Iron sulfate is cheap there because it’s available as a by-product of titanium dioxide production, which isn’t the case outside China, where most makers of the pigment use a different process. Frith says less-stringent environmental regulations in China can also reduce costs. Over the past few years, the core patents behind LFP manufacturing have expired, removing a barrier for non-Chinese companies interested in producing LFP.
by Matt Blois | January 29, 2023
Black and white inks, widely used for outlines, highlights, and shading, are made from the inorganic pigments carbon black and titanium dioxide, respectively. Most other inks owe their hues to organic pigments. Because these pigments are water insoluble by design, manufacturers add a cocktail of chemicals, such as glycerin and isopropyl alcohol, to solubilize these colorants and keep them shelf stable.
by Ariana Remmel | December 02, 2022
—EU partially reverses TiO₂ bans “” The European Union’s General Court has annulled a 2019 regulation that classified certain forms of titanium dioxide as a carcinogen and required hazard labeling on products that contain them. The rule affected formulations containing 1% or more of powdered TiO2 with particles 10 μm in diameter or smaller, especially in coatings, cosmetics, packaging, toys, and medicine.
by Craig Bettenhausen | December 01, 2022
At the same time, the FDA is threatening to pull approval for existing UV filters because of agency research showing that, other than zinc oxide and titanium dioxide, these compounds absorb into the bloodstream. UV filter ingredients are divided into two basic categories, inorganic and organic, also known as mineral and chemical.
by Craig Bettenhausen | November 27, 2022
The titanium alloy disk formed the crack through a process known as dwell fatigue. “We really thought we understood how these titanium alloys behave because we have been putting them in engines for 70 years,” says the AFRL’s Sean Donegan, a specialist in alloys and analytical methods. He notes that years ago, titanium-based disks failed on rare occasions for a different reason—as a result of an impurity, such as a microscopic tungsten particle, that formed in the disk’s titanium matrix. The impurity, which weakened the alloy and initiated its failure, likely came from tungsten electrodes that were used to melt the titanium during manufacturing. Donegan says the aerospace industry figured out how to fix that problem—for example, by modifying the way the electrodes were used. And airplane operators were confident that their inspection and maintenance methods would safely catch this problem at the earliest stage. “Then all of a sudden, around 10 years ago we started seeing failures in titanium disks before our first scheduled inspection,” when planes were new and thought to be free of potentially dangerous wear and tear, Donegan says. The dwell-fatigue problem that triggered the Airbus A380 damage has also been the cause of concern and investigation in some military planes. Dwell fatigue likely results from a specific arrangement of microscopic grains or crystallites in the titanium alloy referred to as a microtexture region. According to Donegan, this type of feature forms when a large group of adjacent grains aligns in roughly the same orientation and that grouping is abutted by a small grain aligned differently.
by Mitch Jacoby | November 27, 2022
Ineos already buys chlorine from Ashta as a raw material for its nearby titanium dioxide plant. And the Ashta plant recently upgraded its electrolysis process using Ineos’s Bichlor membrane cell technology. /business/inorganic-chemicals/Ineos-acquire-Ashta-Chemicals/100/i38 20221029 Concentrates 100 38 /magazine/100/10038.html Ineos will acquire Ashta Chemicals inorganic chemicals, mergers & acquisitions, Potassium hydroxide, chlorine, Ineos, Ashta con bus Michael McCoy business inorganic-chemicals business mergers-&-acquisitions Ashta Chemicals' plant has been operating since the early 1960s.
by Michael McCoy | October 29, 2022
And while the processes can print many different metals and alloys, they can currently handle only relatively soft ones, such as aluminum, copper, titanium, and stainless steel. Harder materials like high-strength steel present a challenge. Yu says the fundamental knowledge his group is gaining from process and microstructure analysis should help expand Meld’s repertoire.
by Prachi Patel, special to C&EN | October 18, 2022
Commercial white paints made of titanium dioxide nanoparticles reflect 80–90% of sunlight but absorb some heat, which reduces their benefits during daytime. Last year, Xiulin Ruan of Purdue University and colleagues made a cooling paint using barium sulfate nanoparticles that reflects most of the sun’s rays, thus radiating more infrared heat than it absorbs (ACS Appl.
by Prachi Patel, special to C&EN | October 06, 2022
In a press release, CEO Mark Newman blamed the firm’s titanium dioxide pigment business, where “we have experienced a continued decline in our demand outlook throughout the third quarter, most notably in Europe and Asia.” On Sept. 20, chlor-alkali maker Olin issued its second earnings downgrade of the quarter.
by Michael McCoy | September 22, 2022