Symptoms include skin ulcers and irritation, and allergic contact dermatitis. Symptoms of exposure to airborne hex chrome include sinus irritation, nosebleeds, shortness of breath, wheezing, and perforation of the tissue between nostrils of the nose.Īdverse effects to hex chrome due to dermal exposure can also occur. National Institute for Occupational Safety and Health (NIOSH), hexavalent chrome is “a well-established occupational carcinogen associated with lung cancer and nasal and sinus cancer.” The most common form of hex chrome exposure is through inhalation of dust, mists or fumes. Health Effects of Hexavalent ChromiumĪccording to the U.S. Other uses of chromium include chromate pigments in paints, textile dyes and printing inks, as well as leather tanning and wood preservatives. Shiny metallic bumpers on older cars are an example of chrome plating.įor aluminum parts, the chromium in a chromate conversion coating (also called chem film) adds significant corrosion resistance and other benefits. Metal parts can achieve a shiny polished look that resists corrosion through electroplating with chromic acid. The high temperature can lead to oxidation and convert the chrome to the hazardous hexavalent chrome.Īnother primary use of chromium is in chrome plating. Though the metallic chrome in stainless steel is non-toxic, it may transform into hex chrome during “hot work” such as welding. When metallic chromium is added to steel, the resulting stainless steel is significantly more resistant to corrosion. The most common use of chromium is in the formation of stainless steel. In contrast, trivalent chromium is non-toxic, and is considered an essential dietary mineral in low doses for normal metabolism. Hexavalent chromium is toxic and a known carcinogen, and its use is highly regulated. Metallic chromium (Cr 0) – Least common.Hexavalent chromium compounds (Cr VI) – Less common most hex chrome is produced through industrial processes.Trivalent chromium compounds (Cr III) – Most common.Hexavalent chromium compounds contain the element chromium in the +6 oxidation state.Ĭhromium occurs naturally in the environment in three oxidation states: Other names for hex chrome include chromium(VI), chrome VI, chromium 6, chromium(6+) and Cr VI. Chromium is especially useful for its corrosion resistance, hardness and durability. Often referred to as hex chrome, hexavalent chromium is a form of the metallic element chromium, commonly used in manufacturing. Trivalent Chromium – TCP-HF and eTCP Price and Ordering
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