REACH-Ua raws NMP lwm txoj kev- NEP muajtsis muaj SVHC / Repr. 1B kev faib tawmraws li EU REACH txoj cai tam sim no, ua rau nws yog qhov kev poob qis - hloov NMP hauv cov ntawv thov uas txwv tsis pub muaj menyuam yaus.
Polar Aprotic Solvent · NMP Alternative · REACH-Ua raws
NEP Solvent - N-Ethyl-2-pyrrolidinone
(1-Ethyl-2-pyrrolidinone / N-Ethyl pyrrolidone / Ethylpyrrolidinone / NEP)
| CAS Nr. | 2687-91-4 |
| IUPAC npe | 1-ethylpyrrolidin-2-ib |
| Synonyms | NEP, 1-ethyl-2-pyrrolidinone, 1-ethyl-2-pyrrolidone, N-ethyl pyrrolidone, ethylpyrrolidinone, ethylpyrrolidone |
| Molecular Formula | C₆H₁₁NO (MW=113.16} g/mol) |
| Solvent Class | Polar aprotic; siab -boiling lactam hnyav |
| REACH xwm txheej | ✓ Tsis yog SVHC ✓ Tsis muaj Repr. 1B ✓ Tsis tas yuav muaj kev tso cai |
| Qib Muaj | Muaj ntau dua lossis sib npaug li 99.0% Electronic / High -Purity Ntau dua lossis sib npaug li 99.5% |
Vim li cas NEP? Cov ntaub ntawv hloov ntawm NMP rau N-Ethyl-2-pyrrolidinone
Lub ntiaj teb kev tswj hwm ib puag ncig rauNMP (N{0}}methyl-2-pyrrolidinone)tau nruj heev: NMP yog cais raws li ib tugReproductive Toxin Category 1B (Repr. 1B) / SVHCraws li EU REACH - muab tso rau hauv Daim Ntawv Tso Cai (Annex XIV) - thiab ua raws li EPA TSCA txoj cai tswj kev pheej hmoo hauv Asmeskas. Qhov no tau tsim kev xav tau sai rau qhov zoo sib xwsNMP lwmuas khaws cov kev sib piv sib piv thiab cov txheej txheem kev ua tau zoo yam tsis muaj kev sib cais ntawm kev ua me nyuam toxicity.
N-Ethyl-2-pyrrolidinone (NEP, CAS 2687-91-4)yog lwm txoj kev. NEP txawv ntawm NMP los ntawm ib qho ntxiv CH₂ pab pawg ntawm nitrogen - ib qho ethyl hloov pauv tsis yog methyl - muab nws yuav luag zoo tib yam tsib- cov qauv lactam nplhaib, sib piv polarity, thiab dav polymer solvency, thaum nqa.tsis muaj Repr. 1B kev faib tawm thiab tsis muaj SVHC xwm txheejraws li EU REACH txoj cai tam sim no. Nws yog qhov ze tshaj plaws qauv analogue rau NMP muaj nyob rau ntawm kev lag luam nplai.
Physical & Chemical Properties of NEP (N-Ethyl-2-pyrrolidinone)
NEP vs NMP - Direct Property Comparison
| Khoom | NEP (N{0}}Ethyl-2-pyrrolidinone) CAS 2687-91-4 Nr |
NMP (N{0}}Methyl-2-pyrrolidinone) CAS 872-50-4 Nr |
|---|---|---|
| N-Substituent | Ethyl (–C₂H₅) | Methyl (–CH₃) |
| Molecular Luj | 113.16 g / mol | 99,13 g / mol |
| Boiling Point | 210-212℃↑ | 202 degree |
| Flash Point | 98℃(kaw khob) | 99℃(qhib khob) |
| Dielectric qhov tsis tu ncua (ε) | ~29.0 | 32.2 |
| Hygroscopicity | qis ↓ (ethyl ntau hydrophobic) | Siab dua |
| REACH SVHC Status | ✓ Tsis yog SVHC | ✗ SVHC / Annex XIV |
| Kev tsim tawm toxicity | ✓ Tsis cais Repr. 1B | ✗ Repr. 1B |
| Yuav tsum muaj kev tso cai EU | ✓ Tsis muaj - siv dawb | ✗ Yes - Annex XIV |
Tau qhov twg los: EU ECHA REACH Cov Npe Npe & Cov Ntawv Ntxiv XIV (tam sim no ntawm 2025). Txoj cai tswjfwm raug hloov pauv - txheeb xyuas nrog ECHA ua ntej kev qhia tshwj xeeb.
