Khoom Description
Khoom npe: Dimethyl acetylenedicarboxylate
CAS: 762-42-5 Nr
PIB: 212-098-4
Melting point: -18 ° C
Kub taw tes: 95-98℃/ 19 mmHg (lit.)
Ceev: 1.156 g / mL ntawm 25℃(lit.)
Refractive index: n20/D 1.447 (lit.)
Fp: 187℃F
Specification
| Cov khoom | Specifications |
| Qhov tshwm sim | Tsis muaj xim thiab pob tshab kua |
| Purity | 99% |
| Cia temp. | Khaws nyob rau hauv qhov chaw tsaus, kaw hauv qhuav, Chav Kub |
| Pob | 1 kg / hnab, 20 kg / nruas, 25 kg / nruas |
Daim ntawv thov
1. Dimethyl acetylenedicarboxylate yog cov khoom siv hluav taws xob muaj cai - tsis muaj alkyne lub tsev thaiv siv dav hauv heterocyclic synthesis los tsim fused - nplhaib tshuab los ntawm cycloaddition cov tshuaj tiv thaiv .
2. Dimethyl acetylenedicarboxylate CAS 762-42-5 ua hauj lwm pab raws li ib tug ntau yam dienophile nyob rau hauv Diels-Alder cov tshuaj tiv thaiv thiab ib tug Michael txais rau ntau yam nucleophiles, ua kom muaj txiaj ntsig synthesis ntawm complex molecules.
3. Dimethyl acetylenedicarboxylate yog siv rau hauv kev tsim kho tshuaj los ua ke cov tshuaj intermediates, hauv polymer chemistry rau cov ntaub ntawv tshwj xeeb, thiab hauv agrochemical formulations.
Cia thiab ceev faj
1. Khaws Dimethyl acetylenedicarboxylate rau hauv lub thawv kaw nruj nreem nyob rau hauv inert gas (argon filling) ntawm 0-8℃lossis -20℃kom ruaj khov mus ntev.
2. Khaws Dimethyl acetylenedicarboxylate CAS 762-42-5 nruj me ntsis kom deb ntawm tshav kub, sparks, qhib nplaim taws, thiab muaj zog oxidizing tus neeg sawv cev los tiv thaiv kev puas tsuaj decomposition.
3. Tuav Dimethyl acetylenedicarboxylate siv cov cuab yeej tiv thaiv tus kheej tsim nyog nrog rau cov hnab looj tes nitrile, nruj kom haum cov tsom iav tiv thaiv lub ntsej muag, thiab hauv lub hood kom tsis txhob ua pa tawm.
Kev kub ceev teb rau cov dej xau
1. Tshem tawm ntawm qhov chaw nchuav, tshem tawm tag nrho cov khoom siv hluav taws xob, thiab muaj cov kua Dimethyl acetylenedicarboxylate siv cov khoom siv tsis zoo xws li xuab zeb, tiv thaiv kev nkag mus rau hauv cov dej ntws los yog cov dej ntws.
2. Sau absorbed Dimethyl acetylenedicarboxylate CAS 762-42-5 siv cov cuab yeej uas tsis muaj hluav taws kub hnyiab rau hauv cov thawv kaw, sau cov thawv tiv thaiv corrosion rau pov tseg raws li cov khoom siv phom sij.
3. Cov neeg ua hauj lwm tu Dimethyl acetylenedicarboxylate spills yuav tsum hnav cov khoom tiv thaiv tag nrho nrog rau tus kheej -cov cuab yeej ua pa, vim cov vapors tuaj yeem sib sau ua kom tawg ntau.
Cov ntaub ntawv kev nyab xeeb
1. Dimethyl acetylenedicarboxylate yog corrosive (GHS05, Danger), ua rau tawv nqaij kub hnyiab, mob qhov muag loj (H314/H318), thiab muaj teeb meem yog nqos tau (H302, LD50 nas: 550 mg/kg).
2. Dimethyl acetylenedicarboxylate CAS 762-42-5 tuaj yeem ua rau cov tawv nqaij ua xua (H317) thiab yog cov kua roj combustible (H227) nrog lub teeb nyem ntawm 86 degree.
