|
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
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