Details:
purchase/buy Top High quality/High purity/Reliable quality titanium dioxide Rutile grade fast delivery in stock for factory/manufacturer in China
Basic Parameter:
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Name：
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Titanium Dioxide (TiO2)
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CAS NO.：
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13463-67-7
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EINECS NO.：
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236-675-5
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Color Index：
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77891, pigment white 6
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ISO591-1:2000：
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R2
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ASTM D476-84：
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II
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Appearance：
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White powder
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Specific gravity：
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4.0 g/cm3
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Surface treatment：
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alumina, silica + organic
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Technical Specifications：(Standard：Q/SNBJ1-2012)
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Property
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R909
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TiO2 content %
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≥93.0
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Rutile content %
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≥98.5
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Color (compared with standard sample)
L*(sample-standard sample)
s=(a2+b2)0.5
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Not lower than
≥-0.3
≤0.5
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Matter volatile at 105ºC %
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≤0.5
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Matter soluble in water %
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≤0.5
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Residue on sieve 45µm %
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≤0.1
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PH of aqueous suspension
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6.0-8.5
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Brightness %
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≥96
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Oil absorption g/100g
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≤21
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Tinting strength, Reynolds number
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≥1850
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Package:
25kg paper-plastic compound bag, or as clients' requests offer 500kg/1000kg big woven plastic bag.
Storage and Safety:
The product is a kind of white powder which is safe, nontoxic and harmless. Keep from moisture during transport and should be stored in a cool, ventilated, dry place. Avoid breathing duct when handling, and wash with soap & water in case of skin contact. For more details, please refer to the Material Safety Data Sheet.
titanium dioxide Rutile grade, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. Generally, it is sourced from ilmenite, rutile and anatase. It has a wide range of applications, including paint, sunscreen and food coloring. When used as a food coloring, it has E number E171. World production in 2014 exceeded 9 million metric tons. It has been estimated that titanium dioxide Rutile grade is used in two-thirds of all pigments, and the oxide has been valued at $13.2 billion.
factory/manufacturer introduce titanium dioxide Rutile grade Occurrence
titanium dioxide Rutile grade occurs in nature as the well-known minerals rutile, anatase and brookite, and additionally as two high pressure forms, a monoclinic baddeleyite-like form and an orthorhombic α-PbO2-like form, both found recently at the Ries crater in Bavaria. One of these is known as akaogiite is an extremely rare mineral. It is mainly sourced from ilmenite ore. This is the most widespread form of titanium dioxide Rutile grade-bearing ore around the world. Rutile is the next most abundant and contains around 98% titanium dioxide Rutile grade in the ore. The metastable anatase and brookite phases convert irreversibly to the equilibrium rutile phase upon heating above temperatures in the range 600–800 °C (1,112–1,472 °F).
titanium dioxide Rutile grade has eight modifications – in addition to rutile, anatase, and brookite, three metastable phases can be produced synthetically (monoclinic, tetragonal and orthorombic), and five high-pressure forms (α-PbO2-like, baddeleyite-like, cotunnite-like, orthorhombic OI, and cubic phases) also exist:
The cotunnite-type phase was claimed by L. Dubrovinsky and co-authors to be the hardest known oxide with the Vickers hardness of 38 GPa and the bulk modulus of 431 GPa (i.e. close to diamond's value of 446 GPa) at atmospheric pressure. However, later studies came to different conclusions with much lower values for both the hardness (7–20 GPa, which makes it softer than common oxides like corundum Al2O3 and rutile TiO2) and bulk modulus (~300 GPa).
The oxides are commercially important ores of titanium. The metal can also be mined from other minerals such as ilmenite or leucoxene ores, or one of the purest forms, rutile beach sand. Star sapphires and rubies get their asterism from rutile impurities present in them.
titanium dioxide Rutile grade (B) is found as a mineral in magmatic rocks and hydrothermal veins, as well as weathering rims on perovskite. TiO2 also forms lamellae in other minerals.
Molten titanium dioxide Rutile grade has a local structure in which each Ti is coordinated to, on average, about 5 oxygen atoms. This is distinct from the crystalline forms in which Ti coordinates to 6 oxygen atoms.
Spectral lines from titanium oxide are prominent in class M stars, which are cool enough to allow molecules of this chemical to form.
factory/manufacturer introduce titanium dioxide Rutile grade Production
The production method depends on the feedstock. The most common mineral source is ilmenite. The abundant Rutile mineral sand can also be purified with the chloride process or other processes. Ilmenite is converted into pigment grade titanium dioxide Rutile grade via either the sulfate process or the chloride process. Both Sulfate and Chloride Processes produce the titanium dioxide Rutile grade pigment in the rutile crystal form, but the Sulfate Process can be adjusted to produce the anatase form. Anatase, being softer, is used in fiber and paper applications. The Sulfate Process is run as a batch process; the Chloride Process is run as a continuous process.
Plants using the Sulfate Process require ilmenite concentrate (45-60% TiO2) or pretreated feedstocks as suitable source of titanium. In the sulfate process Ilmenite is treated with sulfuric acid to extract iron(II) sulfate pentahydrate. The resulting synthetic rutile is further processed according to the specifications of the end user, i.e. pigment grade or otherwise. In another method for the production of synthetic rutile from ilmenite the Becher Process first oxidizes the ilmenite as a means to separate the iron component.
An alternative process, known as the Chloride process converts ilmenite or other titanium sources to Titanium tetrachloride via reaction with elemental chlorine, which is then purified by distillation, and reacted with oxygen to regenerate chlorine and produce the titanium dioxide Rutile grade. titanium dioxide Rutile grade pigment can also be produced from higher titanium content feedstocks such as upgraded slag, rutile and leucoxene via a chloride acid process.
