Document np5mjyYZ68og2LbDbpozENpd6

1* - was most frequently the antioxidant monobenzyl ether of hydroquinone, which is used in the rubber adhesive in the combined linings-of the shoe. Some of these patients were specifically sensitive to other rubber anti oxidants and accelerators. -- Authors' Summary tie a rb 1eraHe r* . k t r.i & 1 j - .` gens the in r. i i ' Vi 964 Occupational Arsenical Dermatitis: A Study among Employees at a Copper-Ore Smelting Work, Including Investigations of the Skin Reaction to Contact with Arsenic Compounds. I. Holmquist. Acta dermatovenereol. M.* Supp. 26, 1-214 (1951). The sensitizing effect of several arsenic compounds was studied in employees of a copper-ore refinery by means of patch teBts. Positive reactions to pure arsenic trioxide were shown in 80.471 of arsenic workers, 35.2% of other employees, and 30.3% of new employees, independently of age groups. Ointments (50% arsenic trioxide) with antipyrene or alkaline base caused more positive reactions than those with petrolatum base. A 1% solution of disodium arsenite caused positive reactions only in sensi tized persons, but a 2% solution induced positive reactions in all cases. A 5% solution of arsenic pentoxide affected all persons, while a 2.5% affected only sensitized Individuals. Few positive reactions occurred with ' lead and calcium arsenates, on account of their low solubility.. Tests were also made with non-arsenical compounds in solution; 0.5% chromic acid, 0.1% mercuric chloride, 10% nickel sulfate, 5% silver nitrate, and 1% potassium dichromate caused only 1 to 4 positive reactions in a large number of tests. Sodium selenite and selenious acid in 0.5% solution failed to cause allergic reactions. Concentrations of selenious acid above ... 1% had pronounced toxic irritative effects. Corrosive reactions occurred ,.>/ with sulfuric acid in concentrations above 5%, independently of arsenic .; exposure. The factory operations are reviewed in detail, and statistics on arsenic sensitization in various operations are given. -- Cond. from Chero. Absts. . --'Mi 965 Harmful Effects on the Skin of Dichlorodiethylmethylamine (Nitrogen Mustard). M. Leder. Dermatologies 104, 176-179 (1952) German. Skin changes produced by nitrogen mustard gas were similar to those seen after exposure to ordinary mustard gas. Nitrogen mustard gas appeared to have_a_longer latent period and produced changes associated with increased sensiflvTtyr - - -- Chem. Absts.