Naphthalene Sulfonate has Many Uses
Naphthalene
Sulfonate or FDN-A is a naphthalene-based high concentrate superplasticizer and
high range water reducer. It is also known as Naphthalene Sulfonate
Formaldehyde Condensate (NSF), SNF, and PNS, etc.
Naphthalene
Sulfonate is basically made of naphthalene with a lower amount of
sulfuric acid, formalin, and alkali. It goes through a set of a critical
chemical process starting from sulphuration. After the initial process,
hydrolyzation, condensation and neutralization reaction are performed to shape
the final product. It does not contain any chloride.
FDN-A
is basically used for making flowable and steam-curing concrete. It has the
capacity to bear a very low temperature such as 0 degree Celsius in its working
environment.
There
are certain advantages for using Naphthalene
Sulfonate or FDN-A which are listed as follows:
• It has a high
water-reducing rate that can be over 25%. Water penetration and segregation can
also be reduced to a considerable level and it increases concrete fluidity
effectively.
• Concrete stress can
be reduced to a great extent by this product.
• High applicability
and compatibility are other key features that enable it to be used with a
different variety of cement or other admixture. It can be used for a
supplementary and catalytic purpose in different admixture.
• It takes less than
an hour for the setting.
• It contains no
explosive or flammable or toxic material that makes it safer.
• It can either be
used directly or as a solution with water with the utmost ease.
• It contains a low
amount of sodium sulfonate content.
Several precautions to be taken
while handling Naphthalene Sulfonate:
• While being
transferred or moved the packages should be kept safe from sharp-ended objects
to prevent any leakage.
• Any leakage may
cause contamination by high humidity or moisture. In such cases, it can be
prepared in prescribed ways without losing its original properties.
• It should be kept in
a well-ventilated place and dry.
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