Lactic Acid CAS 50-21-5
| Catalog Number | XD92000 |
| Khoom npe | Lactic Acid |
| CAS | 50-21-5 ib |
| Molecular Formula | C3H6O3 |
| Molecular Luj | 90.08 ib |
| Cov ntaub ntawv khaws cia | 2-8 ° C |
| Harmonized tariff Code | 2918100 ib |
Khoom Specification
| Qhov tshwm sim | Dawb hmoov |
| Assay | 99% min |
| Melting point | 18 ° C |
| alpha | -0.05 ºC (c = zoo 25 ºC) |
| Boiling point | 122 ° C / 15 mmHg (lit.) |
| ceev | 1.209 g / mL ntawm 25 ° C (lit.) |
| vapor ceev | 0.62 (vs huab cua) |
| vapor siab | 19 hli Hg (@ 20 ° C) |
| Refractive Index | n20/D 1.4262 |
| Fp | > 230 ° F |
| solubility | Miscible nrog dej thiab nrog ethanol (96 feem pua). |
| pka ua | 3.08 (ntawm 100 ℃) |
| Specific Gravity | 1.209 ib |
| Dej Solubility | SOLUBLE |
Lactic acid (sodium lactate) yog cov khoom siv ntau lub hom phiaj siv los ua cov khoom khaws cia, exfoliant, moisturizer, thiab muab cov kua qaub rau kev tsim.Nyob rau hauv lub cev, lactic acid muaj nyob rau hauv cov ntshav thiab cov nqaij ntshiv raws li ib yam khoom ntawm cov metabolism hauv qabzib thiab glycogen.Nws kuj yog ib feem ntawm daim tawv nqaij lub ntuj moisturizing yam.Lactic acid muaj dej ntau dua li glycerin.Cov kev tshawb fawb qhia tau hais tias muaj peev xwm ua kom muaj peev xwm tuav tau dej ntawm stratum corneum.Lawv kuj qhia tau hais tias pliability ntawm stratum corneum txheej yog ze ze rau kev nqus ntawm lactic acid;uas yog, ntau npaum li cas ntawm absorbed lactic acid, ntau pliable lub stratum corneum txheej.Cov kws tshawb fawb tau tshaj tawm tias kev siv cov tshuaj txuas ntxiv tsim nrog lactic acid nyob rau hauv qhov sib txawv ntawm 5 thiab 12 feem pua muab kev txhim kho me me mus rau nruab nrab hauv kev nplua wrinkling thiab txhawb cov tawv nqaij softer, smoother.Nws cov khoom exfoliating tuaj yeem pab hauv cov txheej txheem tshem tawm cov xim ntau dhau ntawm daim tawv nqaij, nrog rau kev txhim kho daim tawv nqaij zoo nkauj thiab hnov.Lactic acid yog ib qho alpha hydroxy acid tshwm sim hauv cov kua mis qaub thiab lwm qhov chaw tsis tshua paub, xws li npias, pickles, thiab khoom noj uas ua los ntawm cov kab mob fermentation.Nws yog caustic thaum siv rau ntawm daim tawv nqaij nyob rau hauv heev concentrated daws.
Lactic Acid yog ib qho acidulant uas yog cov organic acid uas muaj nyob rau hauv cov mis nyuj, nqaij, thiab npias, tab sis feem ntau yog txuam nrog mis nyuj.Nws yog cov kua syrupy muaj li 50 thiab 88% aqueous daws, thiab yog mis-cible hauv dej thiab cawv.Nws yog kub ruaj khov, nonvolatile, thiab muaj ib tug du, mis nyuj acid saj.Nws ua haujlwm raws li tus neeg sawv cev tsw, preservative, thiab acidity adjuster hauv cov khoom noj.Nws yog siv nyob rau hauv spanish txiv ntseej los tiv thaiv spoilage thiab muab tsw, nyob rau hauv qhuav qe hmoov los txhim kho dispersion thiab whipping zog, nyob rau hauv cheese kis, thiab nyob rau hauv zaub xam lav hnav khaub ncaws mix.