NEP Specifications - Qib Muaj & Hluav Taws Xob
| Khoom Specification | Qib Industrial Txheej / Petrochemical / Pharma |
Electronic / High{0}}Purity Qib Semiconductor / Roj teeb |
|---|---|---|
| Qhov tshwm sim | Tsis muaj xim pob tshab kua, tsis pom impurities thiab sediment | |
| Purity (GC) | Ntau dua lossis sib npaug li 99.0% | Ntau dua lossis sib npaug li 99.5% |
| Cov ntsiab lus dej | Tsawg dua lossis sib npaug li 0.1% | Tsawg dua lossis sib npaug li 0.05% |
| Xim (Pt-Co / APHA) | Tsawg dua los yog sib npaug li 20 | Tsawg dua los yog sib npaug li 10 |
| Hlau impurities | Tsis tau teev tseg | Ib leeg ion Tsawg dua lossis sib npaug rau 1 ppb |
| Boiling Point | 210-212℃(1013 hPa) | |
| Flash Point | 98℃(kaw khob) | |
| Cia ruaj khov | 12 lub hlis (sau npe) | 12 lub hlis (N₂- kaw HDPE) |
| Ntim | 200 kg nruas / 1000 kg IBC / tank tsheb | 200 kg N₂- kaw HDPE nruas |
Ua raws li REACH, RoHS. COA, SDS / MSDS muab rau ib pawg. Tsis muaj kev tso cai REACH xav tau rau kev siv EU.
NEP Solvent Uses & Applications
1. Electronics & Lithium Battery - REACH-Ua raws NMP Hloov
NPE is thethawj REACH-raws li kev poob siab- hloov NMP hauv kev tsim hluav taws xob thiab lithium roj teeb. Nws lactam nplhaib qauv dissolvesPVDF (polyvinylidene fluoride) phau ntawvnrog rau kev ua tau zoo sib piv rau NMP, ua kom cov cathode slurry formulation rau LFP, NMC, thiab NCA cathodes yam tsis ua rau REACH Annex XIV kev tso cai yuav tsum tau - qhov txiav txim kom zoo dua rau EU cov tuam txhab roj teeb thiab lawv cov khoom siv thoob ntiaj teb.
Hauvsemiconductor manufacturing, hluav taws xob-qib NEP (ib leeg hlau ions Tsawg dua lossis sib npaug li 1 ppb) yog qhov hloov ncaj qha rau NMP hauv photoresist stripping thiab precision substrate tu, tshem tawm cov ntoo khaub lig- txuas photoresist zaj duab xis los ntawm silicon wafers thiab iav tso saib substrates yam tsis muaj hlau paug ntawm cov txheej txheem rhiab heev.
2. Coatings & Adhesives - Tsawg-VOC, Siab-Kev ua tau zoo Formulation Solvent
NEP lub siab kub kub (210-212 degree) thiab qis vapor siab ua rau nws zoo heevcoalescing tus neeg sawv cev thiab cosolvent nyob rau hauv siab - khoom thiab dej - raws li txheej. Nws dissolves acrylic, epoxy, thiab polyurethane resins nrog solvency piv rau NMP, txhim kho leveling, adhesion, thiab zaj duab xis tsim - thaum nws REACH- raws li txoj cai tshem tawm txoj cai lub nra rau EU- khw coatings manufacturers nce siab kom tshem tawm NMP los ntawm formulations.
Raws li cov kuab tshuaj nyob rau hauvstructural adhesivesrau kev siv aerospace, tsheb, thiab kev tsim kho, NEP muab kev sib raug zoo nrog siab -kev ua haujlwm polymer systems (epoxy-polyamide, polyurethane-acrylate), ua rau muaj zog thiab kub tsis kam thaum ntsib kev nruj VOC thiab cov neeg ua haujlwm raug cai nyob thoob plaws txhua lub khw loj.
