This liquid chlorine safe?

[Mopar4u]

The picture is the exact liquid chlorine im using to keep a TFP. Does it contain cya and how would i know (what do i look for on the bottle)?

 

[Newdude]

Just check the ingredients for sodium Hyperchlorite. It will list the %. The main label may call it bleach, chlorine, liquid shock, or others. If it has anything else, which you don’t want, those will be listed too, like Cyanuric Acid or Calcium. ‘Other ingredients’ is water.

 

[JJ_Tex]

I cant read the label too well, but liquid chlorine typically does not contain CYA.

Look at 2 things before you purchase:
Strength - This will be listed on the ingredients (bottom right of your picture). Look for the Sodium Hypochlorite %. Generally they are 10%, 12%, etc.
Manufacturer Date - This is typically a julian date. Some times it is a bit hard to read, but should be in the format of yy+the number of days into the year. So 21001 would be Jan 1, 2021, Jan 31st would be 21031, and today (6/30) would be 21181. Since the shock will lose strength over time, make sure it was made in the last 60 days or so and avoid anything that starts with 20xxx on the julian date since that would be last year.

 

[Mopar4u]

Here are the ingredients

 

[mknauss]

Its 12.5% bleach. All good.