It provides natural sun protection by blocking harmful UV rays, while its non-toxic nature ensures safe usage on human skin It provides natural sun protection by blocking harmful UV rays, while its non-toxic nature ensures safe usage on human skinBackground and overview
Globally, Iron Oxide is the second largest inorganic pigment after Titanium Dioxide and the first largest color inorganic pigment. Iron oxide pigments mainly include iron oxide red, yellow, black and brown with iron oxide as the basic material. Iron oxide yellow, also known as hydroxyl iron oxide (FeOOH), will be dehydrated and decomposed into red at about 177 ℃, so the application of ordinary iron yellow pigment in high-temperature occasions such as plastic processing and baking coatings is limited. Iron oxide yellow pigment can improve its temperature resistance through surface coating, so as to expand the application field of iron oxide yellow pigment.
The chemical formula of iron oxide yellow (also known as hydroxyl iron) is α- Fe2O3 · H2O or α- FeOOH, with needle like structure and yellow powder, is a kind of particle size less than 0.1 μ m. Iron series pigment with good dispersibility in transparent medium has strong coloring power, high covering power, insoluble in alkali and slightly soluble in ACID. Synthetic iron oxide yellow has the characteristics of light resistance, good dispersion, non-toxic, tasteless and difficult to be absorbed by human body. It is widely used in coatings, plastics, ink and pharmaceutical industry.
Physical and chemical properties and structure
1. Iron oxide yellow pigment has acid and alkali resistance, resistance to general weak and dilute acids, and is very stable in alkaline solution of any concentration.
2. Iron oxide yellow pigment has certain light resistance, heat resistance and weather resistance. Its coating color is durable and can keep the coating from being damaged in light. Iron oxide yellow pigment is stable in a certain temperature range, but beyond the limit temperature, its color begins to change, and the degree of change is more significant with the increase of temperature. Iron oxide yellow pigment is not affected by cold, heat, dry and wet weather conditions.
3. Iron oxide yellow pigment is very stable in any ambient atmosphere (such as gases containing H 2S, Co, so 2, HCl, no, etc.). And resistant to pollution, water, oil and solvent penetration, insoluble in water, mineral oil or vegetable oil.
4. Iron oxide yellow pigment has strong coloring power and high hiding power. With the decrease of pigment particle size, its coloring power is stronger.
application
Nano iron oxide yellow has the characteristics of acid resistance, alkali resistance, non toxicity and low price. It is widely used in coatings, plastics and rubber. The particle size of nano iron yellow is less than 100 nm, which makes it have some unique characteristics. When light shines on its surface, transmission and diffraction will occur, showing transparent yellow, and can strongly absorb ultraviolet rays, Therefore, it can be used as a functional pigment for the surface paint of high-grade cars, precision instruments, bicycles, motorcycles, cosmetics, food, drugs and other coloring additives.
china lithopone for plastic. It helps to prolong the service life of the plastic product and reduce the need for frequent replacements.
Import and export data
According to customs data, the cumulative import volume of titanium dioxide from January to November 2022 is about 116200 tons, a decrease of 34.06% over the same period last year, and the import volume is about 60000 tons; It is estimated that the annual import volume will be 120000 tons, about 70000 tons less than last year. The domestic market demand is weak, and the import of titanium dioxide in China has declined significantly. The new capacity of domestic chlorinated titanium dioxide increased, and the high-end titanium dioxide imported from abroad decreased accordingly.
According to customs data, from January to November 2022, the total export volume of titanium dioxide was about 1279100 tons, an increase of 8.58% over the same period last year, and the export volume increased by about 101100 tons. The export market maintained a stable and rising trend, and the annual export volume is expected to be 1.38 million tons. The export situation in the first half of the year was better than that in the second half, and the overall export market maintained an increasing trend.
Capacity output
According to public data, the cumulative output of titanium dioxide from January to November 2022 is about 3.5755 million tons, up 3% over the same period of last year, with an increase of about 96400 tons, and the annual output is expected to be 3.9 million tons. The enterprises that have increased the output of titanium dioxide this year are mainly, an increase of 11%
The output growth rate was 2%. This year, the newly launched enterprises CITIC Titanium Industry, Yibin Tianyuan, Shengwei Fuquan and Xianghai Titanium Industry had a significant increase in output compared with last year, and the output of more than 20 small and medium-sized enterprises in the market decreased by different degrees compared with last year.
