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N,N-Dimethylformamide(CAS#68-12-2)

Chemical Property:

Molecular Formula C3H7NO
Molar Mass 73.09
Density 0.944 g/mL (lit.)
Melting Point -61 °C (lit.)
Boling Point 153 °C (lit.)
Specific Rotation(α) 0.94 º
Flash Point 136°F
Water Solubility soluble
Solubility water: miscible
Vapor Presure 2.7 mm Hg ( 20 °C)
Vapor Density 2.5 (vs air)
Appearance liquid
Color APHA: ≤15
Odor Faint, ammonia-like odor detectable at 100 ppm
Exposure Limit NIOSH REL: TWA 10 ppm (30 mg/m3), IDLH 500 ppm; OSHA PEL: TWA 10ppm; ACGIH TLV: TWA 10 ppm (adopted).
Maximum wavelength(λmax) λ: 270 nm Amax: 1.00λ: 275 nm Amax: 0.30λ: 295 nm Amax: 0.10λ: 310 nm Amax: 0.05λ: 340-400 nm Amax:
Merck 14,3243
BRN 605365
pKa -0.44±0.70(Predicted)
PH 7 (200g/l, H2O, 20℃)
Storage Condition Store at +5°C to +30°C.
Sensitive Hygroscopic
Explosive Limit 2.2-16%(V)
Refractive Index n20/D 1.430(lit.)
Physical and Chemical Properties Density 0.945
melting point -61°C
boiling point 153°C
refractive index 1.429-1.432
flash point 58°C
specific rotation 0.94 °
water-soluble solution
Use Used as analytical reagents and ethylene resin, acetylene solvent

Product Detail

Product Tags

Hazard Symbols T – Toxic
Risk Codes R61 – May cause harm to the unborn child
R20/21 – Harmful by inhalation and in contact with skin.
R36 – Irritating to the eyes
Safety Description S53 – Avoid exposure – obtain special instructions before use.
S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs UN 2265 3/PG 3
WGK Germany 1
RTECS LQ2100000
FLUKA BRAND F CODES 3-10
TSCA Yes
HS Code 29241990
Hazard Note Toxic
Hazard Class 3
Packing Group III
Toxicity LD50 in mice, rats (ml/kg): 6.8, 7.6 orally; 6.2, 4.7 i.p. (Bartsch)

 

Introduction

N,N-dimethylformamide, or DMF for short, is a colorless liquid compound. The following is an introduction to the properties, uses, preparation methods and safety information of DMF:Quality:1. It has good thermal and chemical stability, and has good stability at room temperature.2. DMF has certain toxicity and irritation, and long-term contact and inhalation should be avoided.Use:DMF is an important industrial solvent widely used in industries such as synthetic fibers, plastics, films, textiles, paints, and coatings.Preparation method:There are several methods for preparing DMF, the most commonly used of which is DMF obtained by transesterification of methylamine and ethyl formate.Methylamine Ethyl formate -> DMF methanolSafety Information:1. DMF is an irritating substance that may cause inflammation and irritation after contact with the eyes and skin.2. It will be quickly absorbed through the skin, and prolonged contact and inhalation should be avoided.3. When using DMF, wear protective glasses, gloves and protective clothing to ensure good ventilation.4. If accidental contact or inhalation occurs, the affected area should be cleaned immediately, and if there is discomfort, seek medical attention immediately.


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