Titanium Dioxide Anatase · Bright White Pigment & Opacifier for Food, Pharma & Supplements

Key characteristics

• Chemical name: Titanium dioxide, anatase crystal form.
• Appearance: white, fine powder, typically with a neutral to slightly bluish undertone for clean, bright white or pastel shades.
• Crystal form: predominantly anatase, selected for specific coating and confectionery applications.
• Surface treatment (where applicable):
  • Some grades incorporate mineral surface treatments (e.g. alumina, silica) to improve dispersion, suspension stability and photostability,
  • Surface treatment type and level are defined in the grade-specific specification.
• Particle size distribution:
  • Optimised PSD provides a balance between opacity, gloss, flow and suspension rheology,
  • Typical median particle sizes are selected for sugar shells, film coatings, capsule compounds and decorative systems.
• Functional properties:
  • Whitening and masking – helps cover core and substrate colour variations,
  • Opacification – increases opacity in coatings, shells and suspensions,
  • Colour base – serves as a white base for pastel and opaque coloured systems when combined with permitted colourants.
• Grades & comparison with rutile:
  • Atlas offers both anatase and rutile TiO₂ grades for suitable markets,
  • Rutile titanium dioxide may be preferred where maximum opacity and photostability are required, while anatase can be selected for specific appearance and processing needs.

Our technical team works with customers to choose between anatase and rutile TiO₂ grades, considering regulatory environment, appearance targets, coating system design and processing equipment.

Indicative specification points

Final specifications are agreed per grade and producer, aligned with relevant food/pharma/nutraceutical standards. Typical anatase titanium dioxide parameters include:

• TiO₂ content: generally ≥ 98.0% on dry basis (excluding surface treatment if present).
• Crystal form: predominantly anatase, confirmed via appropriate analytical methods.
• Whiteness & colour indices: controlled via whiteness measurements and L*, a*, b* or equivalent metrics.
• Particle size distribution: defined values for D₅₀, D₉₀, etc., matched to coating and confectionery processes.
• Loss on drying / loss on ignition: limited to ensure stable handling and quality.
• pH (aqueous slurry): maintained within a defined range to support dispersion and coating stability.
• Water-soluble and acid-soluble substances: within limits set by applicable purity criteria.
• Heavy metals & selected elements: restricted in line with food/pharma/nutraceutical guidelines.
• Microbiological profile: low counts consistent with inorganic pigment production under GMP/GHP.

Each batch is accompanied by a Certificate of Analysis (COA) and a technical data sheet. Additional documentation (GMO and allergen statements, country of origin, contaminant profiles, dietary suitability, residual solvent declarations, Halal/Kosher certificates, etc.) is available depending on grade and destination markets.

Food & confectionery applications*

• Sugar-coated confectionery & dragees* – provides a white, opaque base for pastel or intense colours in sugar shells and coatings.
• Chewing gum & pellet coatings* – supports clean white or tinted gum coatings with good opacity and uniformity.
• Bakery decorations & toppings* – used in icings, decorative coatings and sugar decorations where a bright white or pastel finish is desired.
• Decorative inclusions* – selected use in sprinkles, decorative chips and coated inclusions for snacks and desserts, where allowed.

*Food use depends on national and regional decisions on E171. In certain jurisdictions, food uses may be restricted, limited to specific categories or not permitted. Regulatory teams must verify up-to-date rules.

Pharmaceutical & nutraceutical applications*

• Tablet cores and coatings* – anatase TiO₂ is used as a white pigment and opacifier in tablet cores or film coatings to achieve a uniform look and support brand identity.
• Hard and soft capsule shells* – contributes to white or pastel capsule colours and helps mask fill colour variability where authorised.
• Oral suspensions & liquid preparations* – can serve as an opacifier to improve the visual appearance of liquid formulations, subject to regulatory and technical constraints.

*Pharmaceutical and nutraceutical uses are guided by pharmacopoeial monographs, marketing authorisations and risk assessments. Some markets may define specific conditions for titanium dioxide use in medicines and supplements.

Formulation & processing guidance

• Dosage & regulatory limits:
  • Use levels are typically low, set by appearance targets (opacity, whiteness) and regulatory ceilings,
  • Regulatory teams must confirm permitted levels for E171 or titanium dioxide in each product category and market.
• Coating systems & suspensions:
  • Dispersed in film-former solutions or sugar syrups together with plasticisers, anti-tack agents and colourants,
  • Requires appropriate milling or dispersion equipment to avoid agglomeration and ensure smooth, defect-free coatings.
• Compatibility & interactions:
  • Compatible with most cellulosic film formers, acrylic polymers, sugars, polyols and capsule shell matrices,
  • Should be evaluated alongside other pigments, opacifiers, flavours and actives to ensure stability, colour consistency and product performance.
• Choice between anatase and rutile:
  • Anatase may be selected for specific whiteness/appearance or processing needs,
  • Rutile (see Titanium Dioxide Rutile) may be preferred where maximum opacity and photostability are critical.
• Regulatory & consumer perspectives:
  • Titanium dioxide usage is part of ongoing scientific and regulatory discussion,
  • Brand owners may select formulations that include or exclude TiO₂ based on risk assessments, legislation and consumer expectations.

Quality & documentation

• Supplied as food-grade and/or pharmaceutical/nutraceutical-grade anatase titanium dioxide, depending on project scope and regulatory requirements.
• Each lot is provided with a Certificate of Analysis (COA) and a technical data sheet specifying TiO₂ content, crystal form, PSD, whiteness, pH, loss on ignition and impurity limits.
• Additional documents can include GMO and allergen statements, origin details, heavy metals and contaminants data, dietary suitability statements, residual solvent declarations and Halal/Kosher certificates where applicable.
• Production sites generally operate under recognised ISO, GMP and food safety management systems; certificates and audit support may be supplied on request.
• Customers remain responsible for confirming current regulatory status, authorised uses, maximum levels, pharmacopoeial compliance and labelling requirements in each destination market.

Packaging, storage & logistics

• Standard packaging: typically 25 kg multi-wall paper bags or fibre drums with inner liners providing protection against moisture and contamination.
• Suitable for full-container or mixed-container loads together with other antioxidants, colourants, preservatives, vitamins, sweeteners, thickeners and functional ingredients from the Atlas portfolio.
• Store in a cool, dry place, in tightly closed original packaging, away from moisture, strong odours and direct sunlight to preserve flow and whiteness.
• The typical shelf life is indicated on the product specification and COA; customers should confirm colour stability, opacity and coating performance in their own processes and packaging formats.
• Shipments can be arranged under FOB, CFR, CIF or other agreed Incoterms, with export, customs and quality documentation coordinated from Ankara, Türkiye.

For a tailored quotation, please share your target applications (confectionery, bakery decorations, chewing gum, tablets, capsules, nutraceuticals, etc.), coating system details (film-former type, solvent system, equipment), desired whiteness/opacity, regulatory landscape, annual volume, packaging preferences and documentation/certification needs (pharmacopeial monographs, Halal, Kosher, non-GMO, specific contaminant limits, etc.). Our team will recommend suitable anatase titanium dioxide grades and coating/colour system concepts aligned with your technical and regulatory objectives.