Maka ịchọ mma na nkà mmụta ọgwụ, ọnụ ọgụgụ ahụ bụ E490. Propylene glycol dịkwa na propylene glycol alginate, nke a maara dị ka E405. Propylene glycol bụ ngwakọta nke bụ GRAS (nke a na-ahụkarị dị ka nchekwa) site na nchịkwa nri na ọgwụ US n'okpuru 21 CFR x184.1666, FDA kwadoro maka ụfọdụ ojiji dị ka ihe mgbakwunye nri na-apụtaghị ìhè. A kwadoro propylene glycol ma jiri ya mee ihe dị ka ụgbọ ala maka n'elu, ọnụ, na ụfọdụ nkwadebe ọgwụ n'ime eriri afọ na US na na Europe.
Njirimara
| Usoro | C3H8O2 | |
| CAS NO | 57-55-6 | |
| ọdịdị | enweghị agba, uzo, mmiri mmiri viscous | |
| njupụta | 1.0±0.1 g/cm3 | |
| esi ebe | 184.8±8.0 °C na 760 mmHg | |
| flash(ing) ebe | 107.2±0.0 Celsius | |
| nkwakọ ngwaahịa | drum/ISO tank | |
| Nchekwa | Chekwaa n'ebe dị jụụ, ikuku na-eku ume, ebe akọrọ, dịpụrụ adịpụ site na isi ọkụ, ịkwanye na ịkwatu ụgbọ njem kwesịrị ịchekwa dịka ndokwa nke kemịkal na-egbu egbu na-ere ọkụ. | |
* Ihe ndị a bụ naanị maka ntụnye aka. Maka nkọwa, rụtụ aka na COA
Ngwa
| A na-ejikarị ya eme ihe dị ka onye na-emepụta ihe n'ọtụtụ nkwadebe ọgwụ iji mee ka solubility na nkwụsi ike nke ọgwụ ahụ dịkwuo elu. |
N'ime usoro ọgwụ, MEA na-eji ya eme ihe maka nchekwa ma ọ bụ nkwadebe emulsions. Enwere ike iji MEA mee ihe dị ka pH regulator na ịchọ mma.
Ọ bụ sclerosant a na-agba ntụtụ dị ka nhọrọ ọgwụgwọ nke hemorrhoid mgbaàmà. Enwere ike ịgbanye 2-5 ml nke ethanolamine oleate n'ime mucosa dị n'elu hemorrhoid iji mee ka ọnya ọnya na nhazi nke mucosal si otú a na-egbochi hemorrhoid ka ọ na-arịdata na ọwa mmiri.
Ọ bụkwa ihe na-eme ka mmiri dị ọcha maka ikuku ikuku ụgbọ ala.
Uru
A na-akpọ ogige ahụ mgbe ụfọdụ (alpha) α-propylene glycol iji mata ọdịiche dị na isomer propane-1,3-diol, nke a maara dị ka (beta) β-propylene glycol. Propylene glycol bụ chiral. Usoro azụmahịa na-ejikarị agbụrụ agbụrụ. A na-emepụta S-isomer site na ụzọ biotechnological.
1,2-Propanediol bụ ihe dị mkpa akụrụngwa maka unsaturated polyester, epoxy resin, polyurethane resin, plasticizer, na surfactant. Ọnụ ego ejiri mee ihe na mpaghara a bụ ihe dịka 45% nke mkpokọta propylene glycol. A na-ejikarị ya eme ihe na mkpuchi elu na plastik siri ike. 1,2-propanediol nwere ezigbo viscosity na hygroscopicity, ma na-ejikarị dị ka hygroscopic gị n'ụlọnga, antifreeze gị n'ụlọnga, mmanu na ihe mgbaze na nri, ọgwụ na ịchọ mma ụlọ ọrụ. N'ime ụlọ ọrụ nri, 1,2-propanediol na-emeghachi omume na acid fatty na-emepụta propylene glycol fatty acid esters, nke a na-ejikarị dị ka emulsifiers nri; 1,2-propanediol bụ ihe mgbaze dị mma maka oge na pigmenti. N'ihi obere nsị ya, a na-eji ya dị ka ihe mgbaze maka ngwa nri na agba nri na ụlọ ọrụ nri. 1,,2-Propanediol a na-ejikarị eme ihe dị ka ihe mgbaze, softener na excipient na mmepụta nke dị iche iche ointments na ointments na ụlọ ọrụ ọgwụ, na dị ka ihe mgbaze maka ịgwakọta ihe, preservatives, ointments, vitamin, penicillin, wdg na ọgwụ na-emepụta ọgwụ. ụlọ ọrụ . N'ihi na propylene glycol nwere ezigbo miscibility na ngwa nri dị iche iche, a na-ejikwa ya dị ka ihe mgbaze na ihe nro maka ịchọ mma. 1,2-Propanediol na-ejikwa dị ka ụtaba moisturizer, antifungal agents, nri na-edozi ngwa mmanu na ihe mgbaze maka nri akara ink. Aqueous ngwọta nke 1,2-propanediol bụ irè antifreeze elekọta mmadụ. A na-ejikwa ya dị ka ihe na-eme mkpọtụ ụtaba, onye na-ahụ maka ọgwụ na-egbu egbu, ihe nchekwa mkpụrụ osisi ripening, antifirize na ihe na-ebu ọkụ, wdg.
