Chemical Concentrations
Not strictly a safety question but definitely EHS related....
Are there standard concentrations of the following chemicals (to your knowledge) that are available in the US market based on EHS regulations? I have a client that is running into issues getting quotes from suppliers because they're being told the concentrations are "not standard".
Sulfuric acid
Hydrogen Peroxide
Sodium Hydroxide
Calcium hydroxide
Comments (5)
There are concentrations of all of these that are most commonly requested (and therefore commonly produced), but you may just have an issue finding the concentration you want if it's outside of those common ones. For example, with sulfuric acid, 78%, 93%, and 98% are the most common (in my experience), so if you wanted something outside of that, then you'd probably have to do some digging to find specialty suppliers or find a manufacturer that's willing to create a special batch just for your client (they'd probably have to purchase a large quantity and do so regularly for them to agree to it).
Agree with Drew. There are common concentrations that are manufactured. Hydrogen peroxide typically comes in 3% and 30% for example.
If your client has a lab, they could always do their own dilutions.
“Based on EHS regulations,” no. Many places will keep bulk concentrations under applicable concentrations per Process Safety Management threshold quantities. You can refer to those as another thought to the group here.