二酸化チタンは白です, 化学式TiO2を伴う無機化合物:
Properties
の融点があります 3,349 °F (1,843 ℃) との沸点 5,382 °F (2,972 ℃). It's insoluble in water, but mineral forms can appear black.
用途
It's used as a pigment in many products, 含む:
- Foods: As a color additive in bakery products and candy. It's not required to be listed on the ingredients label, but it must appear as "artificial color" または "colored with titanium dioxide".
- 化粧品: In some sunscreens, 化粧品, and art products.
- Other products: In paints, paper, プラスチック, ceramics, rubber, and inks.
Exposure
Humans can be exposed to titanium dioxide through inhalation, intravenous injection, dermal contact, or ingestion. Exposure can irritate the eyes, nose, and throat. The International Agency for Research on Cancer has classified titanium dioxide as a Group 2B carcinogen, which means it's a “possible carcinogen to humans”.
Safety
Titanium dioxide is considered safe to use in creams and lotions as a sunscreen, but you should avoid it in aerosolized (spray on) sunscreens. You should also avoid loose powders and blushes that contain titanium dioxide.
