N, N-Dimethylacetamide_DMAC 127-19-5
Alaye ọja
| Orukọ ọja | N, N-Dimethylacetamide/DMAC |
| CAS | 127-19-5 |
| MF | C4H9NO |
| MW | 87.12 |
| iwuwo | 0,937 g / milimita |
| Ojuami yo | -20°C |
| Oju omi farabale | 164,5-166°C |
| iwuwo | 0.937 g/ml ni 25°C (tan.) |
| Òru Òru | 3.89 (la afẹfẹ) |
| Ipa oru | 40 mm Hg (19.4°C) |
| Atọka itọka | n20/D 1.439(tan.) |
| oju filaṣi | 158 °F |
| Awọn ipo ipamọ | Fipamọ ni isalẹ + 30 ° C. |
| Solubility | > 1000g/l tiotuka |
| olùsọdipúpọ acidity | (pKa) -0.41 ± 0.70 (Asọtẹlẹ) |
| Fọọmu | Omi |
| Àwọ̀ | Laini awọ si ofeefee |
| Ojulumo polarity | 6.3 |
| iye PH | 4 (200g/l, H2O, 20℃) |
| Òórùn | (Òrùn) Òórùn amonia tí ó rẹ̀wẹ̀sì |
| Odón ala | (Odor ala) 0.76ppm |
| Omi solubility | miscible |
| Package | 1 L/igo, 25 L / ilu, 200 L / ilu |
| Ohun ini | O le wa ni idapo pelu omi, oti, ether, ester, benzene, chloroform, ati awọn agbo ogun oorun. |
Awọn itumọ ọrọ sisọ
Acetic acid dimethylacetamide; N, N-Dimethylacetamide.
Išẹ
DMAC ni a lo ni akọkọ bi epo fun awọn okun sintetiki (acrylonitrile) ati yiyi polyurethane ati awọn resin polyamide sintetiki, ati pe o tun lo bi epo distillation ti o yọkuro fun yiya sọtọ styrene lati awọn ipin C8, ati pe o lo pupọ ni awọn fiimu polima, awọn aṣọ ati awọn oogun elegbogi, ati bẹbẹ lọ. Ni lọwọlọwọ, o jẹ lilo pupọ ni oogun ati ipakokoropaeku lati ṣajọpọ awọn apakokoro ati awọn ipakokoropaeku. O tun le ṣee lo bi ayase fun awọn lenu, ohun electrolytic epo, a kun scavenger, ati awọn kan orisirisi ti crystalline epo adducts ati awọn eka.
Apejuwe
N, N-Dimethylacetamide, ti a tun mọ ni acetyldimethylamine, acetyldimethylamine, tabi DMAC fun kukuru, jẹ iyọkuro pola ti o ga julọ ti aprotic pẹlu õrùn amonia diẹ, solubility lagbara, ati ọpọlọpọ awọn nkan ti o le yanju. O jẹ miscible ni ibigbogbo pẹlu omi, awọn agbo ogun aromatic, esters, ketones, alcohols, ethers, benzene ati chloroform, ati bẹbẹ lọ, ati pe o le mu awọn ohun elo agbo-ara ṣiṣẹ, nitorinaa o jẹ lilo pupọ bi epo ati ayase. Ni awọn ofin ti epo, bi epo ti o ni aaye farabale giga, aaye filasi giga, iduroṣinṣin gbona giga ati iduroṣinṣin kemikali, o le ṣee lo fun epo iyipo polyacrylonitrile, resini sintetiki ati resini adayeba, vinyl formate, vinyl pyridine ati awọn miiran copolymers ati Aromatic carboxylic acid epo; ni awọn ofin ti ayase, o le ṣee lo ninu awọn ilana ti alapapo urea lati gbe awọn cyanuric acid, awọn lenu ti halogenated alkyl ati irin cyanide lati gbe awọn nitrile, awọn lenu ti soda acetylene ati halogenated alkyl lati gbe awọn alkyl alkyne, ati awọn lenu ti Organic halide ati cyanate lati gbe awọn isocyanate. N, N-dimethylacetamide tun le ṣee lo bi epo fun epo electrolysis ati olutọpa aworan, yiyọ awọ, ohun elo aise iṣelọpọ Organic, ipakokoropaeku ati ohun elo aise elegbogi. Iyọkuro distillation ayokuro fun yiya sọtọ styrene lati ida C8, ati bẹbẹ lọ.