3. Pharmaceutical Synthesis - ICH-Compatible Reaction & Extraction Solvent
NEP yog siv los ua ib qhotshuaj tiv thaiv nruab nrab thiab extraction hnyavnyob rau hauv kws tshuaj API synthesis, tshwj xeeb tshaj yog rau cov tshuaj tiv thaiv uas yuav tsum tau siab - boiling, tshuaj inert kuab tshuaj uas stabilize rhiab intermediates. Nws cov biocompatibility zoo thiab qis dua toxicity piv rau NMP ua rau nws haum rau cov chaw tsim tshuaj.
ICH Q3C residual kuab tshuaj cais:NEP tam sim no tsis tau teev tseg raws li Chav Kawm 1 lossis Chav Kawm 2 hnyav hauv ICH Q3C - tsis zoo li NMP (Class 2, PDE 5.3 mg / hnub) - uas txhais tau hais tias nws muaj tsawg dua cov kev txwv PDE, txawm hais tias cov tuam txhab tseem yuav tsum ua qhov kev soj ntsuam tsim nyog rau cov khoom seem NEP hauv cov khoom siv tshuaj. Tiv tauj peb kom muaj residual solvent analytical reference standard.
4. Petrochemical & Refining - Aromatic Extraction & Lube Roj Refining
Hauv kev ua haujlwm petrochemical, NEP ua haujlwm ua ib qhonpaum extraction hnyavrau kev sib cais cov muaj ntxhiab hydrocarbons (benzene, toluene, xylenes) los ntawm cov dej sib xyaw hydrocarbon thiab rau dewaxing thiab refining lubricating puag roj. Nws me ntsis hydrophobicity vs NMP - conferred los ntawm ethyl pab pawg neeg - muab nws txhim khu kev xaiv rau aromatic compounds tshaj aliphatics nyob rau hauv cov kua-kua extraction systems, muaj peev xwm txo tau cov theem extraction thiab txhim kho aromatic purity. Nws cov thermal stability siab ua rau nws rov qab los ntawm distillation thiab rov siv tau thoob plaws ntau lub voj voog rho tawm.
Kev ruaj ntseg, ruaj khov & kev nyab xeeb tuav
Kev Cia Siab
Khw hauv atxias (5–30 degree), qhuav, zoo- qhov cuadeb ntawm lub hnub ci ncaj qha thiab qhov hluav taws kub. Siv cov hlau kaw lossis HDPE nruas. NEP qib hluav taws xob yuav tsum tau khaws cia hauv nitrogen- kaw HDPE nruas kom tiv thaiv kom tsis txhob ya raws (dej cov ntsiab lus tsawg dua lossis sib npaug li 0.05% yuav tsum tau khaws cia). Khaws kom deb ntawm cov kua qaub uas muaj zog, oxidizers, thiab khoom noj khoom haus / tshuaj. Stack max 3 txheej (200 kg nruas). Txee lub neej: 12 lub hlis nyob rau hauv ntim thawj ntim.
Kev ruaj ntseg
Nyob ruaj khov nyob rau hauv ib txwm cia tej yam kev mob. Cov pab pawg ethyl ntawm nitrogen muab NEP qis dua hygroscopicity dua NMP, lub ntsiab lus kaw cov nruas tuav cov ntsiab lus dej ntau ntxiv nyob rau lub sijhawm khaws cia - qhov ua tau zoo hauv cov huab cua ntub thiab rau cov ntawv siv roj teeb nrog cov dej noo nruj.
Kev Tswj Xyuas Kev Nyab Xeeb (SDS Summary)
GHS kev faib tawm:Daim tawv nqaij Irritation qeb 2, Qhov muag Irritation qeb 2. Combustible kua (flash point 98℃).Tsis muaj Repr. 1B, tsis muaj npe SVHC- txhim kho kev ua haujlwm txaus ntshai profile vs NMP.
Yuav tsum muaj PPE:Nitrile hnab looj tes, looj tsom iav dub, tiv thaiv khaub ncaws. Organic vapor respirator rau kev ua haujlwm tsim huab cua lossis vapor saum OEL. Rau cov khoom siv hluav taws xob- qib tuav, siv chav huv huv- siv tau PPE los tiv thaiv cov kab mob thiab cov hlau.
