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.
Pour the melted butter into the milk, and stir. 3. Then, use your substitute in place of one cup of heavy cream. Tip: If you use low-fat milk, your mixture will be a bit thinner than you want it to be. Add a tablespoon of flour to thicken it. Note: This substitute will not whip. If your recipe calls for whipping cream, you'll need to buy the real thing.