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For laboratory survival, the most important aspect must be safety. Laboratories contain many chemicals and hazardous instruments. It is essential to recognize and understand the hazards and handling methods of chemicals and instruments to be responsible for one's own and others' life safety.
1. Wear work clothes when entering the laboratory, and wear appropriate gloves and protective gear during experiments. Strong acids and alkalis are highly corrosive to clothing and our skin, posing a significant risk of burns. If a large amount of strong acid or alkali gets on the skin, do not panic or rinse with water. Immediately wipe it off with a wet cloth, then neutralize it with the corresponding weak acid or alkali, and finally rinse thoroughly with clean water. When harm has already occurred, all we can do is try to minimize the damage.
2. Wash hands before and after experiments. During experiments, avoid touching body parts or using work clothes to wipe hands to prevent chemical exposure and indirect harm to the body. Also, wash hands before and after drinking water or eating during breaks to avoid indirectly ingesting chemicals, which can cause irreversible damage to the body. Minor harm can accumulate and gradually worsen over time.
3. When using volatile chemicals and toxic substances, perform operations in a fume hood. Avoid inhalation by oneself or others, which could cause harm.
4. Pay attention to the classification and timely disposal of laboratory waste liquids. Do not store large amounts of waste liquids simultaneously to avoid accumulation. Toxic and hazardous waste liquids must be specially labeled. Prevent the mixing of waste liquids to avoid dangers.
Case studies:
① In one instance, a staff member mistook waste liquid containing a large amount of toluene for chromic acid cleaning solution (both have similar colors) and mixed them together, resulting in an immediate explosion. Afterwards, he was left with scars on the corners of his eyes.
② During a waste liquid disposal process, someone casually poured an unlabeled bottle of liquid into a large waste container, causing an explosion. It was later discovered that the liquid was phosphorus oxychloride, which decomposes upon contact with water, releasing a large amount of heat.

5. When the laboratory is unattended, ensure that doors and windows are locked to prevent environmental incompatibility of hazardous chemicals, which could lead to explosion risks, and to prevent theft of chemicals. Pay attention to water and electricity safety to avoid endangering one's own or others' lives.
6. During experiments, avoid excessive movements that could cause liquid splashing or spraying onto oneself or others.
7. Do not forcefully squeeze glass instruments without protective measures, as this may cause glass breakage and splintering, leading to cuts. If glass breaks, handle it promptly to avoid causing secondary harm to others.
8. For visitors to the laboratory, do not randomly touch chemicals or chemical instruments without supervision. This prevents harm to oneself and trouble for others.
The above are some basic laboratory safety tips. For all laboratory-related staff, we hope everyone can return home healthy. (Content source: Internet, compiled and edited by Sister Xiaoxi)

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