Common Safety Hazards in the Use of Chemistry Teaching Instruments:

1. Improper Storage of Chemicals:

Flammable, explosive, or highly toxic reagents, if not stored in proper categories and sealed containers, can easily leak or cause unexpected reactions.

2. Defective Electrical Equipment:

Aging wiring or lack of regular maintenance in electrical components such as heating devices and electronic sensors can lead to electrical fires or electric shocks.

3. Lack of Protective Measures:

Failure to wear protective eyewear and gloves, or to use a fume hood, can easily cause chemical burns or inhalation of harmful gases.

4. Inadequate Instrument Maintenance:

Neglecting maintenance tasks such as sensor calibration and temperature probe replacement can lead to measurement errors or even instrument malfunction.