Mutengesi weTetrachloroethylene (Perchloroethylene, PERC) South Africa
Chinhu chinonyungudutsa chine chlorine chisingabatike chine simba rekugadzirisa mafuta, mafuta, uye fiber dzekugadzira — chinoshandiswa zvakanyanya mukuchenesa zvinhu zvisina kuomeswa, kubvisa mafuta eutsi, kuchenesa simbi, uye kubvisa zvinhu zvinonyungudutsa.
Kumbira QuoteKurumidza Specs
| CAS Nha. | 127-18-4 |
| IUPAC Zita | Tetrachloroethene |
| Synonyms | Perchloroethylene, PERC, PCE, "chinhu chinonyungudutsa mvura yakaoma" |
| Kuonekwa | Mvura isina ruvara ine hwema hunotapira hwakaita chlorine |
| Boiling Point | 121 ° C |
| Flash Point | Isingatsve-moto |
| Density | ~1.623 g/cm³ pa20°C |
| Purity | ≥ 99.9% (giredhi rakagadzikana) |
Chii chinonzi Tetrachloroethylene?
Tetrachloroethylene (PERC, perchloroethylene) ichloroethylene ine halogenated yakazara ine fomura CCl₂=CCl₂. Imvura yakakora, isina ruvara, isingatsve ine hwema hunotapira hwe solvent. Kushandiswa kwe chlorination yakakwana yePERC kunoita kuti ive solvent yakanaka kune zvisiri polar uye zvishoma polar organic compounds - mafuta, mafuta, waxes, synthetic polymer fibers, resins, uye adhesives - ukuwo ichiita kuti isatsve, mukana mukuru wekuchengetedza pamusoro pe hydrocarbon solvents mumabasa ekuchenesa nekubvisa maindasitiri akawanda. Inogara yakasimba mumamiriro ekushanda akajairika kana yakasimbiswa zvakanaka (kazhinji ne epoxide kana amine stabilizers shoma).
Kuchenesa neDry Cleaning uye Kubvisa Mafuta muSimbi
Kuchenesa kusina kupiswa (dry cleaning) ndiko kunonyanya kushandiswa kwePERC pasi rose: kugona kwayo kugadzira mafiber ekugadzira (polyester, nylon, acetate), mafuta, uye madhayi, pamwe chete nekusabvira kwayo kupisa uye kugona kudzoreredza kuburikidza nekudistilla, kwakaita kuti ive mvura inonwisa mvura yakaoma uye inoramba ichishandiswa zvakanyanya mumabasa ekuchenesa kusina kupiswa muSouth Africa. Mukubvisa mafuta nesimbi, PERC inoshandiswa mumatangi ekubvisa mafuta ane utsi hwepamusoro uye mukuchenesa kunotonhora kubvisa mafuta ekugadzira, kudhonza macompounds, uye machira ekudzivirira ngura kubva muzvikamu zvesimbi isati yapendwa, kuputirwa, kana kuunganidzwa. Kuwanda kwayo kwakanyanya uye kusabvira moto ndizvo zvakanakira mukubvisa mafuta ane utsi hwemhepo uko kunoshandiswa utsi hwemvura inopisa.
Mamiriro Ekutonga uye Kubata Zvakachengeteka
PERC inorongwa semushonga unokonzera kenza kuvanhu (IARC Group 2A) uye inotongwa nemiganhu yakasimba yekusvibiswa pabasa (OELs) uye kudzora kusvibiswa kwemhepo munzvimbo zhinji. Michina yekuchenesa yakaoma ine tambo dzakavharika uye masisitimu ekubvisa mafuta emhepo akavharwa anodiwa kuderedza kusvibiswa kwevashandi nenharaunda. Terracore Chemicals inopa PERC yakagadzikana mumadhiramu ine magwaro akazara ekuchengetedza, kusanganisira SDS inoenderana nemitemo yemuno. Tinopa mazano kune vatengi nezvekubata zvakachengeteka, kuchengetedza kudonhedzwa kwemvura, uye zvinodiwa zvemutemo zvekuchengetedza nekushandisa PERC.
Applications
- Mvura yekuchenesa mbatya nemachira isina kuomeswa
- Kubvisa mafuta muhutsi hwezvinhu zvesimbi zvakanyatsonaka
- Kuchenesa zvinhu zvakagadzirwa nemashini uye magungano panguva yechando
- Kubviswa kwesolvent mukugadzirwa kwemaindasitiri
- Kubviswa kwezvinonamira uye resin kubva pamidziyo
- Kemikari yepakati yekugadzira fluorocarbon
Unoda Mutengo weTetrachloroethylene Here?
Tiudzei giredhi raunoda uye huwandu hwaunoda — tichapindura nemitengo, zvirevo, uye nguva yekupihwa basa.
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