For Instance, Tri-Sodium-Phosphate, is a VERY, VERY good thing for you and it helps regulate acidity in foods which preserves Vitamin Content. Also, its a great for reducing lactic acid in the muscles as well as increasing a VO2 Max.
I also use it to clean surfaces before I paint. I could use Vinegar as well and get the same affect. I have 160-170 year old wood and over 500 year old floors (age of the Heart Pine) and TSP is quite gentle. I prefer Vinegar on the floors though. Just a small amount.
Sounds yummy, this VERY VERY good thing.

Trisodium phosphate poisoningURL of this page:
http://www.nlm.nih.gov/medlineplus/ency/article/002489.htm.Trisodium phosphate is a strong chemical. Poisoning occurs if you accidentally swallow, breathe in, or spill large amounts of this substance on your skin.
This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.
Poisonous IngredientTrisodium phosphate
Where Found•Some automatic dishwashing soaps
•Some toilet bowl cleaners
•Many industrial solvents and cleaners (hundreds to thousands of construction agents, flooring strippers, brick cleaners, cements, and many others)
Note: This list may not be all-inclusive.
Symptoms•Airways and lungs
◦Breathing difficulty (from inhalation)
◦Coughing
◦Throat swelling (which may also cause breathing difficulty)
•Eyes, ears, nose, and throat
◦Severe pain in the throat
◦Severe pain or burning in the nose, eyes, ears, lips, or tongue
◦Vision loss
•Heart and blood
◦Low blood pressure -- develops rapidly
◦Collapse
◦Severe change in blood acid level
•Skin
◦Burns
◦Hives
◦Holes in the skin or underlying tissue
◦Skin irritation
•Stomach and intestines
◦Blood in the stool
◦Burns of the esophagus (food pipe) and stomach
◦Diarrhea
◦Severe abdominal pain
◦Vomiting (possibly bloody)
Home CareDo NOT make a person throw up.
If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes.
If the chemical was swallowed, immediately give the person water or milk. Do NOT give water or milk if the patient is vomiting or has a decreased level of alertness.
If the person breathed in the poison, immediately move him or her to fresh air.