Fregert S, Gruvberger B, Sandahl E
Contact Dermatitis. 1979 Jan;5(1):39-42. doi: 10.1111/j.1600-0536.1979.tb05533.x.
Cement dermatitis is connected with chromate sensitivity. It can therefore be expected that "elimination" of chromate in cement would decrease the number of cases of cement dermatitis. Iron sulfate added to cement reduces the chromate completely and the 3-valent chromium is precipitated. An amount of 0.35% (w/w) iron sulfate, FeSO4 . 7H2O, is enough to reduce 20 microgram Cr6+/g cement. There is no technical side effect to the concrete. The iron sulfate is preferably added to cement when there is an intimate contact with skin, e.g. at floor laying, repairs and hand-made casting.
水泥性皮炎与铬酸盐过敏有关。因此可以预期，水泥中铬酸盐的“去除”将减少水泥性皮炎的病例数量。添加到水泥中的硫酸铁可完全还原铬酸盐，三价铬会沉淀下来。0.35%（重量/重量）的七水合硫酸亚铁（FeSO₄·7H₂O）足以将每克水泥中的20微克六价铬还原。对混凝土没有技术方面的副作用。在与皮肤有密切接触的情况下，例如在铺设地板、维修和手工浇铸时，最好将硫酸铁添加到水泥中。
