Mono propylene Glycol CAS 57-55-6
| Catalog Number | xwm 91907 |
| Khoom npe | Mono propylene Glycol |
| CAS | 57-55-6 |
| Molecular Formula | C3H8O2 |
| Molecular Luj | 76.09 ib |
| Cov ntaub ntawv khaws cia | 5-30 ° C |
| Harmonized tariff Code | 29053200 ib |
Khoom Specification
| Qhov tshwm sim | Transperent kua |
| Assay | 99% min |
| Melting point | -60 ° C (lit.) |
| Boiling point | 187 ° C (lit.) |
| ceev | 1.036 g / mL ntawm 25 ° C (lit.) |
| vapor ceev | 2.62 (vs huab cua) |
| vapor siab | 0.08 hli Hg (20 ° C) |
| Refractive Index | n20/D 1.432 (lit.) |
| Fp | 225 ° F |
| pka ua | 14.49 ± 0.20 (Tshaj tawm) |
| Specific Gravity | 1.038 (20/20 ℃) 1.036 ~ 1.040 |
| PH | 6-8 (100g / l, H2O, 20 ℃) |
| tawg txwv | 2.4-17.4% (V) |
| Dej Solubility | miscible |
| rhiab heev | Hygroscopic |
Propylene glycol yog siv rau cov ntawv zoo sib xws li lwm cov glycols.
Propylene glycol yog ib qho tseem ceeb raw khoom rau unsaturated polyester, epoxy resin, thiab polyurethane resin.Kev siv nyiaj hauv cheeb tsam no suav txog li 45% ntawm tag nrho kev noj propylene glycol.Xws li polyester unsaturated yog siv dav rau cov yas reinforced thiab nto txheej.Propylene glycol yog zoo heev nyob rau hauv viscosity thiab hygroscopicity thiab yog non-toxic, thiab yog li yog dav siv raws li hygroscopic tus neeg saib xyuas, antifreeze, lubricants thiab hnyav nyob rau hauv cov zaub mov, tshuaj thiab tshuaj pleev ib ce kev lag luam.Hauv kev lag luam khoom noj khoom haus, propylene glycol reacts nrog fatty acid muab propylene ester ntawm fatty acids, thiab yog siv los ua zaub mov emulsifier;Propylene glycol yog ib qho hnyav hnyav rau flavorings thiab pigments.Propylene glycol feem ntau yog siv los ua cov kuab tshuaj, softeners thiab excipients, thiab lwm yam.Propylene glycol kuj tseem siv los ua cov kuab tshuaj thiab cov softener rau cov tshuaj pleev ib ce vim nws muaj kev sib nrig sib solubility nrog ntau yam txuj lom.Propylene glycol kuj yog siv los ua luam yeeb moisturizing agents, antifungal agents, food processing equipment lubricants and solvents for food marking number.Aqueous tov ntawm propylene glycol yog ib tug zoo anti-freeze tus neeg saib xyuas.
Tom ntej no mus rau dej, propylene glycol yog lub tsheb thauj khoom uas siv ntau tshaj plaws hauv cov tshuaj pleev ib ce.Nws muaj cov tawv nqaij permeation zoo dua glycerin, thiab nws kuj ua rau muaj kev zoo siab nrog cov roj tsawg dua glycerin.Propylene glycol yog siv los ua ib qho humectant vim nws nqus dej los ntawm huab cua.Nws kuj yog ib qho hnyav rau cov tshuaj tiv thaiv oxidants thiab preservatives.Tsis tas li ntawd, nws muaj cov khoom tiv thaiv kab mob thiab cov kab mob fungi thaum siv nyob rau hauv qhov ntau ntawm 16 feem pua lossis siab dua.Muaj kev txhawj xeeb tias propylene glycol yog qhov ua rau khaus ntawm qhov siab, txawm hais tias nws zoo li muaj kev nyab xeeb heev ntawm kev siv qib qis dua 5 feem pua.
Propylene Glycol yog cov tshuaj humectant thiab tsw qab uas yog polyhydric cawv (polyol).Nws yog ib tug ntshiab, viscous kua nrog tiav solubility nyob rau hauv dej ntawm 20 ° c thiab zoo roj solvency.Nws ua haujlwm zoo li cov tshuaj humectant, zoo li glycerol thiab sorbitol, hauv kev tswj cov dej noo xav tau thiab kev ntxhib los mos hauv cov khoom noj xws li cov txiv maj phaub thiab cov icing.Nws ua haujlwm raws li cov kuab tshuaj rau cov tsw thiab cov xim uas yog insoluble hauv dej.nws kuj yog siv rau hauv dej haus thiab khoom qab zib.
