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タイトルヨミ
モクザイ ノ pH ニ カンスル ケンキュウ ダイ3ホウ カクシュ モクザイ ノ pH ト オセン ニツイテ
タイトル別表記
Studies on the pH Value of Wood(III) : On the pH Values of Various Woods and the Staining
ファイル
言語
日本語
著者
後藤 輝男
往西 弘次
内容記述(抄録等)
There were measured the pH values of 120 species of Japanese wood, tropical wood and wood-based materials (laimnated wood of Birch and hardboard) and others by using the filtrate which was obtained from the mixture of 3 grs. of wood flour(air-dried condition) and 50 grs. of distilled water, with a pH meter with glass and calomel electrodes.
The list for these pH values were made on the basis of family and genus. (Tables 1, 2 and 3) Greater parts of the examined wood showed weak acidity as clear from the list. Particulary, wood showing from pH 5.0 to 6.0 accounted for 52.7% of all measured wood . (Fig. 1)
In Japanese wood, relatively low pH value was observed in Quercus (PH 4.6-4.9), and Ulmus gave the highest pH value (pH 7.0). (Table 1) Eucalyptus of tropical wood showed relatively low pH value (pH 4.3-4.9). The pH value of Dipterocarpaceae such as Apitong, Red lauan, White lauan and Meranti, was distributed mainly in the range of 5.0 and 6.0. (Table. 2)
In addition, the relation between the pH value of wood and its staining with ferric chloride on cross, radial and tangential sections was investigated. The staining with ferric chloride decreased in cross, radial and tangential section in this order. (Tables 1, 2 and 3) There was relation between the pH value of wood and its staining with ferric chloride in Japanese wood. On the other hand, there was no relation in tropical wood (Fig. 2 and 3) In Japanese wood, the most extensive staining was observed on Quercus, particulary Kashiwa (Q. dentata Thunb.).
掲載誌名
島根農科大学研究報告
15
開始ページ
(A-2)80-88
ISSN
05598311
発行日
1967-01-31
NCID
AN00108241
出版者
島根農科大学
出版者別表記
The Shimane Agricultural College
資料タイプ
紀要論文
部局
島根大学
備考
A,Bを含む
開学十五周年記念号(Commemoration Issue for the 15th Aniversary)
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