Use and storage method of sodium bisulfite

Sodium bisulfite, white crystalline powder. The smell of sulfur dioxide is unpleasant. Part of the sulfur dioxide is lost in the exposed air and at the same time it is oxidized to sulfate. It is soluble in 3.5 parts of cold water, 2 parts of boiling water, and about 70 parts of ethanol, and its aqueous solution is acidic.

Closed operation, local exhaust. Prevent dust from being released into the workshop air. Operators must undergo special training and strictly abide by the operating regulations. It is recommended that operators wear self-priming filter dust masks, chemical safety protective glasses, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Avoid generating dust. Avoid contact with oxidants, acids and alkalis. Equipped with leakage emergency treatment equipment. Empty containers may be harmful residues.

use:

1. Used for bleaching cotton fabrics and organic matter;

2. Used as a reducing agent in dye, paper, leather, chemical synthesis and other industries;

3. Intermediates used in the pharmaceutical industry for the production of analgin and aminopyrine;

4. Food grade products are used as bleaching agents, preservatives, antioxidants;

5. Used for the treatment of chromium-containing wastewater, and used as an electroplating additive.

Sodium bisulfite, white crystalline powder. There is the smell of sulfur dioxide, and part of the sulfur dioxide is lost in the exposed air, and at the same time it is oxidized to sulfate.

1. Precautions for storage

Store in a cool, ventilated warehouse. Keep away from fire and heat. Prevent direct sunlight. Packaging sealed. It should be stored separately from oxidants, acids and alkalis, and avoid mixed storage. It should not be stored for a long time to avoid deterioration.

2. Transportation considerations

The packaging should be complete at the time of shipment, and the loading should be secure. During transportation, make sure that the container does not leak, collapse, fall or damage. It is strictly prohibited to mix and transport with oxidants, acids, alkalis, edible chemicals, etc. Transportation vehicles should be equipped with emergency leakage treatment equipment. It should be protected from exposure, rain and high temperature during transportation. Road transportation should follow the prescribed route, do not stop in residential areas and densely populated areas;