In recent days, the potential for titanium dioxide to lead to “murder” hot things extraordinary.
Defendant: Titanium Dioxide
Titanium dioxide known as titanium dioxide, the molecular formula of TiO2, is a polycrystalline compound, the particles were arranged in a regular manner, with a lattice structure. With excellent optical, electrical properties, the best opacity, whiteness, brightness, the world recognized as the best performance of a white pigment.
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The defendant:
According to the ECHA Risk Assessment Board (RAC), available scientific evidence suggests that the carcinogenic potential of titanium dioxide meets the relevant criteria for ECHA under the Classification, Labeling and Packaging Regulations (CLP).
On June 9, 2017, the European Chemicals Agency (ECHA) announced that it has formally proposed the inclusion of titanium dioxide (TiO2, titanium dioxide) in suspicion of inhalation of substances that may cause cancer, which will be published later The program was announced or formally adopted at the September meeting of the European Commission.
The seriousness of the matter:
Titanium dioxide is widely used in papermaking, paint coatings, cosmetics, plastics and other fields, of which more than half of the paint market. In 2016, the paint and coatings industry accounted for 57.4% of the global titanium dioxide industry sales. The use of titanium dioxide can greatly reduce the amount of paint in the paint, while the paint is made of colorful, not yellowing, light, heat, wear, weather, alkali, sulfur, resistant to acid. Titanium dioxide consumption accounted for more than 90% of the total paint pigment, accounting for more than 95% of paint with white pigment. In the paint raw material costs accounted for 10% to 25%.
According to the latest market research, due to the growing demand in the fields of papermaking, paint and coatings, cosmetics and plastics, it is expected that the global market price of titanium dioxide will reach US $ 27.99 billion by 2024.
Titanium dioxide plays a decisive role, involving deep, once the implementation of a huge impact.
Orthodox view: Titanium dioxide has the potential to lead to “murder”, requiring inclusion of suspected substances that may cause cancer by inhalation.
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Square representative:
1. The European Chemicals Agency (ECHA): According to the ECHA Risk Assessment Committee (RAC), available scientific evidence suggests that the carcinogenic potential of titanium dioxide is consistent with ECHA’s relevance under the Classification, Labeling and Packaging Regulations (CLP) standard.
2. France: The Harmonized Classification and Labeling Proposal (CLH) was submitted in May 2016, which required the definition of titanium dioxide from the classification and labeling as “substances that are potentially carcinogenic to human body when inhaled” and asked to classify them as Category 1B, H350i classes in Carc carcinogenicity (carcinogenicity, inhalation) are classified as fine particles and nanometers in titanium dioxide and are not distinguishable in morphology, crystalline phase and surface treatment.
Opposition point of view: ECHA comments based on the defective, for the assessment of any harm to titanium dioxide should be based on science.
Anti-representative:
1. British Coatings Federation (BCF) and CEPE (European Paint, Ink and Art Pigment Industry Association): ECHA cited tests on rats using unrealistically large doses of titanium dioxide, which is not in the general production environment Allowed.
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Titanium dioxide as the powder form of titanium dioxide, the finished product obtained after processing has no risk to the consumer, because once embedded into the finished product, the use of paint, paint, printing ink or wallpaper products, consumers and professionals will not be exposed In the form of powder titanium dioxide environment.
2. American Paint Association (ACA): The basis of the opinion is flawed and there is no valid evidence against human risk. In addition, it should also be taken into account that the relevant risks do not apply to products prepared with titanium dioxide, such as coatings, where titanium dioxide has been embedded in the mixture.
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Any assessment of titanium dioxide damage, should be based on the scientific. It is not necessary for the EU to classify titanium dioxide as a carcinogen and may unnecessarily limit or even eliminate certain products in certain international trade.
3. Canadian Association of Paint and Coatings (CPCA): Nearly 3,000 scientific research and tests have been supported and are considered to be flawed. CPCA reports that the CLP process is an ongoing regulatory program that classifies hazardous substances in the EU product range, which will affect the labeling, use restrictions and worker protection of these substances, but this time the CLP classification The focus is on any risk due to exposure to dust, rather than exposure to recipes (including paints and coatings), where titanium dioxide is already in the mixture and therefore does not cause harm.
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Edit:
Titanium dioxide is widely used, the impact is very wide, the evaluation of its harm should be based on the scientific basis.
First, the experiment cited doubt. ECHA cited tests on rats using unrealistically high doses of titanium dioxide, which is not allowed in a general production environment. What is the degree of inhalation? If it is a long time inhalation, how long this time? Allegations are made only to cause cancer after inhalation. Is potential, and may not be fully confirmed.
Second, titanium dioxide will be inhaled in powder form, but its application to paint, paint, printing ink or wallpaper products and other products, will not be exposed to the powder form of the environment, it is not a hazard.
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Moreover, titanium dioxide itself is non-toxic harmless, titanium dioxide is innocent. Nature, there are many minerals, such as quartz, quartz itself is non-toxic, but inhalation of the lungs will lead to silicosis; asbestos itself is also no poison, its greatest harm from its dust, when these small dust is inhaled In the body, it will be attached and deposited in the lungs, causing lung disease; diamond with hydrophobic lipophilic characteristics, when people take under the diamond powder, the diamond powder will stick to the stomach, in the long-term friction, will make people Get stomach ulcers, not timely treatment will die from stomach bleeding. Although many minerals are potentially harmful, they can not deny their use.
Titanium dioxide through the inhalation may cause cancer this thing can not be fully confirmed, whether true or false, companies should pass the matter, caused by dust, dust attaches great importance to the safety and production, the need to protect workers.
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