Sodium Metabisulfite in SO2 production

  • Thread starter sharkman
  • Start date
  • Tags
    Sodium
In summary, Sodium Metabisulfite and Sodium Bisulfite are chemically interchangeable and can be converted from one to the other by adding water. They are also interchangeable in solution and can be used to lower the pH of a system containing H ions. However, if Sodium Metabisulfite is added to a solution without H ions, no chemical reaction will occur. To suspend Sodium Metabisulfite in solution, an aqueous solution of sodium hydroxide or sodium carbonate may be used.
  • #1
sharkman
1
0
Some one here is going to have to let me know if this is correct.

Sodium Metabisulfite is chemically inter-changeable with Sodium Bisulfite. When Sodium meta-Bisulfite is hydrated, it is converted to Sodium Bisulfite.

Na2S2O5 + H2O ========== 2 Na H SO3

From a solution these products are inter-changeable.
Diffusing SO2 in a liquid lowers it's Ph.

This non chemically bonded SO2 is then slowly dispersed out of solution using aeration. Causing the Ph of the liquid to slowly rise.

If Sodium Metabisulfite is mixed into solution containing no H ions. No chemical reaction would take place. It then could be used through a dosing pump to lower the Ph of a system containing H ions (H2O). I am having trouble locating a solution to suspend Sodium Metabisulfite. So that it can run through a dosing pump. Any ideas on what I can use.

Can't run a dry chemical though a dosing pump very well.
 
Chemistry news on Phys.org
  • #2
Yes, your explanation of the chemical reaction between Sodium Metabisulfite and Sodium Bisulfite is correct. As for suspending Sodium Metabisulfite in a solution, you may want to consider using an aqueous solution of sodium hydroxide or sodium carbonate.
 
  • #3


I would like to confirm that your understanding of the chemical reactions involving Sodium Metabisulfite and Sodium Bisulfite is correct. The hydration of Sodium Metabisulfite does indeed convert it to Sodium Bisulfite, and both compounds are interchangeable in solution.

In terms of your question about suspending Sodium Metabisulfite for use in a dosing pump, one potential solution could be to create a slurry by mixing the compound with a liquid such as water or another solvent. This would allow for easier handling and dosing through a pump. Alternatively, you could also try using a different form of Sodium Metabisulfite, such as a powder or granular form, which may be easier to handle and dose. However, it is important to carefully consider the compatibility of the compound with the dosing pump and the system in which it will be used to ensure safe and effective use.
 

1. What is sodium metabisulfite and how is it used in SO2 production?

Sodium metabisulfite is a chemical compound that is commonly used in the production of sulfur dioxide (SO2). It is a white, crystalline powder that is soluble in water and is often added to water to create a solution for use in SO2 production. It is used as a reducing agent to convert sulfur dioxide gas into a liquid form for transportation and storage.

2. What role does sodium metabisulfite play in the purification of SO2?

Sodium metabisulfite plays a crucial role in the purification of sulfur dioxide. It acts as a powerful reducing agent, reacting with impurities such as oxygen and other oxidizing agents to form harmless compounds. This helps to remove impurities from the sulfur dioxide, ensuring that it meets quality standards and is safe for use in various applications.

3. Is sodium metabisulfite safe to handle and use in SO2 production?

When handled and used properly, sodium metabisulfite is generally considered safe. However, it is important to follow safety precautions and guidelines when handling the chemical, as it can cause skin and eye irritation if it comes into direct contact. It is also important to store and transport the chemical in a secure and well-ventilated environment.

4. How does the quality of sodium metabisulfite affect the production of SO2?

The quality of sodium metabisulfite is a crucial factor in the production of SO2. Impure or low-quality sodium metabisulfite can result in lower yields of SO2, as well as potential contamination and safety hazards. It is important to use high-quality sodium metabisulfite from a reputable supplier to ensure the best results and minimize potential risks.

5. Are there any alternatives to using sodium metabisulfite in SO2 production?

While sodium metabisulfite is the most common and widely used reducing agent in SO2 production, there are some alternatives that can be used. These include sulfur dioxide gas cylinders, sulfurous acid, and sodium sulfite. However, each alternative has its own drawbacks and may not be as effective as sodium metabisulfite, making it the preferred choice for most SO2 production processes.

Similar threads

  • Materials and Chemical Engineering
Replies
1
Views
2K
Replies
1
Views
2K
Replies
16
Views
2K
  • Biology and Chemistry Homework Help
Replies
5
Views
2K
  • Chemistry
Replies
3
Views
7K
  • Biology and Chemistry Homework Help
Replies
4
Views
7K
  • Biology and Chemistry Homework Help
Replies
7
Views
13K
  • Biology and Chemistry Homework Help
Replies
1
Views
4K
  • Chemistry
Replies
2
Views
3K
Replies
4
Views
1K
Back
Top