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[Chemical Knowledge]：Matters needing attention and operation specification for determination of sodium bisulfite

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Determination of sodium bisulfite is a common operation in chemical experiments, the correct experimental operation can ensure the accuracy of the results, but also to ensure the personal safety of laboratory personnel. The following will introduce the precautions and operation specifications for the determination of sodium bisulfite.
Precautions for
1.:

1. Wear lab coat, gloves and goggles and take personal protective measures before the experiment.

2. laboratory to maintain good ventilation, avoid sodium bisulfite vapor adverse effects on the human body.

3. When using sodium bisulfite, be careful to avoid contact with skin and eyes, such as accidental contact, immediately rinse with plenty of water.

4. in the experimental operation to comply with the relevant safety procedures, it is strictly prohibited to use sodium bisulfite mixed with other chemical reagents.

5. After the end of the experiment, clean up the experimental table and tools in time, and classify the waste.

2. Operation Specification:

1. Check whether the experimental instruments and reagents are in good condition before the experiment to avoid experimental failure due to equipment failure.

2. When weighing sodium bisulfite, use dry weighing paper to avoid the influence of moisture on weighing accuracy.

3. according to the experimental method to accurately add reagents and calibration liquid, to avoid the error caused by the experimental results are not accurate.

4. in the experiment, the reaction process should be controlled strictly according to the time to ensure the accuracy of the results.

5. Pay attention to control the temperature during the experiment to avoid the influence of temperature fluctuations on the experimental results.

through the above introduction, I believe we have a clearer understanding of the matters needing attention and operation specifications for the determination of sodium bisulfite. When carrying out the experiment, we must pay attention to personal protection and strictly follow the operation specifications to ensure the accuracy and safety of the experiment.