When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Titanium dioxide nanoparticle - Wikipedia

   en.wikipedia.org/wiki/Titanium_dioxide_nanoparticle

   It is in rutile crystal structure and coated with silica or/and alumina to prevent photocatalytic phenomena. The health risks of ultrafine TiO 2 from dermal exposure on intact skin are considered extremely low, [1] and it is considered safer than other substances used for ultraviolet protection. However titanium dioxide is a known carcinogen. [2]

3. Titanium dioxide - Wikipedia

   en.wikipedia.org/wiki/Titanium_dioxide

   Titanium dioxide, also known as titanium(IV) oxide or titania / t aɪ ˈ t eɪ n i ə /, is the inorganic compound derived from titanium with the chemical formula TiO 2 . When used as a pigment , it is called titanium white , Pigment White 6 ( PW6 ), or CI 77891 . [ 4 ]

4. Health and safety hazards of nanomaterials - Wikipedia

   en.wikipedia.org/wiki/Health_and_safety_hazards...

   1.0 μg/m 3 for carbon nanotubes and carbon nanofibers as background-corrected elemental carbon as an 8-hour time-weighted average (TWA) respirable mass concentration [9]: x, 43 300 μg/m 3 for ultrafine titanium dioxide as TWA concentrations for up to 10 hr/day during a 40-hour work week [10]: vii, 77–78

5. Sunscreen - Wikipedia

   en.wikipedia.org/wiki/Sunscreen

   The SPF is an imperfect measure of skin damage because invisible damage and skin malignant melanomas are also caused by ultraviolet A (UVA, wavelengths 315–400 or 320–400 nm), which does not primarily cause reddening or pain. Conventional sunscreen blocks very little UVA radiation relative to the nominal SPF; broad-spectrum sunscreens are ...

6. Nanochemistry - Wikipedia

   en.wikipedia.org/wiki/Nanochemistry

   Nanochemistry is an emerging sub-discipline of the chemical and material sciences that deals with the development of new methods for creating nanoscale materials. [1] The term "nanochemistry" was first used by Ozin in 1992 as 'the uses of chemical synthesis to reproducibly afford nanomaterials from the atom "up", contrary to the nanoengineering and nanophysics approach that operates from the ...

7. The Truth About Titanium Dioxide, the Food Additive Found in ...

   www.aol.com/truth-titanium-dioxide-food-additive...

   For premium support please call: 800-290-4726 more ways to reach us