38840

N,N-Dimethylacetamid

puriss. p.a., ≥99.5% (GC)

• Lineare Formel: CH₃CON(CH₃)₂
• CAS-Nummer: 127-19-5
• Molekulargewicht: 87.12
• Beilstein: 1737614
• EG-Nummer: 204-826-4
• MDL-Nummer: MFCD00008686
• UNSPSC-Code: 12352111
• PubChem Substanz-ID: 329755790
• NACRES: NA.21

Eigenschaften

• Dampfdichte: 3 (vs air)
• Dampfdruck: 2 mmHg ( 25 °C); 4 mmHg ( 38 °C)
• Qualität: puriss. p.a.
• Assay: ≥99.5% (GC)
• Form: liquid
• Selbstzündungstemp.: 914 °F
• Expl.-Gr.: 1.8 %, 100 °F; 11.5 %, 160 °F
• Verunreinigungen: ≤0.1% water
• Abdampfrückstand: ≤0.005%
• Brechungsindex: n20/D 1.437 (lit.); n20/D 1.437
• pH-Wert: 4 (20 °C, 200 g/L)
• bp: 164.5-166 °C (lit.)
• mp (Schmelzpunkt): −20 °C (lit.)
• Dichte: 0.937 g/mL at 25 °C (lit.)
• Kationenspuren: Al: ≤0.5 mg/kg; Ba: ≤0.1 mg/kg; Bi: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.02 mg/kg; Cu: ≤0.02 mg/kg; Fe: ≤0.1 mg/kg; K: ≤0.5 mg/kg; Li: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Mo: ≤0.1 mg/kg; Na: ≤0.5 mg/kg; Ni: ≤0.02 mg/kg; Pb: ≤0.1 mg/kg; Sr: ≤0.1 mg/kg; Zn: ≤0.1 mg/kg
• SMILES String: CN(C)C(C)=O
• InChI: 1S/C4H9NO/c1-4(6)5(2)3/h1-3H3
• InChIKey: FXHOOIRPVKKKFG-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

N,N-Dimethylacetamide (DMAc) is widely used to compose the solvent mixtures for cellulose. Static and dynamic light scattering studies of the cellulose dissolved in varying concentrations of DMAc/LiCl mixtures have been reported.

Anwendung

N,N-Dimethylacetamide (DMAc) may be used to compose the solvent system along with lithium chloride (LiCl) for the dissolution of commercial rayon grade cellulose. DMAc/LiCl solvent mixtures have been used for the preparation of chitin, cellulose and polyimide fibers and films.

Sicherheitshinweise

• Piktogramme: GHS08,GHS07
• Signalwort: Danger
• H-Sätze: H312 + H332,H319,H360D
• P-Sätze: P202 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B
• Lagerklassenschlüssel: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 2
• Flammpunkt (°F): 147.2 °F - closed cup
• Flammpunkt (°C): 64 °C - closed cup