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In 2005–06, potassium dichromate was the 11th-most-prevalent allergen in patch tests (4.8%). [12] Potassium dichromate is one of the most common causes of chromium dermatitis; [13] chromium is highly likely to induce sensitization leading to dermatitis, especially of the hand and forearms, which is chronic and difficult to treat ...
A patch test relies on the principle of a type IV hypersensitivity reaction.. The first step in becoming allergic is sensitization. When skin is exposed to an allergen, the antigen-presenting cells (APCs) – also known as Langerhans cell or Dermal Dendritic Cell – phagocytize the substance, break it down to smaller components and present them on their surface bound major histocompatibility ...
Cane reed (causing chelitis in saxophone players), propolis (a wax used to close structural gaps in musical instruments), paraphenylenediamine (used to polish musical instruments) and potassium dichromate (tanning agent to the skin of the harp) also cause allergic contact dermatitis in musicians. [1]
The chromic acid is usually made by acidifying (with sulfuric acid) a solution of potassium dichromate. The old name for potassium dichromate is potassium bichromate and the cell is often called a bichromate cell. [1] This type of cell is now only of historical interest.
Potassium dichromate. Chrome platers, chrome polishers Sodium bichromate, chromic acid, potassium chromate. Nickel platers Nickel sulphate. Platinum chemists Chloroplatinic acid. Platinum refiners Platinum salts. Polyurethane foam manufacturers, printers, laminators Diphenylmethane diisocyanate. Rubber workers Naphthalene diisocyanate. Tungsten ...
Propylene glycol skin sensitization occurred in patients sensitive to a number of other concomitant positive allergens, most common of which were: Myroxylon pereirae resin, benzalkonium chloride, carba mix, potassium dichromate, neomycin sulfate; for positive propylene glycol reactions, the overall median of 5 and mean of 5.6 concomitant ...
Zenker is usually made with 50g of mercuric chloride, 25g of potassium dichromate, 10g of sodium sulfate (decahydrate) and distilled water to complete 1000 ml. Before use, 5 ml glacial acetic acid is added to 100 ml of the solution. Both the stock solution and the complete Zenker fixative are stable for many years.
Hexavalent chromium, also called chromium(VI), is hemotoxic, genotoxic, and carcinogenic. [4] When hexavalent chromium enters the bloodstream, it damages blood cells by causing oxidation reactions.
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