INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY
ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experime...
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| Autor*in: |
Orlando Sílvio Caires Neves [verfasserIn] Igor Glaeser da Rocha [verfasserIn] Eduarda Demari Avrella [verfasserIn] Luciana Pinto Paim [verfasserIn] Claudimar Sidnei Fior [verfasserIn] |
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| Format: |
E-Artikel |
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Englisch ; Spanisch ; Portugiesisch |
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In: Revista Árvore - Sociedade de Investigações Florestais, 2004 |
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Link aufrufen |
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| DOI / URN: |
10.1590/1806-908820200000008 |
|---|
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DOAJ003201422 |
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10.1590/1806-908820200000008 doi (DE-627)DOAJ003201422 (DE-599)DOAJd32c7fe20ebb471f9a33a05f716343c4 DE-627 ger DE-627 rakwb eng spa por SD1-669.5 Orlando Sílvio Caires Neves verfasserin aut INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experiment aimed to determine the lowest hydrogel dose, at which occur maximum deionized water absorption. The test was assembled in a completely randomized design with six hydrogel doses (1, 2, 4, 6, 8 and 10 g L-1) and four replicates. The second experiment consisted of testing the sucrose P.A. doses (0, 1, 2, 4 and 6 %) in order to evaluate the change in osmotic potential of the solution on hydrogel hydration. The third and fourth studies were carried out in a complete randomized design, using a 6 x 3 x 2 factorial scheme with four replicates. For the third experiment, the factors were six levels of EC (0; 0.25; 0.50; 1.00; 1.50 and 2.00 mS cm1) increased by the addition of three anions (NO3-; PO43- and SO42-) along with counter-ions Ca++ and K+. For the fourth experiment, the same six levels of EC were achieved by adding the three cations (Ca++, Mg++ and K+), along with the counter-ions Cl- and SO42-. Hydration capacity of the hydrogel decreases when the ionic concentration of the solution increases and the reduction of the osmotic potential through the addition of sucrose does not interfere in its swelling capability. Anions and cations in the solution negatively influence the process of the hydrogel hydration. The most pronounced effect is for those with higher valence. Hydroretenctor Ions Polyacrylate Forestry Igor Glaeser da Rocha verfasserin aut Eduarda Demari Avrella verfasserin aut Luciana Pinto Paim verfasserin aut Claudimar Sidnei Fior verfasserin aut In Revista Árvore Sociedade de Investigações Florestais, 2004 (DE-627)365134090 (DE-600)2111203-4 18069088 nnns https://doi.org/10.1590/1806-908820200000008 kostenfrei https://doaj.org/article/d32c7fe20ebb471f9a33a05f716343c4 kostenfrei http://www.scielo.br/pdf/rarv/v44/0100-6762-rarv-44-e4408.pdf kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622020000100208&tlng=en kostenfrei https://doaj.org/toc/1806-9088 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR |
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10.1590/1806-908820200000008 doi (DE-627)DOAJ003201422 (DE-599)DOAJd32c7fe20ebb471f9a33a05f716343c4 DE-627 ger DE-627 rakwb eng spa por SD1-669.5 Orlando Sílvio Caires Neves verfasserin aut INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experiment aimed to determine the lowest hydrogel dose, at which occur maximum deionized water absorption. The test was assembled in a completely randomized design with six hydrogel doses (1, 2, 4, 6, 8 and 10 g L-1) and four replicates. The second experiment consisted of testing the sucrose P.A. doses (0, 1, 2, 4 and 6 %) in order to evaluate the change in osmotic potential of the solution on hydrogel hydration. The third and fourth studies were carried out in a complete randomized design, using a 6 x 3 x 2 factorial scheme with four replicates. For the third experiment, the factors were six levels of EC (0; 0.25; 0.50; 1.00; 1.50 and 2.00 mS cm1) increased by the addition of three anions (NO3-; PO43- and SO42-) along with counter-ions Ca++ and K+. For the fourth experiment, the same six levels of EC were achieved by adding the three cations (Ca++, Mg++ and K+), along with the counter-ions Cl- and SO42-. Hydration capacity of the hydrogel