Role of calcium acid phosphate as corrosion inhibitive pigment
- Autores
- Vetere, Vicente Francisco; Romagnoli, Roberto
- Año de publicación
- 1994
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Chromate based anticorrosive pigments are gradually being replaced because of their toxicity and carcinogenic properties. Zinc phosphate has been used to replace chromates but has led to contradictory results, its main difficulty being low solubility. Calcium acid phosphate, which has a higher solubility, could replace zinc phosphate. Evaluations of the degree of rusting on painted panels, corrosion rate measurements, and electrochemical studies ( corrosion potential measurements and polarisation curves) have shown that calcium acid phosphate is better than zinc phosphate and is comparable to zinc tetroxychromate as an anticorrosive pigment in a phenolic chlorinated rubber binder. An advantage from an ecological point of view is that calcium ions provide less contamination than zinc ions.
Centro de Investigación y Desarrollo en Tecnología de Pinturas - Materia
-
Química
Corrosion
calcium
paints
pigments - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/175522
Ver los metadatos del registro completo
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Role of calcium acid phosphate as corrosion inhibitive pigmentVetere, Vicente FranciscoRomagnoli, RobertoQuímicaCorrosioncalciumpaintspigmentsChromate based anticorrosive pigments are gradually being replaced because of their toxicity and carcinogenic properties. Zinc phosphate has been used to replace chromates but has led to contradictory results, its main difficulty being low solubility. Calcium acid phosphate, which has a higher solubility, could replace zinc phosphate. Evaluations of the degree of rusting on painted panels, corrosion rate measurements, and electrochemical studies ( corrosion potential measurements and polarisation curves) have shown that calcium acid phosphate is better than zinc phosphate and is comparable to zinc tetroxychromate as an anticorrosive pigment in a phenolic chlorinated rubber binder. An advantage from an ecological point of view is that calcium ions provide less contamination than zinc ions.Centro de Investigación y Desarrollo en Tecnología de Pinturas1994info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf115-119http://sedici.unlp.edu.ar/handle/10915/175522enginfo:eu-repo/semantics/altIdentifier/issn/1478-422Xinfo:eu-repo/semantics/altIdentifier/doi/10.1179/000705994798267863info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:47:13Zoai:sedici.unlp.edu.ar:10915/175522Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:47:14.009SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| title |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| spellingShingle |
Role of calcium acid phosphate as corrosion inhibitive pigment Vetere, Vicente Francisco Química Corrosion calcium paints pigments |
| title_short |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| title_full |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| title_fullStr |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| title_full_unstemmed |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| title_sort |
Role of calcium acid phosphate as corrosion inhibitive pigment |
| dc.creator.none.fl_str_mv |
Vetere, Vicente Francisco Romagnoli, Roberto |
| author |
Vetere, Vicente Francisco |
| author_facet |
Vetere, Vicente Francisco Romagnoli, Roberto |
| author_role |
author |
| author2 |
Romagnoli, Roberto |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Química Corrosion calcium paints pigments |
| topic |
Química Corrosion calcium paints pigments |
| dc.description.none.fl_txt_mv |
Chromate based anticorrosive pigments are gradually being replaced because of their toxicity and carcinogenic properties. Zinc phosphate has been used to replace chromates but has led to contradictory results, its main difficulty being low solubility. Calcium acid phosphate, which has a higher solubility, could replace zinc phosphate. Evaluations of the degree of rusting on painted panels, corrosion rate measurements, and electrochemical studies ( corrosion potential measurements and polarisation curves) have shown that calcium acid phosphate is better than zinc phosphate and is comparable to zinc tetroxychromate as an anticorrosive pigment in a phenolic chlorinated rubber binder. An advantage from an ecological point of view is that calcium ions provide less contamination than zinc ions. Centro de Investigación y Desarrollo en Tecnología de Pinturas |
| description |
Chromate based anticorrosive pigments are gradually being replaced because of their toxicity and carcinogenic properties. Zinc phosphate has been used to replace chromates but has led to contradictory results, its main difficulty being low solubility. Calcium acid phosphate, which has a higher solubility, could replace zinc phosphate. Evaluations of the degree of rusting on painted panels, corrosion rate measurements, and electrochemical studies ( corrosion potential measurements and polarisation curves) have shown that calcium acid phosphate is better than zinc phosphate and is comparable to zinc tetroxychromate as an anticorrosive pigment in a phenolic chlorinated rubber binder. An advantage from an ecological point of view is that calcium ions provide less contamination than zinc ions. |
| publishDate |
1994 |
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1994 |
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eng |
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