Process for the preservation of wood and the like so that the preserving substance cannot be washed out

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专利权人:

RICHARD FALCK

发明人:

申请号：

GB19310022104

公开号：

GB377441(A)

申请日:

1931.08.04

申请国别(地区):

英国

年份:

1932

代理人:

摘要：

377,441. Preserving wood. FALCK, R., 75, Veckerhagenerstrasse, M??nden, Hanover, Germany. Aug. 4, 1931, No. 22104. [Class 140.] Wood, cellulose, straw and other fibrous materials are preserved by impregnation with aqueous solutions of arsenic compounds, together with chromic acid, chromates or bichromates, in such proportions as to render the arsenic compound insoluble and to prevent it from being washed out by water. The proportions specified are one part of arsenic acid and 1??25-1??75 parts of potassium bichromate in 100 parts of water.

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