n-Butane R600
n-Butane yog ib qho tseem ceeb ntawm cov khoom siv tshuaj lom neeg thiab cov roj huv, uas yog cov tsev neeg alkane hydrocarbon.
Ⅰ. Physical thiab Chemical Properties
Cov ntaub ntawv yooj yim
| Yam khoom | Kev piav qhia |
|---|---|
| Tshuaj Formula | C₄H₁₀ |
| Molecular Structure | Txoj saw ncaj (CH₃CH₂CH₂CH₃) |
| Molecular Luj | 58.12 g / mol |
| CAS Nr | 106-97-8 |
| EINECS Number | 203-448-7 |
| Tus nab npawb tub yees | R600 |
Lub cev muaj zog
| Parameter | Tus nqi | Sau ntawv |
|---|---|---|
| Qhov tshwm sim | Xim tsis muaj roj | Nyob rau hauv chav tsev kub thiab siab |
| tsw | Me ntsis tsw tsw qab; cov khoom ntshiab tsis muaj ntxhiab tsw | |
| Melting Point | -138.4 ° C | |
| Boiling Point | -0.5 degree | Ze rau 0 degree, nyuaj rau vaporize hauv qhov chaw txias |
| Liquid Density | 0.58 kg / L(cov txheeb ze ntom ntom, dej=1) | Thaum 20 degree |
| Gas ntom | 2.48 kg/m³ | Ntawm 25 degree |
| Vapor Density (Air=1) | 2.1 | Hnyav tshaj huab cua |
| Saturated Vapor Pressure | 213.7 kPa (21.1 degree) | |
| Qhov ntsuas kub tseem ceeb | 151.9℃~ 153.2 degree | |
| Critical Siab | 3.79 MPa ua | |
| Kub ntawm combustion | -2637.8 kJ/mol | |
| Dej Solubility | Insoluble hauv dej | Yooj yim soluble hauv ethanol, ether, chloroform |
Ⅱ. Kev nyab xeeb & Cia
2.1 Kev Soj Ntsuam Kev Nyab Xeeb
n-Butane raug cais raws li aChav Kawm 2.1 Flammable Gasnrog cov teeb meem loj hauv qab no:
Hluav taws thiab tawg txaus ntshai:
Flammable heev: Ua kom tawg sib xyaw nrog cua. Kev pheej hmoo ntawm hluav taws kub thiab tawg thaum raug hluav taws kub los yog qhib nplaim taws.
Vapor Heavier dua huab cua: Gas hnyav dua li huab cua thiab tuaj yeem taug kev deb ntawm av mus rau qhov chaw taws teeb nyob deb, ua rauflashback. Qhov no yog qhov teeb meem loj.
Reacts nruj nrog Oxidizers: Cov tshuaj tiv thaiv hnyav thaum sib cuag nrog oxidizers.
Static Charge Accumulation: Cov khoom ua kua tuaj yeem tsim hluav taws xob zoo li qub thaum hloov chaw; cov khoom siv yuav tsum muaj kev txhim khu kev qha zoo li qub.
Kev Nyab Xeeb Kev Nyab Xeeb:
Inhalation Hazard: High concentrations muaj asphyxiating thiab narcotic teebmeem, ua rau kiv taub hau, tsaug zog, thiab coma.
Frostbite Risk: Kua n-butane tiv rau ntawm daim tawv nqaij tuaj yeem ua rau mob khaub thuas hnyav heev.
2.2 Kev Cia Siab
| Yam khoom | Kev xav tau |
|---|---|
| Qhov chaw khaws cia | Txias, zoo- tso cua txias rau lub tsev khaws khoom rau cov pa taws. |
| Kub txwv | Tsis tshaj 30 degree. |
| Cov khoom siv hluav taws xob | Siv tawg- pov thawj teeb pom kev zoo thiab qhov cua. Txwv tsis pub siv cov cuab yeej siv lossis cov cuab yeej uas yuav ua rau muaj hluav taws. |
| Kev cais | Khaws cais ntawm oxidizers thiab halogens. Tsis txhob sib tov. |
| Cov khoom siv tua hluav taws | Muab cov khoom tsim nyog thiab hom khoom siv tua hluav taws. |
Ⅲ. Environmental Standards & Regulations
3.1 Ib puag ncig phooj ywg
n-Butane muaj qhov zoo ntawm ib puag ncig zoo:
ODP (Ozone Depletion Potential)=0: Tsis ua puas rau txheej ozone kiag li.
GWP (Lub Ntiaj Teb Warming Potential) Tsawg heev: Ntau yam qis dua li cov fluorocarbon refrigerants.
Qhov no ua rau n-butane ib puag ncig tus phooj ywg ua haujlwm dej nyiam hauv cov ntawv thov xws li cov tub yees, tshuab tshuab, thiab cov tshuab aerosol, tshwj xeeb tshaj yog nyob rau hauv lub ntiaj teb cov ntsiab lus ntawm phasing down HFCs.
3.2 Environmental Fate
Atmospheric Degradation: Theoretical degradation ib nrab-lub neej yog 6.3 hnub thaum hydroxyl radical concentration yog 5.00 × 10⁵ radicals/cm³.
Bioaccuulation: Theoretical BCF=33, qhia tias muaj peev xwm bioaccumululation tsawg.
Cov ntsiab lus
n-Butane yog ib yam tshuaj muaj txiaj ntsig. Nws muaj ntau yam khoom, ua haujlwm ua roj, tub yees, kiv cua, thiab chemical raw khoom. Nws cov ntsiab lus kub ntawm -0.5℃yuav tsum tau muab cov kua dej tso rau hauv siab, thiab nws cov cuab yeej hnyav dua li huab cua txhais tau tias cov pa roj tuaj yeem khaws cia hauv qhov chaw qis, xav tau kev saib xyuas tshwj xeeb hauv kev tswj hwm kev nyab xeeb.
Ib puag ncig, n-butane muaj cov txiaj ntsig tseem ceeb (ODP=0, GWP tsawg heev), ua raws li kev coj noj coj ua thoob ntiaj teb ntawm ntsuab thiab qis - carbon hloov pauv. Nrog rau kev siv lub teb chaws cov qauv rau aerosol-qib n-butane thiab kev thawb los ntawm ib puag ncig cov cai, n-butane txoj kev lag luam nyob rau hauv siab - cov ntawv thov kawg yuav tsum muaj zog.
Yog tias koj muaj kev xav tau rau cov khoom siv tshuaj, thov koj xav tiv tauj peb hauv xov tooj lossis email. Peb tos ntsoov rau koj qhov kev nug.
Peb qhov chaw nyob
No.815, Geguan Road, Getang Street, Jiangbei Tshiab District, Nanjing nroog, Suav teb
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E -mail
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