3. Kev sib xyaw ntawm Dimethyl acetylenedicarboxylate ua rau cov pa phem xws li carbon oxides, thiab Dimethyl acetylenedicarboxylate raug cais rau kev thauj mus los ua kua corrosive (UN3265, Hazard Class 8, Packing Group II/III) nrog NFPA kev ntsuam xyuas ntawm 3 .
Yam khoom pom zoo
| Cov khoom | Khoom npe |
| 1 | Tom ntej: Dimethyl Malate CAS 617-55-0 |
| 2 | Dimethyl D{0}}malate CAS 70681-41-3 |
| 3 | Diethyl L{0}}malate CAS 691-84-9 |
| 4 | Diethyl D{0}}Malate CAS 7554-28-1 |
| 5 | 5-Chlorovaleronitrile CAS 6280-87-1 |
| 6 | 5-Methylindole CAS 614-96-0 |
| 7 | 4-Hydroxybenzophenone CAS 1137-42-4 |
| 8 | 5-Bromosalicylic Acid CAS 89-55-4 |
| 9 | 5-Chlorovaleryl Chloride CAS 1575-61-7 |
| 10 | Yog tias koj xav tau cov ntaub ntawv ntxiv, txais tos hu rau peb txhua lub sijhawm.WhatsApp: +86 18317156592
|
Ntim
Kev thauj mus los & Kev Them Nyiaj
Txog Kev Thauj Mus Los
Raws li cov kev xav tau ntawm peb cov neeg siv khoom, peb tuaj yeem muab ntau yam kev xaiv kev thauj mus los.
Rau kev txiav txim me me, peb muab kev xa khoom huab cua lossis kev pabcuam xa khoom thoob ntiaj teb xws li FedEx, DHL, TNT, EMS, thiab ntau lwm yam tshwj xeeb ntawm kev thauj mus los thoob ntiaj teb.
Peb tuaj yeem thauj los ntawm hiav txwv mus rau ib qho chaw nres nkoj rau qhov loj dua.
Tsis tas li ntawd, peb tuaj yeem muab cov kev pabcuam tshwj xeeb raws li cov kev xav tau ntawm peb cov neeg siv khoom thiab cov yam ntxwv ntawm lawv cov khoom.
* Peb tuaj yeem muab ntau yam kev xaiv them nyiaj rau peb cov neeg siv khoom.
* Thaum cov nyiaj qis qis, cov neeg siv khoom feem ntau them nrog PayPal, Western Union, Alibaba, thiab lwm yam kev pabcuam zoo sib xws.
* Thaum cov lej tseem ceeb, cov neeg siv khoom feem ntau them nrog T / T, L / C thaum pom, Alibaba, thiab lwm yam.
* Tsis tas li ntawd, ntau tus neeg siv khoom yuav siv Alipay lossis WeChat Them kom them nyiaj.
FAQ
1
Kuv puas tuaj yeem tau txais ib qho qauv ntawm koj?
Re: Yog lawm, peb xav muab cov qauv rau koj raws li koj xav tau.
2
Koj tus MOQ yog dab tsi?
Re: Feem ntau peb cov MOQ yog 1 kg, tab sis qee zaum nws kuj hloov tau thiab nyob ntawm cov khoom sib txawv.
3
Ntev npaum li cas kuv tuaj yeem tau txais kuv cov khoom tom qab them nyiaj?
Re: Yog tias xa los ntawm couriers lossis huab cua, nws feem ntau raug nqi 5-10 hnub.
Yog tias xa los ntawm hiav txwv, nws feem ntau raug nqi 3-40 hnub, uas nyob ntawm koj qhov chaw.
4
Koj puas muaj kev pabcuam tom qab- muag?
Re: Yog lawm, peb yuav qhia koj txog kev nce qib ntawm qhov kev txiav txim, xws li kev npaj cov khoom, kev tshaj tawm, kev thauj mus los ua raws- nce, kev pabcuam kev lis kev cai, kev qhia txuj ci, thiab lwm yam.
Tiv tauj peb
Cim npe nrov: Tuam Tshoj dimethyl acetylenedicarboxylate cas 762-42-5 manufacturers, lwm tus neeg, Hoobkas
