About this item

• Product Use: 2 neck round bottom flask used in chemical experiments for distillation, reflux, synthesis reactions, and other operations
• Specifications: 2 neck with 19/22 center and side standard taper outer joint capacity: 50, 100, 250, 500 ml
• Material & Durability: Made of borosilicate glass, it exhibits excellent corrosion resistance and a low coefficient of thermal expansion; stable operating temperature: 450°C
• Safety Instructions: Inspect the product for cracks before use; do not heat with open flames; instantaneous temperature changes must not exceed 140°C; the manufacturer is not liable for damages caused by improper operation
• Warranty: 1-year coverage period for your peace of mind, if received damaged, please let us know and we will solve it promptly
• ASIN: B0789F344R, B0789FYMF4, B0789H1XMZ, B0789FZFFD