Applications of the SITA science line t60
The SITA science line t60 is a mobile online tensiometer which measures the whole
dynamic range of measuring tasks of surface tension. The tensiometer works by
measuring bubble pressure. This is done by pumping air through a capillary
into the liquid to be analyzed. The pressure within the bubble is proportional
to the surface tension. Using a very short bubble lifetime (measurements made in a highly
dynamic range) high concentrations can be efficiently differentiated. In contrast,
with a long bubble lifetime one can take measurements in the semi-static range i.e. detect
low concentrations of surfactants.
SITA science line t60 is especially suitable for:
Laboratories of Surface Treatment:
setting and optimizing processes of metal cleaning, galvanic plating, wafer production
To reach the desired cleaning effect a certain amount of cleaner in the bath
must be optimized. During the process the cleaner is washed out of the bath,
so to keep up its cleaning ability it is important to build up a "washing
power reserve". This is normally done by dosing so much cleaner that its
concentration exceeds the concentration required. This causes unnecessary
costs, not only because more cleaner is needed. The excess cleaner is then
washed into the rinse water where it reduces the standing time of the rinse bath.
Also, the cleaning result of the bath is not stable which makes it difficult to
set-up a quality assurance system. The actual cleaning bath state can be monitored
easily in real time. This allows the operator to keep the cleaning bath characteristics
constant by dosing additional cleaner when the surface tension reaches a limit.
Different Effects of Cleaners
Research and Development:
detergent manufacturers, manufacturers and users of industrial laundries, janitorial
The surface active properties of surfactants are of outstanding importance
for the characterization and analysis of surfactants. Surfactants attached to
newly built surfaces cause the surface tension to decrease. The
SITA science line t60 tensiometer enables you to investigate various characteristics of
surfactants: - temperature characteristics and concentrations. The temperature
characteristics can be easily investigated because the temperature is simultaneously
recorded with every surface tension measurement. The concentration of a surfactant
has an impact on its dynamic characteristics. For instance, it is possible to research
how much surfactant needs to be dosed in order to result in a specific surface
tension at a given surface age. The required dynamic characteristics of the
surfactant are determined by its use. Different surfactants have different
behavior. Using the SITA science line t60 a surfactant can be researched for suitability
in a specific application.
Surface Tension Versus Bubble Lifetime at Various Concentrations of SDBS
Chemical Laboratory, Chemical Industry:
Quality control in surfactant chemistry, colloide chemistry, petroleum chemistry and many more...
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