Automatic determination of benzene crystallization point
The determination of the crystallization point of benzene is a characteristic index of the purity test of general industrial products.
In the low temperature cooling process, the pure liquid may appear too cold state, namely when at or below the temperature of crystallization point, the material is still in a liquid state without precipitation crystallization to coagulation state, the main reason is due to the static in the liquid, no enough seed formation, although reach even below the crystallization temperature at this moment, but not in crystallization.
When there is proper mixing in the system, with the cooling process, there are enough seeds to promote the formation of crystallization.
Therefore, when determining the crystallization point of benzene, it is clearly stated during the operation that the cooling operation is carried out and the liquid of the benzene sample is properly stirred.
If there is no agitation, the measured value will be too low, and there may be abnormal temperature increases during the measurement process.
SH406B automatic benzene crystallization point tester for standard GB/T3145-1982 benzene crystallization point determination, GB/T 3069.2-2005 naphthalene crystallization point determination, GB/T 3710-2009 industrial phenol, phenol crystallization point determination,
Determination of crystallizing point of organic chemical products and chemical reagents
Plasticizers -- Determination of crystallinity point
(benzene crystallization point meter, phenol crystallization point meter, phenol crystallization point meter, freezing point meter, plasticizer crystallization point meter)
Equipment features: the embedded system design, the whole process of the test automatic detection;
Adopt imported PT100 sensor and imported temperature control system.
Color touch screen;
The test results can be stored;
You can view historical data;
Printing results on the instrument, mechanical automatic mixing, experimental results can be exported through the U disk, stored in the computer can be compared for many times.
Instruments for the experiment
1.SH406B benzene crystallization point automatic tester, Shandong Shengtai Instrument Co., Ltd.
2. Comply with GB/T3145.