decreases when the ionic concentration of the solution increases and the reduction of the osmotic potential through the addition of sucrose does not interfere in its swelling capability. Anions and cations in the solution negatively influence the process of the hydrogel hydration. The most pronounced effect is for those with higher valence. Hydroretenctor Ions Polyacrylate Forestry Igor Glaeser da Rocha verfasserin aut Eduarda Demari Avrella verfasserin aut Luciana Pinto Paim verfasserin aut Claudimar Sidnei Fior verfasserin aut In Revista Árvore Sociedade de Investigações Florestais, 2004 (DE-627)365134090 (DE-600)2111203-4 18069088 nnns https://doi.org/10.1590/1806-908820200000008 kostenfrei https://doaj.org/article/d32c7fe20ebb471f9a33a05f716343c4 kostenfrei http://www.scielo.br/pdf/rarv/v44/0100-6762-rarv-44-e4408.pdf kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622020000100208&tlng=en kostenfrei https://doaj.org/toc/1806-9088 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR |
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10.1590/1806-908820200000008 doi (DE-627)DOAJ003201422 (DE-599)DOAJd32c7fe20ebb471f9a33a05f716343c4 DE-627 ger DE-627 rakwb eng spa por SD1-669.5 Orlando Sílvio Caires Neves verfasserin aut INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experiment aimed to determine the lowest hydrogel dose, at which occur maximum deionized water absorption. The test was assembled in a completely randomized design with six hydrogel doses (1, 2, 4, 6, 8 and 10 g L-1) and four replicates. The second experiment consisted of testing the sucrose P.A. doses (0, 1, 2, 4 and 6 %) in order to evaluate the change in osmotic potential of the solution on hydrogel hydration. The third and fourth studies were carried out in a complete randomized design, using a 6 x 3 x 2 factorial scheme with four replicates. For the third experiment, the factors were six levels of EC (0; 0.25; 0.50; 1.00; 1.50 and 2.00 mS cm1) increased by the addition of three anions (NO3-; PO43- and SO42-) along with counter-ions Ca++ and K+. For the fourth experiment, the same six levels of EC were achieved by adding the three cations (Ca++, Mg++ and K+), along with the counter-ions Cl- and SO42-. Hydration capacity of the hydrogel decreases when the ionic concentration of the solution increases and the reduction of the osmotic potential through the addition of sucrose does not interfere in its swelling capability. Anions and cations in the solution negatively influence the process of the hydrogel hydration. The most pronounced effect is for those with higher valence. Hydroretenctor Ions Polyacrylate Forestry Igor Glaeser da Rocha verfasserin aut Eduarda Demari Avrella verfasserin aut Luciana Pinto Paim verfasserin aut Claudimar Sidnei Fior verfasserin aut In Revista Árvore Sociedade de Investigações Florestais, 2004 (DE-627)365134090 (DE-600)2111203-4 18069088 nnns https://doi.org/10.1590/1806-908820200000008 kostenfrei https://doaj.org/article/d32c7fe20ebb471f9a33a05f716343c4 kostenfrei http://www.scielo.br/pdf/rarv/v44/0100-6762-rarv-44-e4408.pdf kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622020000100208&tlng=en kostenfrei https://doaj.org/toc/1806-9088 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR |
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SD1-669.5 INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY Hydroretenctor Ions Polyacrylate |
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INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY |
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INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY |
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Orlando Sílvio Caires Neves |
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Orlando Sílvio Caires Neves Igor Glaeser da Rocha Eduarda Demari Avrella Luciana Pinto Paim Claudimar Sidnei Fior |
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influence of nitrates, phosphate, sulphate and salts of ca, mg and k, on hydrogel hydratation capacity |
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INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY |
