Canada will allow decamethylcyclopentasiloxane to be used in skin care products

According to a decision made by the Canadian government in recent days, decamethylcyclopentasiloxane (D5) can continue to be used in skin care lotions, antiperspirants and shampoos in the future. The chairman of the North American Silicone Environmental, Health, and Safety Committee, Carol Thomas, said: “The silicone industry welcomes the government’s redress for D5 and supports the decision to remove D5 from the list of toxic chemicals.” and the European Silicone Center spoke People said that Europe will continue to verify the environmental safety of D5 and octamethylcyclotetrasiloxane (D4). D5 has now replaced D4 in many applications.

Prior to this, the Canadian Ministry of Environmental Protection planned to list D5 as a list of toxic chemicals and limit its use. The industrial community has complained. In response, Canadian authorities established the D5 investigation team in 2010. A government spokesperson stated that the authorities also plan to restrict the use of D4, and the final restriction decision will be issued before June 15. Regulators had previously feared that the accumulation of D5 could pose a threat to the marine environment, but the D5 research team established by the Canadian government recently found that the compound is harmless to the environment and that its accumulation in the organism does not pose a risk to biodiversity. Canadian Environment Minister Peter Kent said the government accepted the findings.

Crystallizer

Evaporation continuous crystallizer is mainly used for the following aspects:
1. Chemical industry: used for the crystallization separation and purification of chemical raw materials such as organic compounds and inorganic salts.
2. Food industry: used for crystallization and refining of food raw materials such as sugar and salt.
3. Pharmaceutical industry: used for crystallization and purification of active ingredients, intermediates, etc. in pharmaceuticals.
4. Environmental protection industry: used to treat the crystallization and recovery of salts, organic compounds, etc. in wastewater.
5. Mineral industry: used for the separation and purification of metal salts, rare earth elements, etc. in minerals.

Evaporative continuous crystallizer is a device used to separate solid crystals from a solution. It is mainly used in crystal preparation and purification processes in industries such as chemical, pharmaceutical, food, and fertilizer. It can evaporate, concentrate, and crystallize the solutes in the solution to obtain high-purity crystal products. Evaporative continuous crystallizers have the advantages of high efficiency, energy conservation, high automation, and small footprint, and are widely used in crystal preparation and purification processes in industries such as chemical, pharmaceutical, and food.

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