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1. The beaker is made of high-quality 3.3 borosilicate glass (GG-17), which is laboratory-grade glassware.
2. Product features: resistant to high temperature, acid and alkali resistant, with good stability.
3. The beaker is suitable for mixing heated liquids, and the scale is clear and easy to read.
The physical properties are as follows:
|Silicon content||More than 80%|
|Strain temperature||520 ℃|
|Annealing temperature||560 ℃|
|Softening temperature||820 ℃|
|Light transmittance (2 mm)||92 %|
|Elastic Modulus||76KNmm - 2|
|tensile strength||40- 120Nmm - 2|
|Glass stress optical constant||3.8 * 10-6 square millimeters / no|
|Processing temperature (104dpas)||1220 ℃|
|Linear expansion coefficient (20-300 °C)||3.3 * 10-6 K - 1|
|Density (20 °C)||2.23gcm - 1|
|Specific heat||0.9jg - 1K - 1|
|Thermal conductivity||1.2Wm - 1K - 1|
|Water resistance (International Organization for Standardization 719)||Level 1|
|Acid resistance (International Organization for Standardization 195)||Level 1|
|Alkali resistance (International Organization for Standardization 695)||Level 2|