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ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experiment aimed to determine the lowest hydrogel dose, at which occur maximum deionized water absorption. The test was assembled in a completely randomized design with six hydrogel doses (1, 2, 4, 6, 8 and 10 g L-1) and four replicates. The second experiment consisted of testing the sucrose P.A. doses (0, 1, 2, 4 and 6 %) in order to evaluate the change in osmotic potential of the solution on hydrogel hydration. The third and fourth studies were carried out in a complete randomized design, using a 6 x 3 x 2 factorial scheme with four replicates. For the third experiment, the factors were six levels of EC (0; 0.25; 0.50; 1.00; 1.50 and 2.00 mS cm1) increased by the addition of three anions (NO3-; PO43- and SO42-) along with counter-ions Ca++ and K+. For the fourth experiment, the same six levels of EC were achieved by adding the three cations (Ca++, Mg++ and K+), along with the counter-ions Cl- and SO42-. Hydration capacity of the hydrogel decreases when the ionic concentration of the solution increases and the reduction of the osmotic potential through the addition of sucrose does not interfere in its swelling capability. Anions and cations in the solution negatively influence the process of the hydrogel hydration. The most pronounced effect is for those with higher valence. |
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ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experiment aimed to determine the lowest hydrogel dose, at which occur maximum deionized water absorption. The test was assembled in a completely randomized design with six hydrogel doses (1, 2, 4, 6, 8 and 10 g L-1) and four replicates. The second experiment consisted of testing the sucrose P.A. doses (0, 1, 2, 4 and 6 %) in order to evaluate the change in osmotic potential of the solution on hydrogel hydration. The third and fourth studies were carried out in a complete randomized design, using a 6 x 3 x 2 factorial scheme with four replicates. For the third experiment, the factors were six levels of EC (0; 0.25; 0.50; 1.00; 1.50 and 2.00 mS cm1) increased by the addition of three anions (NO3-; PO43- and SO42-) along with counter-ions Ca++ and K+. For the fourth experiment, the same six levels of EC were achieved by adding the three cations (Ca++, Mg++ and K+), along with the counter-ions Cl- and SO42-. Hydration capacity of the hydrogel decreases when the ionic concentration of the solution increases and the reduction of the osmotic potential through the addition of sucrose does not interfere in its swelling capability. Anions and cations in the solution negatively influence the process of the hydrogel hydration. The most pronounced effect is for those with higher valence. |
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ABSTRACT Hydrogel hydration capacity in solution was evaluated at different levels of electrical conductivity (EC) using nitrate, phosphates, sulfates, and salts of calcium, potassium and magnesium. Four sequential experiments were performed using potassium polyacrylate copolymer. The first experiment aimed to determine the lowest hydrogel dose, at which occur maximum deionized water absorption. The test was assembled in a completely randomized design with six hydrogel doses (1, 2, 4, 6, 8 and 10 g L-1) and four replicates. The second experiment consisted of testing the sucrose P.A. doses (0, 1, 2, 4 and 6 %) in order to evaluate the change in osmotic potential of the solution on hydrogel hydration. The third and fourth studies were carried out in a complete randomized design, using a 6 x 3 x 2 factorial scheme with four replicates. For the third experiment, the factors were six levels of EC (0; 0.25; 0.50; 1.00; 1.50 and 2.00 mS cm1) increased by the addition of three anions (NO3-; PO43- and SO42-) along with counter-ions Ca++ and K+. For the fourth experiment, the same six levels of EC were achieved by adding the three cations (Ca++, Mg++ and K+), along with the counter-ions Cl- and SO42-. Hydration capacity of the hydrogel decreases when the ionic concentration of the solution increases and the reduction of the osmotic potential through the addition of sucrose does not interfere in its swelling capability. Anions and cations in the solution negatively influence the process of the hydrogel hydration. The most pronounced effect is for those with higher valence. |
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INFLUENCE OF NITRATES, PHOSPHATE, SULPHATE AND SALTS OF Ca, Mg AND K, ON HYDROGEL HYDRATATION CAPACITY |
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