Anecdotally, many years ago we were using in a tunnelling project what was called in jargon "shampoo" that was essentially some form of high concentration surfactants, they are used (injected in little quantities with water) in rock drilling mainly to prevent the bores to collapse (in order to later be able to insert the explosives in them).
The stuff was pretty much inexpensive (bought by the barrel), I diluted it 1:5 and made an exceptionally good liquid soap to wash car, trucks and equipment.
Then, diluted 1:10 and with added sawdust (we had on site a small carpentry shop) and little sand (the fine one we used for concrete) and some lemon juice the result was an as well very good hand wash paste for the workers.
Very well said.
Anecdotally, many years ago we were using in a tunnelling project what was called in jargon "shampoo" that was essentially some form of high concentration surfactants, they are used (injected in little quantities with water) in rock drilling mainly to prevent the bores to collapse (in order to later be able to insert the explosives in them).
The stuff was pretty much inexpensive (bought by the barrel), I diluted it 1:5 and made an exceptionally good liquid soap to wash car, trucks and equipment.
Then, diluted 1:10 and with added sawdust (we had on site a small carpentry shop) and little sand (the fine one we used for concrete) and some lemon juice the result was an as well very good hand wash paste for the workers.