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[Chemical Knowledge]：Points to note when using nitric acid (iii)

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Europium (III) nitrate is a commonly used chemical reagent, which is widely used in laboratory and industrial production. However, due to its certain toxicity and corrosiveness, it is necessary to pay special attention to the following matters when using it:

1. Prevent contact with skin and respiratory tract
Europium nitrate (iii) has certain irritation, and long-term or large-scale contact may cause damage to skin and respiratory tract. Therefore, protective equipment such as lab gloves, goggles and masks should be worn during use to avoid contact with skin and inhalation of gases.

2. Prevent ingestion and splashing into eyes
europium nitrate (iii) is highly corrosive and may cause serious injury if ingested or splashed into eyes. Therefore, it should be kept away from food and beverages during use and storage, and care should be taken to avoid splashing into the eyes. In case of an accident, rinse with water immediately and seek the help of a professional doctor.

3. Precautions for storage and handling
Europium nitrate (iii) should be stored in a dry and ventilated place, away from fire sources and flammable materials, and avoid direct sunlight. In the process of handling, care should be taken to handle with care, avoid oscillation and impact, so as to avoid leakage and accidents.

4. Waste disposal
The discarded europium nitrate (iii) shall be disposed in accordance with the corresponding laws and regulations, and shall not be dumped or mixed with other substances at will, so as not to pollute the environment and endanger human health.
When using europium (iii) nitrate
, it is necessary to strictly abide by the operating procedures and safe operation requirements, and do a good job of personal protection and experimental equipment protection to ensure the safety of chemical experiments and operations. At the same time, reducing the use of europium (iii) nitrate and reducing waste generation are also important measures to protect the environment and human health.

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