Phosphonate salts are the result of deprotonation of phosphonic acids, which are diprotic acids: Phosphonate esters are the result of condensation of phosphonic acids with alcohols. Several methods exist for the preparation of phosphonic acids and their salts.
1 Stir in the tomato sauce, tomato paste, vinegar, diced tomatoes, and brown sugar. Season with chili powder, Italian seasoning, and salt. Bring to a boil, reduce heat to low, and simmer 1 hour.  Mix the cornstarch and water, and stir into the salsa to thicken. Transfer salsa to sterilized jars, leaving 1/2 inch headroom, and seal. Process jars in a boiling water bath 15 minutes. Store unsealed jars in the refrigerator.
1 Add onion, oregano, chili powder, basil, ground black pepper, salt, cumin, parsley, salsa and tomato sauce. 2  Mix together and then stir in the water. 3  Bring to a boil, reduce heat to low and simmer for 15 to 20 minutes. Add the garlic and saute for 1 to 2 minutes. 2  Add onion, oregano, chili powder, basil, ground black pepper, salt, cumin, parsley, salsa and tomato sauce.