Spill response:Absorb nrog xuab zeb los yog activated carbon. Sau rau hauv cov thawv ntim khoom kaw. NEP yog miscible nrog dej - cov nchuav loj tuaj yeem raug diluted thiab xa mus rau kev kho dej khib nyiab. Tsis txhob tso tawm rau cov dej tsis kho.
Tag Nrho SDS/MSDS muaj nyob rau ntawm kev thov los ntawm sales@sinolookchem.com.
NEP Nqe - N-Ethyl-2-pyrrolidinone Nqe 2025
NEP yog tsim los ntawm -butyrolactone thiab ethylamine feedstocks. Cov ntim ntau lawm tsawg dua NMP, yog li NEP nqa tus nqi them tus nqi - tab sis rau EU- tswj kev ua haujlwm, tus nqi REACH tso cai ua raws li NMP nquag tshaj NEP tus nqi. Tus nqi siv Tuam Tshoj- keeb kwm ex- ua haujlwm (2025):
200 kg nruas / IBC / tank tsheb
Ntau dua lossis sib npaug li 99.5%, hlau Tsawg dua lossis sib npaug rau 1 ppb, N₂- kaw
Cov lus nug nquag nug txog NEP Solvent
Q: Puas yog NEP qhov poob tiag tiag - hloov NMP? Dab tsi yog qhov txawv?
NEP (N-ethyl{2}}2-pyrrolidinone) thiab NMP (N-methyl-2-pyrrolidinone) sib koom ua ke tsib lub nplhaib pyrrolidinone zoo tib yam - lawv txawv tsuas yog hauv N-substituent (). ethyl vs methyl. Cov qauv zoo sib xws no txhais tau tias NEP zoo sib xws NMP hauv kev daws teeb meem rau feem ntau cov polymers, resins, thiab inorganic ntsev. Cov tswv yim sib txawv: NEP muaj qhov kub siab me ntsis (210-212℃vs 202 degree), qis polarity qis (ε ≈ 29 vs 32.2), thiab qis hygroscopicity. Rau feem ntau cov txheej txheem, tu, thiab ua cov ntaub ntawv polymer, 1: 1 ntim hloov ua haujlwm ncaj qha. Rau PVDF roj teeb binder systems, me me viscosity optimization tej zaum yuav xav tau. Qhov kev txiav txim siab sib txawv yog kev tswj hwm: NEP tsis muaj Repr. 1B / SVHC kev faib tawm, tsis tas yuav muaj kev tso cai REACH rau EU kev lag luam siv.
Q: Tus lej CAS rau N-ethyl-2-pyrrolidinone (NEP) yog dab tsi?
CAS nrN-ethyl-2-pyrrolidinone (NEP)yog2687-91-4. Nws kuj tau sau npe hauv EINECS li 220-250-6. Synonyms sib koom CAS tus lej suav nrog: 1-ethyl-2-pyrrolidinone, 1-ethyl-2-pyrrolidone, N-ethyl pyrrolidone, ethylpyrrolidone, thiab ethylpyrrolidinone. Ib txwm siv CAS 2687-91-4 hauv kev xaj xaj thiab kev lis kev cai tshaj tawm kom paub qhov txawv NEP los ntawm NMP (CAS 872-50-4) thiab lwm yam pyrrolidone variants.
Q: NEP txoj cai REACH tam sim no yog dab tsi? Puas yog nws nyob hauv SVHC Cov Npe Npe?
Raws li 2025,NEP (CAS 2687-91-4) tsis nyob rau hauv REACH SVHC Cov Npe Npe thiab tsis nyob hauv Daim Ntawv Tso Cai (Annex XIV). Nws tsis muaj Repr. 1B (cov tshuaj lom neeg yug menyuam) kev faib tawm raws li CLP Txoj Cai - sib piv rau NMP, uas yog ib qho khoom siv Annex XIV uas xav tau kev tso cai rau tag nrho EU kev lag luam siv. Qhov no txhais tau hais tias EU cov tuam txhab tsim khoom thiab cov txheej txheem tuaj yeem siv NEP dawb yam tsis tas yuav xa daim ntawv tso cai REACH, them cov nqi thov, lossis tswj xyuas kev saib xyuas thiab tshaj tawm cov luag haujlwm uas xav tau rau kev siv NMP. Cov neeg yuav khoom yuav tsum txheeb xyuas qhov xwm txheej ECHA REACH tam sim no ua ntej ua tiav cov lus qhia tshwj xeeb, vim tias cov kev faib tawm yuav raug tshuaj xyuas ib ntus.
