Sucrose

Lus piav qhia luv luv:

Lub npe: Sucrose
Lub Npe: Dawb granulated qab zib
CAS Nr .: 57-50-1
EINECS tus ID nkag mus: 200-334-9
Cov mis mos molecular: C12H22O11
Molecular Luj: 342.3

Xa email rau peb

Product Detail

Khoom cim npe

Cov qauv qauv

Lub cev muaj zog
Cov tsos mob: Dawb crystalline tsw tsw khoom
Qhov ceev: 1.5805
Melting point: 185-187 ° C (lit.)
Kub taw tes: 397.76 ° C (kwv yees ntxhib)
Kev sib hloov tshwj xeeb: 67 ºC (c = 26, hauv dej 25 ºC)
Refractivity: 66.5 ° (C = 26, H2O) Flash point 93.3 ° C
Solubility: H2O: 500 mg/mL
Acidity coefficient (pKa): 12.7 (ntawm 25 ° C)
PH: 5.0-7.0 (25 ° C, 1M hauv H2O)

Cov ntaub ntawv kev nyab xeeb
belongs rau cov khoom txaus ntshai
Kev lis kev cai code: 2938909090
Export Tax Refund Rate (%): 9%

Daim ntawv thov
Sucrose yog dav siv hauv cov khoom noj, tshuaj pleev ib ce thiab tshuaj, thiab kuj tseem siv los ua tus qauv rau kev tshuaj xyuas thiab tshawb xyuas.Nws tuaj yeem siv los npaj citric acid, caramel, invert qab zib, pob tshab xab npum, thiab lwm yam. Nws tuaj yeem cuam tshuam kev loj hlob ntawm cov kab mob ntawm cov concentration siab, thiab tuaj yeem siv los ua cov ntsiav tshuaj excipient ntawm preservative thiab antioxidant hauv tshuaj.Lub reagent sucrose yog siv rau kev txiav txim siab ntawm 1- naphthol, kev sib cais ntawm calcium thiab magnesium thiab kev npaj cov kab lis kev cai lom neeg nruab nrab.

Sucrose, qhov tseem ceeb ntawm cov piam thaj hauv cov lus, yog ib hom disaccharide, uas muaj cov molecule ntawm hemiacetal hydroxyl pawg ntawm cov piam thaj thiab cov molecule ntawm hemiacetal hydroxyl pawg ntawm fructose condensed nrog ib leeg thiab lub cev qhuav dej.Sucrose yog qab zib, tsis muaj ntxhiab, soluble hauv dej thiab glycerol, thiab me ntsis soluble hauv cawv.Nws yog spinogenic, tab sis tsis muaj cov nyhuv photochromic.Sucrose yuav luag universally pom nyob rau hauv nplooj, paj, stems, noob thiab txiv hmab txiv ntoo ntawm cov nroj tsuag lub nceeg vaj.Nws yog tshwj xeeb tshaj yog muaj nyob rau hauv qab zib, qab zib beet thiab maple sap.Sucrose muaj qab zib thiab yog ib qho khoom noj tseem ceeb thiab qab zib.Nws muab faib ua cov suab thaj dawb, cov suab thaj xim av, cov suab thaj pob zeb, cov suab thaj pob zeb, thiab cov suab thaj coarse (daj qab zib)
Lub cev muaj zog
Sucrose yog soluble hauv dej heev, thiab nws solubility nce nrog qhov kub thiab txias, thiab nws tsis ua hluav taws xob thaum yaj hauv dej.Sucrose tseem yog soluble hauv aniline, azobenzene, ethyl acetate, amyl acetate, melted phenol, kua ammonia, sib tov ntawm cawv thiab dej thiab sib tov ntawm acetone thiab dej, tab sis nws yog insoluble nyob rau hauv organic solvents xws li roj av, roj av, anhydrous cawv, trichloromethane. , carbon tetrachloride, carbon disulfide thiab turpentine.Sucrose yog cov khoom siv crystalline.Qhov tshwj xeeb lub ntiajteb txawj nqus ntawm cov ntshiab sucrose crystals yog 1.5879, thiab lub ntiajteb txawj nqus ntawm sucrose tov nws txawv nyob ntawm seb qhov concentration thiab kub.Qhov tshwj xeeb kev sib hloov ntawm sucrose yog +66.3 ° txog +67.0 °.
Cov khoom siv tshuaj
Sucrose thiab sucrose daws nyob rau hauv qhov kev txiav txim ntawm tshav kub, kua qaub, alkali, poov xab, thiab lwm yam, tsim ntau yam tshuaj sib txawv.Cov tshuaj tiv thaiv tsis tau tsuas yog nyob rau hauv ncaj qha poob ntawm sucrose, tab sis kuj nyob rau hauv zus tau tej cov tshuaj uas tsim kev puas tsuaj rau cov suab thaj.
Thaum crystallized sucrose yog rhuab mus rau 160 ° C, nws yuav thermally decompose thiab yaj mus rau hauv ib tug tuab thiab pob tshab kua, thiab ces recrystallize thaum txias.Lub sijhawm cua sov yog txuas ntxiv, sucrose yog decomposed rau hauv qabzib thiab defructose.Nyob rau ntawm qhov kub ntawm 190-220 ° C, sucrose yuav dehydrated thiab condensed rau hauv caramel.Cov cua kub ntxiv ntawm caramel tsim cov pa roj carbon dioxide, carbon monoxide, acetic acid thiab acetone.Nyob rau hauv cov av noo, sucrose decomposes ntawm 100 ° C, tso dej thiab darkening xim.Thaum cov tshuaj sucrose yog rhuab rau boiling ntawm atmospheric siab rau ib ntev lub sij hawm, cov yaj sucrose maj mam decomposes rau hauv sib npaug zos cov piam thaj thiab fructose, piv txwv li, hloov dua siab tshiab tshwm sim.Yog hais tias cov tshuaj sucrose yog rhuab saum 108 ℃, nws yuav hydrolyzed sai, thiab ntau dua cov concentration ntawm qab zib tov, qhov tseem ceeb ntawm hydrolysis nyhuv.Cov khoom siv hlau siv nyob rau hauv lub nkoj boiling kuj muaj qhov cuam tshuam rau tus nqi ntawm sucrose hloov dua siab tshiab.Piv txwv li, kev hloov pauv ntawm cov tshuaj sucrose hauv cov hlab ntsha tooj liab yog qhov loj dua hauv cov hlab ntsha nyiaj, thiab cov hlab ntsha iav tsis tshua muaj txiaj ntsig.

Yav dhau los: Tuam Tshoj Potassium Stearate Chaw tsim tshuaj paus

Tom ntej: