I. Summary
The instrument is designed and made as per national standard of People’s Republic of China GB/T3069.2 Standard Test method for the crystallization temperature of naphthalene.It is used to determine the crystallization point of refined naphthalene which obtained via washing and rectification of naphthalene containing fraction of high temperature coal tar and the crystallization point of crude naphthalene.
II. Main technical features
1. This instrument is composed of a bath and a controller. Desktop structure. Simple design. Easy to operate.
2. Automatical electromagnetic stirring. Stirring frequency can be adjusted at will. Two samples can be stirred at a time.
3. It equips two sets of test vessels. It can do determination for two samples at a time. High efficiency.
III. Main technical specifications
1. Power supply： AC220±10%, 50Hz
2. Heating device： Electric heating，power 600W
3. Temperature control range： Room temperature～100℃
4. Temperature control accuracy： ±1℃
5. Stirring motor： Power 6W，rotation speed 1200RPM
6. Vibrometer： Electric vibration，amplitude 100mm, frequency （60～70）times/min
7. Ambient temperature： Room temperature～35℃
8. Relative humidity： ≤85%
