FIXATION OF CELEURE PRESERVATIVE (ACC) IN OALE SAP AND HEARTWOOD AT THREE TEMPERATURE TREATMENTS

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KARIMI A.N.; SHEYKH ALESLAMI S.M.

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Paper Information

Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2001 | Volume:54 | Issue:1 Page(s): 51-61

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Information Journal Paper

Title

FIXATION OF CELEURE PRESERVATIVE (ACC) IN OALE SAP AND HEARTWOOD AT THREE TEMPERATURE TREATMENTS

Author(s)

KARIMI A.N. | SHEYKH ALESLAMI S.M. | Issue Writer Certificate

Keywords

FIXATIONQ4

OAKQ2

ACCQ4

TEMPERATUREQ2

TOTAL CRQ4

CR6++Q4

SPECTROPHOTOMETRYQ4

ATOMIC ABSORPTIONQ4

Abstract

Growth in industry creates environmental problems. This has been an important subject of debate during recent decades. At present, a consideration of polluting agents and conducting research on them, are among important issues.Leakage of water borne preservatives out of impregnated wood, unavoidable in the process of bleaching, contributes to pollution. In order to minimize leaching processes, preservative salts ought to be fixed in wood. In this study, FIXATION rates of ACC (Acid Copper Chromate) in OAK sap and heartwood were compared at 17, 27 and 50°C TEMPERATUREs. The required 6 cm thick specimens were made out of OAK.In order to' get free preservative solution from sample, the sample was squeezed, the resulted extract being analyzed to determine concentration of active agents such as CR6++, TOTAL CR and Cu. Extracting was continued until the concentration of these materials was lowered to a minimum of their level, which would indicate full FIXATION (99.98 percent of CR6++).The results indicated the positive effect of TEMPERATURE on rate of FIXATION. At higher temeratures FIXATION rate was more considerable. Amount of CR6++ in extract lowered with higher FIXATION rate and that was more pronounced in heartwood as compared with the sap. FIXATION time at 50°C TEMPERATURE was 134 hours for sapwood (6 days) while for heartwood it was 284 hours (12 days).Under conditions of 27 degrees, measured time was 858 hrs (36 days) for sapwood and 1022 hrs (43 days) for heartwood. Under conditions of 17 degrees, rate of FIXATION was found 10 be very slow (about 2877 hours or approximately 4 months). Cr FIXATION reached 99.97% but Cu and Cr were still measurable in extracts.

Cites

THE EFFECTS OF WOOD EXTRACTIVE ON THE FIXATION AND LEACHING OF ACC PRESERVATIVE IN BEECH (FAGUS ORIENTALIS LIPSKY) WOOD

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APA: Copy

KARIMI, A.N., & SHEYKH ALESLAMI, S.M.. (2001). FIXATION OF CELEURE PRESERVATIVE (ACC) IN OALE SAP AND HEARTWOOD AT THREE TEMPERATURE TREATMENTS. IRANIAN JOURNAL OF NATURAL RESOURCES, 54(1), 51-61. SID. https://sid.ir/paper/22796/en

Vancouver: Copy

KARIMI A.N., SHEYKH ALESLAMI S.M.. FIXATION OF CELEURE PRESERVATIVE (ACC) IN OALE SAP AND HEARTWOOD AT THREE TEMPERATURE TREATMENTS. IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2001;54(1):51-61. Available from: https://sid.ir/paper/22796/en

IEEE: Copy

A.N. KARIMI, and S.M. SHEYKH ALESLAMI, “FIXATION OF CELEURE PRESERVATIVE (ACC) IN OALE SAP AND HEARTWOOD AT THREE TEMPERATURE TREATMENTS,” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 54, no. 1, pp. 51–61, 2001, [Online]. Available: https://sid.ir/paper/22796/en

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