Compounds with similar functions are
        <a href="sodium_carbonate.html">sodium carbonate</a>,
        <a href="edta.html">sodium edta</a>,
        <a href="sodium_citrate.html">sodium citrate</a>,
        <a href="phosphoric_acid.html">phosphoric acid</a>,
        <a href="diethylenetriaminepentaacetic_acid.html">pentasodium pentetate</a>,
        <a href="tetrasodium_etidronate.html">Tetrasodium etidronate</a>.
        and
        <a href="tetrasodium_pyrophosphate.html">Tetrasodium pyrophosphate</a>.