The five largest TiO
2 pigment processors are in 2019 Chemours, Cristal Global, Venator-Huntsman, Kronos and Tronox, which is the largest one. Major paint and coating company end users for pigment grade titanium dioxide Rutile grade include Akzo Nobel, PPG Industries, Sherwin Williams, BASF, Kansai Paints and Valspar. Global TiO
2 pigment demand for 2010 was 5.3 Mt with annual growth expected to be about 3-4%.
factory/manufacturer introduce titanium dioxide Rutile grade Specialized methods
For specialty applications, TiO2 films are prepared by various specialized chemistries. Sol-gel routes involve the hydrolysis of titanium alkoxides, such as titanium ethoxide:
Ti(OEt)4 + 2 H2O → TiO2 + 4 EtOH
This technology is suited for the preparation of films. A related approach that also relies on molecular precursors involves chemical vapor deposition. In this application, the alkoxide is volatilized and then decomposed on contact with a hot surface:
Ti(OEt)4 → TiO2 + 2 Et2O
factory/manufacturer introduce titanium dioxide Rutile grade Applications
The most important application areas are paints and varnishes as well as paper and plastics, which account for about 80% of the world's titanium dioxide Rutile grade consumption. Other pigment applications such as printing inks, fibers, rubber, cosmetic products and food account for another 8%. The rest is used in other applications, for instance the production of technical pure titanium, glass and glass ceramics, electrical ceramics, catalysts, electric conductors and chemical intermediates.
factory/manufacturer introduce titanium dioxide Rutile grade Pigment
titanium dioxide Rutile grade is the most widely used white pigment because of its brightness and very high refractive index, in which it is surpassed only by a few other materials. (see List of indices of refraction.) titanium dioxide Rutile grade crystal size is ideally around 220 nm (measured by electron microscope) to optimize the maximum reflection of visible light. The optical properties of the finished pigment are highly sensitive to purity. As little as a few parts per million (ppm) of certain metals (Cr, V, Cu, Fe, Nb) can disturb the crystal lattice so much that the effect can be detected in quality control. Approximately 4.6 million tons of pigmentary TiO2 are used annually worldwide, and this number is expected to increase as utilization continues to rise.
TiO2 is also an effective opacifier in powder form, where it is employed as a pigment to provide whiteness and opacity to products such as paints, coatings, plastics, papers, inks, foods, medicines (i.e. pills and tablets) as well as most toothpastes. In paint, it is often referred to offhandedly as "brilliant white", "the perfect white", "the whitest white", or other similar terms. Opacity is improved by optimal sizing of the titanium dioxide Rutile grade particles.
factory/manufacturer introduce titanium dioxide Rutile grade Thin films
When deposited as a thin film, its refractive index and colour make it an excellent reflective optical coating for dielectric mirrors; it is also used in generating decorative thin films such as found in "mystic fire topaz".
Some grades of modified titanium based pigments as used in sparkly paints, plastics, finishes and cosmetics - these are man-made pigments whose particles have two or more layers of various oxides – often titanium dioxide Rutile grade, iron oxide or alumina – in order to have glittering, iridescent and or pearlescent effects similar to crushed mica or guanine-based products. In addition to these effects a limited colour change is possible in certain formulations depending on how and at which angle the finished product is illuminated and the thickness of the oxide layer in the pigment particle; one or more colours appear by reflection while the other tones appear due to interference of the transparent titanium dioxide Rutile grade layers. In some products, the layer of titanium dioxide Rutile grade is grown in conjunction with iron oxide by calcination of titanium salts (sulfates, chlorates) around 800 °C One example of a pearlescent pigment is Iriodin, based on mica coated with titanium dioxide Rutile grade or iron (III) oxide.
The iridescent effect in these titanium oxide particles is unlike the opaque effect obtained with usual ground titanium oxide pigment obtained by mining, in which case only a certain diameter of the particle is considered and the effect is due only to scattering.
factory/manufacturer introduce titanium dioxide Rutile grade Sunscreen and UV blocking pigments
In cosmetic and skin care products, titanium dioxide Rutile grade is used as a pigment, sunscreen and a thickener. As a sunscreen is used ultrafine TiO2, it is notable in that combined with ultrafine zinc oxide, it is considered to be an effective sunscreen that is less harmful to coral reefs than sunscreens that include chemicals such as oxybenzone and octinoxate.
Nanosized titanium dioxide Rutile grade is found in the majority of physical sunscreens because , its strong UV light absorbing capabilities and its resistance to discolouration under ultraviolet light. This advantage enhances its stability and ability to protect the skin from ultraviolet light. Nano-scaled (particle size of 20–40 nm) titanium dioxide Rutile grade particles are primarily used in sunscreen lotion because they scatter visible light much less than titanium dioxide Rutile grade pigments, and can give UV protection. Sunscreens designed for infants or people with sensitive skin are often based on titanium dioxide Rutile grade and/or zinc oxide, as these mineral UV blockers are believed to cause less skin irritation than other UV absorbing chemicals. Nano-TiO2 blocks both UV-A and UV-B radiation, which is used in sunscreens and other cosmetic products. It safe to use and it is better to environment than organic UV-absorbers.
TiO2 is used extensively in plastics and other applications as a white pigment or an opacifier and for its UV resistant properties where the powder disperses light – unlike organic UV absorbers – and reduces UV damage, due mostly to the particle's high refractive index.
factory/manufacturer introduce Other uses of titanium dioxide Rutile grade
In ceramic glazes titanium dioxide Rutile grade acts as an opacifier and seeds crystal formation.
It is used as a tattoo pigment and in styptic pencils. titanium dioxide Rutile grade is produced in varying particle sizes, oil and water dispersible, and in certain grades for the cosmetic industry.