Glycerol | 56-81-5
Khoom Description
Glycerol (los yog glycerine, glycerin) yog ib qho yooj yim polyol (qab zib cawv) compound. Nws yog ib qho tsis muaj xim, tsis muaj ntxhiab, kua nplaum uas yog siv dav hauv cov tshuaj formulations. Glycerol muaj peb pawg hydroxyl uas yog lub luag haujlwm rau nws cov solubility hauv dej thiab nws qhov xwm txheej hygroscopic. Cov pob txha glycerol yog lub hauv paus rau tag nrho cov lipids hu ua triglycerides. Glycerol yog qab zib-tasting thiab tsis muaj toxicity.Kev lag luam khoom noj hauv cov khoom noj thiab dej haus, glycerol ua hauj lwm raws li ib tug humectant, hnyav, thiab sweetener, thiab tej zaum yuav pab khaws cia zaub mov. Nws kuj yog siv los ua cov khoom siv hauv kev lag luam npaj cov khoom noj muaj roj tsawg (xws li, ncuav qab zib), thiab ua tus neeg sawv cev thickening hauv liqueurs. Glycerol thiab dej yog siv los khaws qee hom nplooj. Raws li kev hloov piam thaj, nws muaj kwv yees li 27 kilocalories ib teaspoon (qab zib muaj 20) thiab yog 60% qab zib li sucrose. Nws tsis pub cov kab mob uas tsim cov plaques thiab ua rau cov kab noj hniav. Raws li cov khoom noj ntxiv, glycerol tau sau npe E tus lej E422. Nws yog ntxiv rau icing (frosting) los tiv thaiv nws qhov chaw nyuaj heev.Raws li siv rau hauv cov khoom noj, glycerol yog categorized los ntawm American Dietetic Association raws li ib tug carbohydrate. Lub US Food and Drug Administration (FDA) cov npe carbohydrate suav nrog tag nrho cov caloric macronutrients tsis suav nrog cov protein thiab rog. Glycerol muaj cov caloric ntom zoo ib yam li cov suab thaj, tab sis qis glycemic Performance index thiab cov txheej txheem metabolic sib txawv hauv lub cev, yog li qee tus neeg noj zaub mov tau txais glycerol ua cov khoom qab zib uas tsis muaj carbohydrates. kev npaj kho tus kheej, feem ntau yog ib txoj hauv kev txhim kho smoothness, muab lubrication thiab ua ib qho humectant. Nws muaj nyob rau hauv cov tshuaj tiv thaiv kab mob, hnoos syrups, elixirs thiab expectorants, tshuaj txhuam hniav, tshuaj ntxuav qhov ncauj, cov khoom tu tawv nqaij, shaving cream, tshuaj tu plaub hau, xab npum thiab dej raws li tus kheej lubricants. Hauv cov ntaub ntawv ntau npaum li cov ntsiav tshuaj, glycerol yog siv los ua cov ntsiav tshuaj tuav tus neeg sawv cev. Rau tib neeg noj, glycerol yog cais los ntawm US FDA ntawm cov qab zib cawv raws li caloric macronutrient.Glycerol yog ib feem ntawm glycerin xab npum. Cov roj tseem ceeb yog ntxiv rau cov tshuaj tsw qab. Cov xab npum no yog siv los ntawm cov neeg uas muaj cov tawv nqaij rhiab heev, khaus khaus yooj yim vim nws tiv thaiv cov tawv nqaij qhuav nrog nws cov khoom moisturizing. Nws nqus dej noo los ntawm cov khaubncaws sab nraud povtseg thiab ua rau qeeb lossis tiv thaiv kom qhuav thiab evaporation ntau dhau lawm. Txawm li cas los xij, qee qhov kev lees paub tias vim glycerin cov dej noo absorbing zog, nws tuaj yeem ua rau muaj kev cuam tshuam ntau dua li cov txiaj ntsig.Glycerol tuaj yeem siv los ua laxative thaum nkag mus rau hauv qhov quav hauv qhov quav lossis me me (2-10 ml) (enema) daim ntawv; Nws irritates lub qhov quav mucosa thiab induces ib tug hyperosmotic nyhuv.Nrhiav qhov ncauj (feem ntau tov nrog txiv hmab txiv ntoo kua txiv kom txo tau nws qab zib saj), glycerol yuav ua rau ib tug ceev, ib ntus txo nyob rau hauv lub internal siab ntawm lub qhov muag. Qhov no tuaj yeem yog ib qho kev kho mob thaum muaj xwm txheej ceev ntawm qhov muag siab heev.
Specification
| Yam khoom | STANDARD |
| Qhov tshwm sim | Tsis muaj xim, Ntshiab, Syrup kua |
| tsw | Parctically tsw & saj qab zib |
| Color(APHA) = | 10 |
| Glycerin Cov ntsiab lus> = % | 99.5 ua |
| Dej = <% | 0.5 |
| Specification Gravity (25 ℃) > = | 1.2607 Nws |
| Fatty Acid & Ester = | 1.0 |
| Chloride = <% | 0.001 ib |
| Sulphate = <% | 0.002 ib |
| Heavy Metal(Pb) =< ug/g | 5 |
| Hlau =<% | 0.0002 |
| Readliy Carbonizable Tshuaj | Hla |
| Residue ntawm Ignition =<% | 0.1 |
