Rashtriya Chemicals & Fertilizers Ltd.
 
 
Dimethyl Formamide
 

Specifications:

Appearance

Clear, free of suspended matters

 

 

pH range 20% aqueous

 

 

6.5 to 9.0

Colour

APHA

max.

5

Methanol

ppm

max.

30

Water

% wt.

max.

0.08

Conductivity 20% aqueous

micro mhos

max.

15

Basicity as DMA

ppm

max.

10

Acidity as Formic acid

ppm

max.

5

DMAC impurity in DMF

ppm

max.

100

Purity

% wt.

min.

99.85

Density

gm/cc

at 20oC

0.946 to 0.949

Refractive index

 

at 20oC

1.4270 to 1.4285

 

Packing:

 

Stainless steel road tankers, 200 kg HM HDPE drums.

 

USES:

 

1.   DMF is widely used in the production and processing of polymers,

      Spinning solvent for polyacrylonitrile fibre and polyurethane fibre

      (spandex) and processing solvent for production of polyurethane artificial

      and synthetic leather.

2.   DMF is used for the separation and refining of acetylene from crude olefin

      gas.

3.   DMF is used in extracting butadiene from the C4 distillate obtained by

      naptha cracking, etc. and in separating isoprene from C5 distillate.

4.   Used as a solvent for recovery of H2S or SO2 or elimination of HCl, Cl,

      HBr etc. in hydrocarbons.

5.   DMF is also used in extracting solvent of aromatic hydrocarbons in

      petroleum refining.

6.   Gases like acetylene that are difficult to liquefy and handle safely can be

      stored and transported easily by dissolving them in DMF with a porous

      carrier solid (Ex. Calcium Silicate).

7.   DMF is widely used as a solvent for reaction. Generally acetylation,

      chlorination, sulfonation and various condensation and polymerization

      reactions are among those where DMF is used as a solvent.

8.   It is an excellent solvent for sulfonamide, vitamins, nitrofuran, quinoline,

      adrenaline, amine chlorides, etc. It is widely used in the production of

      pharmaceuticals as a reaction solvent, extracting solvent and crystallizing

      bath.

9.   DMF easily dissolves basic dye pigments nitroso pigments, phthalocyanine

      pigments, azo pigments and acid dye metal salts. It is also used as a

      solvent of colouring agent or an infiltrating ink for various films, wood,

      leather, resins etc. 

10.  DMF alone or as mixed with methylene chloride, is used as a remover of

       varnish or lacquers.

INDUSTRIES SERVED:

Pharmaceuticals, Dyestuff and Pigment, Polymers