[Sumprotta]

Part of my Chemistry project concerns dish washing detergent, specifically its foaming properties. After some research I have found much information about both sodium lauryl sulfate and sodium laureth sulfate, both foaming agents. From what I understand, sodium lauryl sulfate is the more potent one, and thus likely the one used for dish washing.

For my presentation I was planning to demonstrate how effective it is, but I haven't been able to find much documentation on this. I tried to find some to experiment on, but since they charge in excess of $100 for 250 grams, I figured it would be best to see how much I need first. Which leads me to my questions...

• Is there a general ratio as to foam output from the substance? (m^3 per gram)
• Does it make a difference for the reaction whether I dissolve it into a concentrated liquid/paste or use it in solid state?
• Are there any catalysts that increase the production of foam?
• What (approximate) concentration of SLS do you find in regular dish washing detergent?
• And finally: Is there any place to order this at a more manageable cost?

All help appreciated