{"id":6658,"date":"2020-10-07T14:51:22","date_gmt":"2020-10-07T12:51:22","guid":{"rendered":"https:\/\/dana.ggiants.de\/wissen\/materialien\/titanium-dioxide\/"},"modified":"2026-02-05T11:43:27","modified_gmt":"2026-02-05T10:43:27","slug":"titanium-dioxide","status":"publish","type":"element","link":"https:\/\/materialneutral.info\/en\/element\/titanium-dioxide\/","title":{"rendered":"Titanium Dioxide"},"content":{"rendered":"<p style=\"text-align: left;\">Titanium dioxide may have catalytic properties, e.g. by breaking down dirt with the help of sunlight. Titanium dioxide nanoparticles are contained in sun creams and special wall paints, among other things. Therefore, people can come into contact with them primarily via the skin. Titanium dioxide is no longer authorised as a food additive. There is no recognisable exceptional risk from the nanoform in particular.<\/p>\n<h4>How can I come into contact with this material?<\/h4>\n<p style=\"text-align: left;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-24339\" src=\"https:\/\/materialneutral.info\/wp-content\/uploads\/2020\/10\/Kind-Strand-Sonnencreme_MarKord-adobestock-300x200.jpg\" alt=\"Source MarKord_stock.adobe.com\" width=\"350\" height=\"233\" srcset=\"https:\/\/materialneutral.info\/wp-content\/uploads\/2020\/10\/Kind-Strand-Sonnencreme_MarKord-adobestock-300x200.jpg 300w, https:\/\/materialneutral.info\/wp-content\/uploads\/2020\/10\/Kind-Strand-Sonnencreme_MarKord-adobestock-1024x682.jpg 1024w, https:\/\/materialneutral.info\/wp-content\/uploads\/2020\/10\/Kind-Strand-Sonnencreme_MarKord-adobestock-768x512.jpg 768w, https:\/\/materialneutral.info\/wp-content\/uploads\/2020\/10\/Kind-Strand-Sonnencreme_MarKord-adobestock-1536x1024.jpg 1536w, https:\/\/materialneutral.info\/wp-content\/uploads\/2020\/10\/Kind-Strand-Sonnencreme_MarKord-adobestock.jpg 2000w\" sizes=\"(max-width: 350px) 100vw, 350px\"\/>By applying sunscreen to your skin you also apply titanium dioxide nanoparticles. These particles however do not pass through healthy or sunburnt skin. Wounds however should be treated with wound ointment instead. Self-cleaning wall paints contain&#xA0;Titanium dioxide nanoparticles which are fixed within the paintwork after drying, thus humans do not get exposed to these particles. In addition, titanium dioxide contained in tiles, flagstones and solar panels are also present in a bound manner. As there are no titanium dioxide nanoparticles released during the day-to-day use it is highly unlikely for these particles to enter the human body.<\/p>\n<p style=\"text-align: left;\">However, in all major applications the bound titanium dioxide nanoparticles may eventually leach out into the environment, but negative effects for humans or wildlife have shown so far for only very high doses or concentrations. Nevertheless, this requires further research.<\/p>\n<h4>Is there any risk from this material to humans and the environment?<\/h4>\n<p style=\"text-align: left;\">Titanium dioxide is <span class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_cc620b51ff25781d3b94409bfe1fb7a5\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>toxic<\/span> in very large concentrations. This means that inhalation of titanium dioxide particles, as for all dusty particles, should be avoided. Damage to the lungs after high doses has been proven in animal experiments. These and other studies have also led to titanium dioxide no longer being permitted as a food colorant (E&nbsp;171) in the EU as of August 2022; this ban does not apply to drugs or other medical applications.<\/p>\n<h4 style=\"text-align: left;\">Conclusion<\/h4>\n<p>Titanium dioxide nanoparticles do not enter the human body through intact skin. In other applications than sunscreen the nanoparticles are generally not free to move, because they are firmly bound in a matrix.<\/p>\n<h6>By the way&#x2026;<\/h6>\n<h6>All grinding work causes dust which always contains a certain amount of nanoparticles regardless of whether the ground material previously did contain any nanoparticle. The amount of particles in the air (dust) can be reduced by wet grinding, which also reduces the generation of nanoparticles.<\/h6>\n","protected":false},"excerpt":{"rendered":"<p>Titanium dioxide may have catalytic properties, e.g. by breaking down dirt with the help of sunlight. 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