Jump to content

sodium or calcium hypochlorite is related to 2.5% active chlorine?


gamer87

Recommended Posts

is sodium or calcium hypochlorite related to 2.5% active chlorine? in a cleaning product it has the following composition: sodium or calcium hypochlorite, active chlorine

Edited by gamer87
Link to comment
Share on other sites

  • gamer87 changed the title to sodium or calcium hypochlorite is related to 2.5% active chlorine?
8 hours ago, gamer87 said:

is sodium or calcium hypochlorite related to 2.5% active chlorine? in a cleaning product it has the following composition: sodium or calcium hypochlorite, active chlorine

Hypochlorite, ClO-, ions have bleaching power just as free chlorine does. As there are several types of hypochlorite it is convenient to express their bleaching power in terms of the active chlorine equivalent, in order to have a common standard for their efficacy as bleaches. More here: https://en.wikipedia.org/wiki/Percent_active_chlorine

Link to comment
Share on other sites

Is the concentration of active chlorine in a solution the same as the concentration of sodium hypochlorite or calcium present in this product as well? How is the concentration of active chlorine 2.5% classified to generate chlorine gases and hypochlorous acid causing corrosion of metals and other objects?

Link to comment
Share on other sites

30 minutes ago, gamer87 said:

Is the concentration of active chlorine in a solution the same as the concentration of sodium hypochlorite or calcium present in this product as well? How is the concentration of active chlorine 2.5% classified to generate chlorine gases and hypochlorous acid causing corrosion of metals and other objects?

Read the link I gave you. 

Link to comment
Share on other sites

14 minutes ago, gamer87 said:


active chlorine 2.5% and hypochlorite is the same substance?

Read the link. There is even a table of various hypochlorites that shows you what the chlorine equivalent of each one is.

From this you will see it is not possible to answer your question unless you say which hypochlorite you are talking about. That's because the molecular weights of the various hypochlorites are different, so the chlorine equivalent by weight of each will differ. 

Edited by exchemist
Link to comment
Share on other sites

16 minutes ago, gamer87 said:

Sodium hypochlorite

That will be the second item in the table. So 1 g of that hypochlorite (the solid substance) is equivalent in bleaching power to 0.593g of chlorine. If you had a different hypochlorite, the figure would be different. Chlorine is a gas, whereas these materials are solid salts. So they are all different substances, but all of them release "active" chlorine atoms in the same way so they bleach things in the same way as chlorine does.  

 

 

Link to comment
Share on other sites

On 5/20/2021 at 1:10 PM, gamer87 said:

The cleaning product on the label has sodium hypochlorite, active chlorine 2.5% does this generate corrosive vapor to metals, electronic boards and DVD discs?

Yes I think it will. Hypochlorite solution reacts in much the same way as chlorine itself and gives off chlorine gas as well. 

 

P.S. More about how it works here: http://www.chm.bris.ac.uk/motm/bleach/bleachh.htm

Edited by exchemist
Link to comment
Share on other sites

5 hours ago, gamer87 said:

active chlorine 2.5% is many gases?

No, the "active chlorine" % quoted on a bottle of bleach is a measure of the strength of the bleach. It tells you how much chlorine a certain concentration of hypochlorite is equivalent to.

2.5% means that the concentration of sodium hypochlorite (in your case) has the same strength, as a bleach, as a solution containing 2.5% dissolved chlorine. It behaves like a chlorine solution of 2.5% , even though sodium hypochlorite is not the same substance as chlorine gas.

I understand you are concerned with possible corrosion of electronic components. My advice would be that your sodium hypochlorite solution is likely to be just as corrosive as 2.5% chlorine would be.     

Link to comment
Share on other sites

  • 4 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.