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Dmf - China

price: contact company for price

Key Words: DMF, dimethylformide, N, N-dimethylformide, DMFA HS code:

2924191000 CAS No.: 68-12-2 Molecular Formular: C3H7NO Molecular

Weight: 73.09

Property:

Due to the contribution of the two possible resonance structures of an amide, the bond order of the carbonyl C=O bond is reduced, while that of the carbon-nitrogen bond is increased. Thus the infrared spectrum of DMF shows a lower C=O stretching frequency at 1675 cm than an unsubstituted C=O bond. Also, because of the partial double bond character, the rotation about the C-N axis is slow at room temperature, making the two methyl groups inequivalent on the NMR time scale, giving rise to two singlets of 3 protons each at δ 2.97 and 2.88, instead of one singlet of 6 protons in the proton NMR spectrum.

Usage:

The primary use of dimethylformamide is as a solvent with low evaporation rate. Dimethylformamide is used in the production of acrylic fibers and plastics. It is also used as a solvent in peptide coupling for pharmaceuticals, in the development and production of pesticides, and in the manufacture of adhesives, synthetic leathers, fibers, films, and surface coatings.

It is used as a reagent in the Bouveault aldehyde synthesis and in the Vilsmeier-Haack reaction, another useful method of forming aldehydes.

DMF penetrates most plastics and makes them swell. It therefore frequently occurs as a component of paint strippers.

DMF is very effective at separating and suspending carbon nanotubes, and is recommended by the NIST for use in Near infrared spectroscopy of such. It is also used in the manufacturing of solvent dyes as an important raw material. It is consumed during reaction.

Package and Storage:

Reactions including the use of sodium hydride in DMF as a solvent are somewhat hazardous; exothermic decompositions have been reported at temperatures as low as 26 °C. On a laboratory scale any thermal runaway is (usually) quickly noticed and brought under control with an ice bath and this remains a popular combination of reagents. On a pilot plant scale, on the other hand, several accidents have been reported.

More information pls contract me by : sunny(at)iro-taihe(dot)com

Dmf

Feel free to contact us with all your questions


Company Contact:


  • Phone: 8653285026682

  • Address: NO.10 HongKong Middle Rd, Qingdao, China

  • Email: Email


Published date: September 6, 2012 -

  • Business Description: Abundant professional knowledge, long term production & business experiences, and well equipped facilities enable us deserved to name us CHEM. Continuous observation to our promise, deep understanding to the customer needs and the philosophy to pursue win win signifies us as credible and supportive as the "LAND"..

    Chemland Group Inc. is the top chemical supplier in China with the core business of water treatment chemicals, active in all R&D, quality control (QC), marketing and technical&delivery support. With

    Vision: To be the one stop procurement solution for water treatment and relatative chemicals all over the world.

    Advantages:

    Complete and wide range of water treatment chemicals, especially in Organophosphonate Chemicals (ATMP, HEDP, PBTCA etc with leading crystal products output) and Polymer Dispersants (AA/AMPS, MA/AA, 3100 etc).

    Consistent and superior quality from stringent QC system and modern test instrument, such as Gel Chromatograph in molecular weight distribution.

    Timely delivery based on the abundant production capacity, stable raw material supply, experienced teams in production, logistic and management, and the global distribution network.

    New and customerized product supply from the well equiped systhesis and application laboratory staffed with professional and passionated R&D team.

    Chemland has been acquiring, investing or establishing the tight relation with many other plants and companies which have the same business philosophy, and established Qingdao Iro Taihe International Trade Co., Ltd. specialied for all relevant businesses. Through integrating different resources and spreading our advantages into these corporations, Chemland expects to offer maximum support to the customers. Now, the significant progress and strengths are also gained in the following fields:

    Water Treatment Chemicals
    Biocides and Algicide
    Chelating Agents
    Oil Drilling Chemicals
    Textile Chemicals
    Food&Feed Additives

    Chemicals industry needs specialised and competitive suppliers with diversified products and customerised service. We are striving!

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