Additional Information for Sulfurous Acid
Sulfurous acid, also known as sulfur dioxide solution, is a chemical compound with the formula H2SO3. It is classified as a weak acid and is formed when sulfur dioxide (SO2) dissolves in water.
Sulfurous acid is commonly used in various industries and applications. Here are some key points about sulfurous acid:
1. Chemical Formula: H2SO3
2. Molecular Weight: 82.07 g/mol
3. Appearance: Sulfurous acid is a colorless liquid with a pungent odor.
4. Solubility: It is highly soluble in water.
5. Acidic Properties: Sulfurous acid is a weak acid, meaning it partially dissociates in water to release hydrogen ions (H+).
6. Oxidation State: Sulfurous acid contains sulfur in the +4 oxidation state.
7. Preparation: Sulfurous acid is prepared by dissolving sulfur dioxide gas in water. It can also be obtained by the reaction of sulfur trioxide (SO3) with water.
8. Uses: Sulfurous acid has various applications, including:
- As a reducing agent in chemical reactions.
- In the production of dyes, pharmaceuticals, and other chemicals.
- In the food industry as a preservative and antioxidant.
- In water treatment to remove chlorine and other oxidizing agents.
- In the production of paper and pulp to bleach the fibers.
- In the wine industry to prevent oxidation and microbial growth.
It is important to handle sulfurous acid with care as it is a corrosive substance. Proper safety precautions should be followed when working with this chemical, including wearing protective equipment such as gloves and goggles.
Please note that sulfurous acid should not be confused with sulfuric acid (H2SO4), which is a stronger acid with different properties and applications.
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Related Item Names for INC 23031 Sulfurous Acid
NATO Stock Numbers with Item Name 23031 Sulfurous Acid Page 1 of 1
- 0370
- RNCC: 3 | RNVC: 1 | DAC: 4
- A307-1
- RNCC: 3 | RNVC: 9 | DAC: 5
- A307
- RNCC: 3 | RNVC: 1 | DAC: 2