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Vegetable parchment

Lead arsenite is readily obtained by an electrolytic process.6 The eatholyte may be a 15 per cent, solution of sodium hydroxide or of a sodium salt, or a 30 per cent, solution of potassium hydroxide, the cathode being of nickel. The anolyte is a solution of an alkali arsenite neutralised towards phenolphthalein by means of acetic acid, and the anode is of lead. The cathode space is separated by a diaphragm of vegetable parchment. Ormont obtained a current yield of 97 per cent., and the average energy yield amounted to 1 kg. per kilowatt-hour. [Pg.169]

Hough, USP 18220290 (1931) CA 25, 5992 (I93I) (Colloidal expls based on jellies obtd by colloiding vegetable parchment with NG) 2a)A.F.York, USP 1978070 (1934) CA 29. [Pg.178]

Vegetable parchment paper is made by a process of treating the absorbent paper with sulphuric acid, which enhances the wet strength of the paper. This is the most water-resistant paper of all. It is usually used for dressing packs. It has good resistance to fats and greases. [Pg.111]

Membranes suitable for dialysis include vegetable parchment, animal parchment, gold beater s skin (peritoneal membrane of cattle), fish bladders, collodion and cellophane. [Pg.378]

Buckton and Hofmann obtained acetamide by heating ethyl acetate and concentrated ammonia in a sealed tube, and by distilling acetamide with phosphorus pentoxide they obtained acetonitrile (see Dumas, p. 505). J. Blyth and Hofmann investigated styrene (styrole) and prepared several of its derivatives (see p. 563). Hofmann" investigated the vegetable parchment obtained by Warren De la Rue by the action of concentrated sulphuric acid on paper. [Pg.442]

Solid binders board Pressboard Vegetable parchment Leathers... [Pg.383]

Insulating board Filter paper Blotting paper Newsprint paper Antique book board Lined strawboard Supercalendered book paper Tagboard Bond paper Railro board Solid binders board Press board Vegetable parchment... [Pg.409]

Vegetable Parchment (Parchment) A grease and water resistant paper made by passing unsized paper through sulfuric acid to gelatinize the surface. [Pg.29]

See other pages where Vegetable parchment is mentioned: [Pg.596]    [Pg.173]    [Pg.333]    [Pg.178]    [Pg.120]    [Pg.120]    [Pg.177]    [Pg.73]    [Pg.264]    [Pg.383]    [Pg.391]    [Pg.356]    [Pg.7167]    [Pg.139]    [Pg.297]    [Pg.383]    [Pg.442]    [Pg.457]    [Pg.458]    [Pg.458]   
See also in sourсe #XX -- [ Pg.73 ]



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