Downstream terminal
From January to November, the national real estate development investment was 12386.3 billion yuan, down 9.8% year on year; Among them, the residential investment was 9401.6 billion yuan, down 9.2%.
From January to November, the housing construction area of real estate development enterprises was 8968.57 million square meters, down 6.5% year on year. Among them, the residential construction area was 6339.16 million square meters, down 6.7%. The newly started housing area was 1116.32 million square meters, down 38.9%. Among them, the newly started residential area was 817.34 million square meters, down 39.5%. The completed housing area was 557.09 million square meters, down 19.0%. Among them, the completed residential area was 404.42 million square meters, down 18.4%.
From January to November, the sales area of commercial housing was 1212.5 million square meters, down 23.3% year on year, including the residential sales area, down 26.2%. The sales volume of commercial housing was 11864.8 billion yuan, down 26.6%, of which the sales volume of residential housing was down 28.4%.
At the end of November, the area of commercial housing for sale was 55.203 million square meters, with a year-on-year growth of 10.0%. Among them, the residential area for sale increased by 18.0%.
From January to November, the paid in capital of real estate development enterprises was 13631.3 billion yuan, down 25.7% year on year. Among them, domestic loans amounted to 1582.3 billion yuan, down 26.9%; The utilization of foreign capital was 6.6 billion yuan, down 26.6%; Self raised funds amounted to 4899.4 billion yuan, down 17.5%; Deposit and advance receipts amounted to 4460.1 billion yuan, down 33.6%; Personal mortgage loans reached 2187 billion yuan, down 26.2%.
On the whole, affected by the economic pressure this year, the sales volume of real estate has gradually declined this year, and the national infrastructure investment index has also continued to decline. The demand growth of the downstream coating industry will slow down. At present, the purchase restriction policy of real estate has been cancelled, and in November, a trillion yuan of large state-owned banks rushed to help the real estate industry, which is good for the current market to a certain extent.
3. Future market forecast
According to the titanium dioxide analysts from the Chemical Branch of the Business Cooperative, the market price of titanium dioxide will fall sharply in 2022. Affected by the economic situation, the domestic market will be light, but the export market will remain good. The introduction of various favorable policies for real estate before the year will benefit the titanium dioxide market to some extent. It is expected that the titanium dioxide market will mainly maintain stable operation in the short term.
These manufacturers also work on enhancing the durability and performance of coatings, ensuring they can withstand harsh conditions and extend the lifespan of the coated surfaces These manufacturers also work on enhancing the durability and performance of coatings, ensuring they can withstand harsh conditions and extend the lifespan of the coated surfacescoating raw material manufacturer.Additionally, the growing emphasis on sustainability within the automotive industry influences the demand for environmentally friendly tire production methods. TiO2, being a non-toxic and eco-friendly compound, aligns with these sustainability goals, making it an attractive option for manufacturers looking to reduce their environmental footprint.
Traditionally, UV-filters are categorized as either chemical or physical. The big difference is supposed to be that chemical agents absorb UV-light while physical agents reflect it like a bunch of mini umbrellas on top of the skin. While this categorization is easy and logical it turns out it's not true. A recent, 2016 study shows that inorganic sunscreens work mostly by absorption, just like chemical filters, and only a little bit by reflection (they do reflect the light in the visible spectrum, but mostly absorb in the UV spectrum).
Prof. Matthew Wright, chair of EFSA’s working group on E171, noted: “Although the evidence for general toxic effects was not conclusive, on the basis of the new data and strengthened methods we could not rule out a concern for genotoxicity and consequently we could not establish a safe level for daily intake of the food additive.”
Because of its unique pigment and fine-milled texture, titanium dioxide has become popular over the past century in a wide variety of different products. These include adhesives, paints, plastics, rubbers, textiles, inks, ceramics, and even some pharmaceuticals, foods, and hygiene products.
1. Pigment and Food Coloring
The scattering efficiency of pigment particles in a system is governed by two key properties.
Potential hazards of oral exposure to TiO2 NPs
Though the regulated use of titanium dioxide in food products is legal in the U.S. and Canada, it's banned in some other countries, notably throughout Europe. In May 2021, the European Food Safety Authority announced that titanium dioxide can no longer be considered safe as a food additive.
The whole scientific experimental design in some of these studies is very flawed, Kaminski said.
