N,N-二甲基甲酰胺

Quality Level

100

vapor pressure

2.7 mmHg ( 20 °C)

assay

≥99.9% (GC)

form

liquid

autoignition temp.

833 °F

potency

3010 mg/kg LD₅₀, oral (Rat), 1500 mg/kg LD₅₀, skin (Rabbit)

expl. lim.

15.2 %

technique(s)

UV/Vis spectroscopy: suitable

impurities

≤0.0002 meq/g Acidity, ≤0.0002 meq/g Alkalinity, ≤0.02% Water

evapn. residue

≤0.0002%

color

APHA: ≤10

transmittance

270 nm, ≥25%, 275 nm, ≥60%, 290 nm, ≥80%, 300 nm, ≥90%, 330 nm, ≥98%

pH

7 (20 °C, 200 g/L in H₂O)

bp

153 °C (lit.)

mp

−61 °C (lit.)

transition temp

flash point 57.5 °C

density

0.944 g/mL (lit.)

UV absorption

λ: 270 nm A_max: ≤0.60, λ: 275 nm A_max: ≤0.22, λ: 290 nm A_max: ≤0.10, λ: 300 nm A_max: ≤0.05, λ: 330 nm A_max: ≤0.01

storage temp.

2-30°C