Glycerin | 56-81-5
Product Physical Data:
| Khoom npe | Glycerin |
| Cov khoom | Tsis muaj xim, tsis muaj ntxhiab tsw viscous kua nrog qab zib |
| Melting Point (°C) | 290 (101.3KPa); 182 (266 KPa) |
| Boiling Point (°C) | 20 |
| Relative ceev (20 ° C) | 1.2613 ib |
| Relative vapor density (air = 1) | 3.1 |
| Qhov kub thiab txias (°C) | 576.85 ib |
| Critical siab (MPa) | 7.5 |
| Refractive Index (n20/D) | 1.474 ib |
| Viscosity (MPa 20 / D) | 6.38 ib |
| Qhov hluav taws kub (°C) | 523 (PT); 429 (iav) |
| Flash point (°C) | 177 |
| Solubility | tuaj yeem nqus tau hydrogen sulfide, hydrocyanic acid, sulfur dioxide. Yuav miscible nrog dej, ethanol, 1 feem ntawm cov khoom yuav yaj nyob rau hauv 11 qhov chaw ntawm ethyl acetate, txog 500 feem ntawm ether, insoluble nyob rau hauv benzene, carbon disulfide, trichloromethane, carbon tetrachloride, roj av ether, chloroform, roj. Yooj yim lub cev qhuav dej, dej poob los tsim bis-glycerol thiab polyglycerol, thiab lwm yam. Oxidation los tsim glycerol aldehyde thiab glycerol acid. Solidifies ntawm 0 ° C, tsim rhombohedral crystals nrog glitter. Polymerisation tshwm sim ntawm qhov kub ntawm li 150 ° C. Tsis tuaj yeem ua ke nrog anhydrous acetic anhydride, potassium permanganate, muaj zog acids, corrosives, fatty amines, isocyanates, oxidising agents. |
Product Description:
Glycerin, hu ua glycerol hauv cov qauv hauv tebchaws, yog xim tsis muaj xim, tsis muaj ntxhiab, qab zib-tswnyob rau hauv cov khoom organic nrog cov tsos ntawm cov pob tshab kua nplaum. Feem ntau hu ua glycerol. Glycerol, tuaj yeem nqus dej noo los ntawm huab cua, tab sis kuj nqus hydrogen sulfide, hydrogen cyanide thiab sulfur dioxide.
Product Properties thiab Stability:
1.Colorless, pob tshab, tsis muaj ntxhiab, viscous kua nrog qab zib saj thiab hygroscopicity. Miscible nrog dej thiab cawv, amines, phenols nyob rau hauv ib qho kev faib ua feem, aqueous tov yog nruab nrab. Soluble nyob rau hauv 11 zaug ethyl acetate, txog 500 zaug ether. Insoluble nyob rau hauv benzene, chloroform, carbon tetrachloride, carbon disulfide, roj av ethers, roj, ntev saw fatty alcohols. Combustible, tuaj yeem ua rau combustion thiab tawg thaum ntsib cov oxidising muaj zog xws li chromium dioxide thiab potassium chlorate. Nws kuj yog ib qho hnyav hnyav rau ntau cov ntsev inorganic thiab gases. Tsis-corrosive rau hlau, tuaj yeem oxidised rau acrolein thaum siv los ua hnyav.
2.Chemical zog: esterification cov tshuaj tiv thaiv nrog acid, xws li nrog benzene dicarboxylic acid esterification los tsim alkyd resin. Transesterification cov tshuaj tiv thaiv nrog ester. Reacts nrog hydrogen chloride los tsim chlorinated cawv. Glycerol lub cev qhuav dej muaj ob txoj hauv kev: lub cev qhuav dej kom tau txais diglycerol thiab polyglycerol; intramolecular dehydration kom tau acrolein. Glycerol reacts nrog cov hauv paus los tsim cov cawv. Cov tshuaj tiv thaiv nrog aldehydes thiab ketones tsim acetals thiab ketones. Oxidation nrog dilute nitric acid tsim glyceraldehyde thiab dihydroxyacetone; oxidation nrog periodic acid tsim formic acid thiab formaldehyde. Nrog cov oxidants muaj zog xws li chromic anhydride, poov tshuaj chlorate lossis poov tshuaj permanganate tiv tauj, tuaj yeem ua rau tawg lossis tawg. Glycerol tuaj yeem ua lub luag haujlwm ntawm nitrification thiab acetylation.
3. Tsis muaj tshuaj lom. Txawm hais tias tag nrho cov dej haus txog li 100g ntawm cov tshuaj dilute yog tsis muaj teeb meem, nyob rau hauv lub cev tom qab hydrolysis thiab oxidation thiab ua ib qhov chaw ntawm as-ham. Hauv kev sim tsiaj, nws muaj cov tshuaj loog zoo ib yam li cawv thaum nws ua rau haus ntau heev.
4. Muaj nyob rau hauv cov luam yeeb ci, luam yeeb dawb, luam yeeb, thiab luam yeeb.
5.Ua ib txwm nyob hauv luam yeeb, npias, cawv, cocoa.
Khoom siv:
1. Resin kev lag luam: siv rau hauv kev tsim cov alkyd resin thiab epoxy resin.
2. Kev lag luam txheej: siv hauv kev lag luam txheej los ua ntau yam alkyd resins, polyester resins, glycidyl ethers thiab epoxy resins, thiab lwm yam.
3. Textile thiab luam ntawv thiab dyeing kev lag luam: siv los ua lubricant, ya raws absorber, ntaub wrinkle-proof shrinkage kho tus neeg saib xyuas, diffusion tus neeg saib xyuas thiab nkag mus rau tus neeg sawv cev.
Cov txheej txheem cia khoom:
1. Khaws rau hauv qhov chaw huv si thiab qhuav, yuav tsum tau them sai sai rau kev ntim khoom ntim. Ua tib zoo saib xyuas cov dej-pov thawj, dej-pov thawj, exothermic, nruj me ntsis txwv tsis pub sib xyaw nrog cov oxidants muaj zog. Nws tuaj yeem khaws cia rau hauv tin-plated lossis stainless hlau ntim.
2. Ntim hauv txhuas nruas los yog galvanized hlau nruas los yog khaws cia rau hauv lub tank lined nrog phenolic resin. Nws yuav tsum tau tiv thaiv los ntawm noo noo, cua sov thiab dej thaum lub sij hawm cia thiab thauj. Nws yog txwv tsis pub muab glycerol ua ke nrog cov tshuaj muaj zog oxidizing (xws li nitric acid, poov tshuaj permanganate, thiab lwm yam). Nws yuav tsum tau muab khaws cia thiab thauj raws li cov kev cai dav dav ntawm cov tshuaj tua hluav taws.
Cov ntawv khaws cia khoom:
1. Khaws rau hauv qhov chaw txias, cua txias.
2. Khaws kom deb ntawm qhov hluav taws kub thiab cua sov.
3. Khaws lub thawv kaw.
4.Nws yuav tsum tau muab cais los ntawm oxidising agents, txo cov neeg ua hauj lwm, alkalis thiab edible tshuaj, tsis txhob sib tov cia.
5.Txhim kho qhov tsim nyog ntau yam thiab ntau ntawm cov khoom siv tua hluav taws.
6.Qhov chaw cia khoom yuav tsum tau nruab nrog cov khoom siv kho mob thaum muaj xwm ceev thiab cov khoom siv vaj tse tsim nyog.
