Melamine is used
in the form of melamine formaldehyde in chemical industries.
Melamine should be absolute white with suitable sizing and without
any turbidity .
Purity , solubility in formaldehyde and PH
are determining Factors of melamine quality . One of the most
important quality parameters of melamine is its reaction with
formaldehyde in cold water, and its reaction duration is measured in
minutes . This test (hydrophobe test ) is the simulation of what
occurs in downstream industries on melamine .
Ammonium
sulphate quality control test
In addition to the agricultural usage of
Ammonium sulphate , due to the active ions of sulphate and Ammonium
, it can also be used in the production of Ammonium chloride and
other substances containing Ammonia . Because of fertilizer usage of
A.s. its nitrogen (N%)and free acid (H2SO4)
content should be measured and controlled.
Turbidity , color and particle tests can also
be done at customer requirements and the result can be submitted .
