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 Stir in a 1/4 cup of sour cream to prevent a dry layer from forming when the dip is set out. 2  This also adds some sour flavor to the dip. 3  Refried beans may be replaced with more salsa and cheese or chili. 4  Try a variety of salsas to create a sweet dip (mild with lots of tomato) or spicy (hot with lots of peppers). Stir in a 1/4 cup of sour cream to prevent a dry layer from forming when the dip is set out. 2  This also adds some sour flavor to the dip. 3  Refried beans may be replaced with more salsa and cheese or chili. 4  Try a variety of salsas to create a sweet dip (mild with lots of tomato) or spicy (hot with lots of peppers).