1. Heat Resistance: The low coefficient of thermal expansion enables it to withstand considerable temperature variations, making it adaptable to heating or high-temperature experimental circumstances.
2. Chemical Resistance: Resistant to acids, alkalis, and hydrolysis, it can withstand the corrosion of various chemical reagents, guaranteeing the accuracy of experiments.
3. High Strength: With low density, high hardness, and substantial impact strength, it reduces the risk of damage and prolongs the service life.
4. Conical Flask Body: The wide base and narrow mouth ensure stable placement. The small mouth reduces evaporation and facilitates the installation of ground glass stoppers for sealing.
5. Sealing Arrangement: The ground glass stopper, along with the option of water sealing, effectively prevents the escape of volatile substances such as iodine and external interferences.
6. Clear Graduations: The fired graduation lines are durable, facilitating accurate measurement and observation of liquid volume.
7. Specialization: Primarily employed in iodometric determination, such as the determination of vitamin C, dissolved oxygen in water, sulfide content, etc., and also applicable to reactions involving other volatile substances.

Working Environment Conditions:
1. High-temperature Resistance: The maximum applicable temperature can reach 500°C; however, for experiments such as iodometric titration, it typically does not exceed 200°C.
2. Resistance to Temperature Differential: Capable of withstanding a sudden temperature differential of up to 200°C and adapting to certain temperature fluctuations.
3. Low-temperature Resistance: The minimum applicable temperature can reach -70°C, suitable for low-temperature environments.
4. Resistance to Acids and Alkalis: The resistance to both acidic and alkaline conditions reaches a relatively high level, being able to withstand the corrosion of strong acids and alkalis.
5. Anti-hydrolysis: Exhibits good water resistance and does not undergo hydrolysis reactions.
6. Adaptability: Can be utilized under normal atmospheric pressure and is also adaptable to slightly positive or negative pressure environments.

Precautions:
1. Oscillation Operation: Grasp the bottleneck, with a moderate amplitude. When oscillation is required, the liquid volume should be controlled within 1/3 of the capacity; when heating is necessary, it should be within 2/3.
2. Heating Mode: When heating, use a ceramic mesh as a pad to avoid direct contact with the heat source.
3. Sealing Measures: After adding the reactants, tightly cap the ground glass stopper and seal it with water. After the reaction concludes, slowly open the stopper and clean the bottle mouth and stopper.
4. Timely Cleaning: Promptly clean after the experiment to prevent the stains from drying. During cleaning, pay attention to protecting the bottle body and the ground glass joint.
5. Proper Storage: After drying, store in a dry, clean, and well-ventilated area, avoiding direct sunlight and dust contamination.