Product: Young4us Glass Erlenmeyer Flask Set, (250 ml, 150 ml & 50 ml) Graduated Borosilicate Glass Erlenmeyer Flasks with Rubber Stoppers & Accurate Scales for Lab, Experiment, Chemistry, Science Studies etc
Brand: Young4us
Color: white
FEATURES
- Reusable
- Non-toxic
- Environmental-friendly
- Clear & accurate scales
- Low thermal expansion
- High chemical durability
- 3 rubber stoppers included
- High-quality borosilicate glass
- Different sizes for various uses

SPECIFICATION
Size
50 ml: 30 / 53 / 80 mm, 150 ml: 39 / 75 / 118 mm, 250 ml: 40 / 84 / 140 mm 
Material
Borosilicate Glass

What’s Borosilicate Glass?
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents.
Borosilicate glasses are known for having very low coefficients of thermal expansion (~3 × 10−6 K−1 at 20 °C), making them resistant to thermal shock,
more so than any other common glass.
Such glass is less subject to thermal stress and is commonly used for the construction of reagent bottles. 

NOTICE
1. Borosilicate glass will begin softening above 800 °C (~1500 °F). Any temperature below this should be a good operating temperature;
2. The temperature differential that borosilicate glass can withstand before fracturing is about 165 °C (329 °F).

PACKAGE
Young4us Glass Erlenmeyer Flasks x 3
Young4us Rubber Stoppers for Erlenmeyer Flask x 3
3 RUBBER STOPPERS INCLUDED: This set has 3 rubber stoppers for these 3 Erlenmeyer Flasks, which are sterile & can seal the liquid in the flasks perfectly for experiment.
ACCURATE SCALES: 3 Erlenmeyer Flasks in different sizes (250ml 150ml 50ml) have clear and accurate scales for you to measure liquid efficiently & accurately without any problem.
SIGNIFICANT FEATURES: Reusable, environmental friendly, will not shatter easily, easy to clean, high temperature resistance, for laboratory, chemistry, science experiment, liquid measuring, etc.
HIGH-END MATERIAL FOR LAB: These Borosilicate Glass Erlenmeyer Flasks have High chemical durability and low thermal expansion, which can withstand the temperature under 800 °C (~1500 °F).
PACKAGE & WORRY-FREE: Each set has 3 Erlenmeyer Flasks & 3 Rubber Stoppers. If you received defective items, please contact us via email for full refund or replacement. We would try our best to fix issues.

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