Titanium Dioxide

Titanium Dioxide

TIOXIDE® A-High Purity Pigment is produced by Huntsman Pigments. High value applications serviced by this product include Food, Drug and Cosmetic.

TYPICAL APPLICATIONS

• TIOXIDE® A-High Purity Pigment | Food, Drug, Cosmetic

HUNTSMAN Titanium Dioxide for cosmetics, pharmaceuticals and food additives, formerly known as TIOXIDE® A-HR Select Grade, is offered as Kowet™ by HUNTSMAN exclusive supply partner SENSIENT.

Technical Information

• Regulatory Info: 21 CFR Section 73.575, 73.1575 and 73.2575
• Major Sources: Certain Ores
• Shade: Bright White
• Light Stability: Excellent
• Heat Stability: Excellent
• Properties: A brilliant white pigment with many uses.
• Applications: Pharmaceuticals (tablet coatings, compressed tablets); cosmetics (rouge, eyeshadow, oil-based foundations); food (candies, icings, pet food); low- and no-fat products such as coffee creamers, salad dressings, cheese, confections and baked goods.

Source And Processing

Titanium Dioxide is manufactured in two crystal forms: Rutile and anatase. Rutile possesses a more compact atomic structure which provides a higher refractive index (greater opacity) of 2.76 and improved stability. For this reason, rutile Titanium Dioxide fulfills 80% of the world’s requirements. Anatase, on the other hand, is softer, less abrasive and still preferred in food, drug and cosmetic uses. Titanium Dioxide is obtained primarily from slag by two different processes: Sulfate and chloride. The slag is treated with sulfuric acid, and later, the resultant titanyl sulfate is hydrolysed to form a hydrate which is calcined at 1000°C to form Titanium Dioxide. Both the sulfate and the chloride process produce rutile crystalline forms, but only the sulfate process produces anatase Titanium Dioxide, the form that is preferred for food, drug and cosmetic use.

Regulatory Status

Titanium Dioxide has been used in foods, drugs and cosmetics since at least 1938. It was provisionally listed in the 1960 Color Additive Amendment and was permanently listed in 1963. Its use is regulated

under one of the following sections of the Code of Federal Regulations, CFR Title 21:

• Section 73.575-Foods
• Section 73.1575-Drugs
• Section 73.2575-Cosmetics

It is permitted in drugs and cosmetics, including use in the area of the eye without limitation. Titanium Dioxide’s use is restricted to 1% by weight in foods, however. It is also approved in most countries, many of which use the WHO/FAO specification as published in FAO Food & Nutrition Paper No. 52/1 and Z.