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  2. Sodium sesquicarbonate - Wikipedia

    en.wikipedia.org/wiki/Sodium_sesquicarbonate

    It is also used as a precipitating water softener, which combines with hard water minerals (calcium- and magnesium-based minerals) to form an insoluble precipitate, removing these hardness minerals from the water. [5] It is the carbonate moiety which forms the precipitate, the bicarbonate being included to moderate the material's alkalinity.

  3. List of CAS numbers by chemical compound - Wikipedia

    en.wikipedia.org/wiki/List_of_CAS_numbers_by...

    Chemical formula Synonyms CAS number C 10 H 16 N 2 O 8: Ethylenediaminetetraacetic acid (EDTA): 6381–92–6 C 12 H 22 O 11: sucrose: 57–50–1 C 18 H 29 O 3 S: sodium dodecyl benzenesulfonate: 2155–30–0

  4. CAS Registry Number - Wikipedia

    en.wikipedia.org/wiki/CAS_Registry_Number

    The check digit is found by taking the last digit times 1, the preceding digit times 2, the preceding digit times 3 etc., adding all these up and computing the sum modulo 10. For example, the CAS number of water is 7732-18-5: the checksum 5 is calculated as (8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) = 105; 105 mod 10 = 5.

  5. Polystyrene sulfonate - Wikipedia

    en.wikipedia.org/wiki/Polystyrene_sulfonate

    Water softening is achieved by percolating hard water through a bed of the sodium form of cross-linked polystyrene sulfonate. The hard ions such as calcium (Ca 2+) and magnesium (Mg 2+) adhere to the sulfonate groups, displacing sodium ions. The resulting solution of sodium ions is softened.

  6. Sodium hexametaphosphate - Wikipedia

    en.wikipedia.org/wiki/Sodium_hexametaphosphate

    CAS Number. 68915-31-1 ... Water softener salt. SHMP is used in Diamond Crystal brand Bright & Soft Salt Pellets for water softeners in a concentration of 0.03%.

  7. Sodium gluconate - Wikipedia

    en.wikipedia.org/wiki/Sodium_gluconate

    Its E number is E576. This white, water-soluble powder has a wide range of applications across industries. Originally derived from gluconic acid in the 19th century, Sodium Gluconate is known for its chelating properties and is utilized as a chelating agent in various processes. It finds applications in textile, metal surface treatment, cement ...

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