Q: Puas tuaj yeem NEP yaj PVDF rau lithium roj teeb cathode slurry?
Yog - NEP dissolves PVDF binder ntawm qhov sib piv nrog rau NMP, ua kom tsim cov cathode slurries rau LFP, NMC, thiab NCA roj teeb electrodes. Nyob rau hauv kev xyaum, PVDF dissolution nyob rau hauv NEP yuav xav tau me ntsis ntev sib tov lub sij hawm los yog marginally elevated kub vs NMP, vim yog me ntsis dielectric qhov tsis tu ncua ntawm NEP. Slurry khoom cov ntsiab lus, viscosity, thiab coating cwj pwm yog feem ntau hloov mus nrog me me hloov. Electronic-qib NEP (dej tsawg dua lossis sib npaug li 0.05%, cov hlau tsawg dua lossis sib npaug li 1 ppb) raug pom zoo rau cov ntawv thov roj teeb kom haum rau cov qauv dej noo thiab cov kab mob sib kis uas yuav tsum tau ua rau siab - zoo electrode manufacturing. Peb muab cov ntawv sau ua haujlwm rau PVDF / NEP formulation optimization ntawm kev thov.
Q: NEP ua li cas?
NEP yog tsim los ntawm lubcov tshuaj tiv thaiv ntawm -butyrolactone (GBL) nrog ethylamine: -C₄H₆O₂ + C₂H₅NH₂ → NEP + H₂O. Cov tshuaj tiv thaiv tshwm sim ntawm qhov kub thiab txias siab, ua rau cyclic amide (lactam) nyob rau hauv high yield. Cov khoom nyoos yog purified los ntawm multi-theem fractional distillation kom ua tiav ntau dua lossis sib npaug rau 99.0% (kev lag luam) lossis Ntau dua lossis sib npaug rau 99.5% (qib hluav taws xob) purity. Rau qib hluav taws xob, ntxiv ion- pauv kev kho thiab lim tshem tawm cov kab hlau kom tsawg dua lossis sib npaug li 1 ppb ib ion. GBL feedstock tus nqi thiab ntau lawm scale (me dua NMP's maleic anhydride txoj kev) yog thawj tsav tsheb ntawm NEP tus nqi nqi tshaj NMP.
Kev Lag Luam Kev Cai & Cov Qauv Txheej Txheem
Tshawb nrhiav CAS 2687-91-4 kom paub meej qhov xwm txheej SVHC tam sim no. Kev tswj hwm kev faib tawm yog hloov kho ob xyoos ib zaug - txheeb xyuas ua ntej ua tiav cov khoom tshwj xeeb.
NMP's Annex XIV tso cai daim ntawv teev npe nkag - qhia txog kev tswj hwm lub nra NEP hloov rau EU cov neeg siv khoom lag luam.
Physicochemical cov ntaub ntawv, spectral library, toxicology, thiab GHS kev faib tawm rau NEP.
Siv purity specifications thiab analytical data rau N-ethyl-2-pyrrolidinone.
Tau txais ib nqe lus · Cov Qauv · NMP Kev Pabcuam Hloov Pauv
Hloov mus rau NEP - Thov Tus Nqi & Kev Pabcuam
Peb muab N-Ethyl-2-pyrrolidinone (NEP, CAS 2687-91-4) hauv Industrial (Ntau dua lossis sib npaug li 99.0%) thiab Qib Qib Hluav Taws Xob (Ntau dua lossis sib npaug rau 99.5%, cov hlau tsawg dua lossis sib npaug rau 1 ppb) nrog rau kev txhawb nqa kev sib tw thiab kev ua raws li NEP. Tiv tauj peb rau tus nqi nqe lus, qauv, lossis kev sib tham hauv daim ntawv thov.
Yam khoom: NMP (N-Methyl-2-pyrrolidinone) · DMF · DMAc · -Butyrolactone (GBL) · DMSO · Cyrene™ (Dihydrolevoglucosenone)
Cim npe nrov: 1-ethyl-2-pyrrolidinone, Tuam Tshoj 1-ethyl-2-pyrrolidinone manufacturers, lwm tus neeg
