| 5种不同品系相思木材的化学性质 Ⅱ.pH值和酸、碱缓冲容量 |
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| 引用本文： | 黄洛华,秦特夫. 5种不同品系相思木材的化学性质 Ⅱ.pH值和酸、碱缓冲容量[J]. 林业科学研究, 2005, 18(3): 342-344 |
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| 作者姓名： | 黄洛华 秦特夫 |
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| 作者单位： | 中国林业科学研究院木材工业研究所,北京,100091 |
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| 基金项目： | 中国OPEC科技产业合作项目中部分内容 |
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| 摘 要： | 对5种相思树人工林木材的pH值和酸、碱缓冲容量的研究结果表明：5种相思树人工林木材之间pH值变异较小，其pH值在4．8～5．9之间；厚荚相思木材心材、边材之间pH值变化较大；木材的酸缓冲容量在2．7～8．35mL范围，碱缓冲容量在21．05～42．00mL范围内变化；5种相思树人工林木材的酸、碱缓冲容量的变化曲线变化趋势大体相同。
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| 关 键 词： | 相思树木材 pH值 酸、碱缓冲容量 |
| 文章编号： | 1001-1498(2005)03-0342-03 |
| 收稿时间： | 2004-08-19 |
Study on the Difference of Chemical Properties among Five Acacia Woods Ⅱ. Study on pH Values and Buffering Capacities |
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| HUANG Luo-hua and QIN Te-fu. Study on the Difference of Chemical Properties among Five Acacia Woods Ⅱ. Study on pH Values and Buffering Capacities[J]. Forest Research, 2005, 18(3): 342-344 |
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| Authors: | HUANG Luo-hua and QIN Te-fu |
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| Affiliation: | Research Institute of Wood Industry, CAF, Beijing100091, China;Research Institute of Wood Industry, CAF, Beijing100091, China |
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| Abstract: | The pH values and buffering capacities for the five kinds of acacia woods(Acacia auriculaeformis,A.crassicarpa,A.cincinnata,A.mangium and A.melanoxylon) were investigated. The results were as follows: (1) there was a slight difference among the pH values of the woods, while a significant difference among the buffering capacities, the values ranged from 4.68 to 5.90;there was a significant difference in pH values between the sapwood and the heartwood of A. crassicarpa; (2) the acid buffering capacities in the woods changed between 2.70 mL and 8.35 mL, however,the base buffering capacities of the woods changed between 21.05 mL and 42.00 mL; (3) the curves of the buffering capacities in the woods were slightly different. |
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| Keywords: | acacia wood pH value buffering capacity |
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