How to control the scaling of CaCO3: a “fingerprinting technique” to classify additives | Zendy

Andreas Verch | Zendy; Denis Gebauer | Zendy; Markus Antonietti | Zendy; Helmut Cölfen | Zendy

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How to control the scaling of CaCO3: a “fingerprinting technique” to classify additives

Author(s) -

Andreas Verch,

Denis Gebauer,

Markus Antonietti,

Helmut Cölfen

Publication year - 2011

Publication title -

physical chemistry chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.053

H-Index - 239

eISSN - 1463-9084

pISSN - 1463-9076

DOI - 10.1039/c1cp21328h

Subject(s) - polystyrene sulfonate , sulfonate , chemistry , crystallization , precipitation , polyacrylic acid , calcium carbonate , polystyrene , polymer , chemical engineering , sodium , organic chemistry , physics , pedot:pss , meteorology , engineering

A titration set-up coupling ion selective electrodes with pH adjustment was used to analyze the effects of additives present during precipitation of calcium carbonate. Besides industrially well-established antiscalants (sodium triphosphate, citrate, polyacrylate and poly(aspartic acid)), also functional polymers being active in morphosynthesis (polystyrene sulfonate and poly(styrene-alt-maleic acid)) were analyzed. Interestingly each additive acts in its specific way, suggesting the notation "fingerprinting" for a complex interplay of up to five "solution modes" of influencing CaCO(3) precipitation and crystallisation. The results provide new insights into the modes of additive controlled crystallisation, and in the long run, the insights may facilitate the design of precipitation systems that yield complex and tailor-made crystals.

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