Face mask-A potential source of phthalate exposure for human was written by Xie, Huaijun;Han, Wenjing;Xie, Qing;Xu, Tong;Zhu, Minghua;Chen, Jingwen. And the article was included in Journal of Hazardous Materials in 2022.Recommanded Product: Dicyclohexyl phthalate This article mentions the following:
Face masks are necessary for fighting against the coronavirus disease 2019 around the world. As the face mask is usually made from polymers and phthalates are widely-used additives into the polymers, the face mask could be a potential source of phthalate exposure to humans. However, limited knowledge is available on the occurrence and risks of the phthalates from the face mask. In this study, twelve phthalates were determined in 56 mask samples collected from different countries. The phthalates were detected in all the samples with total levels ranging 115-37,700 ng/g. Estimated daily intakes (EDIs) of the phthalates from the masks ranged 3.71-639 ng/kg body weight/day, and the EDIs of the phthalates from masks for toddlers were â?-5-fold higher than those for adults. Non-carcinogenic risks in relation to the phthalates in masks were found to be within safe levels, yet 89.3% of the mask samples exhibited potential carcinogenic effects to humans. The extent of the risks for wearing masks located at a moderate level comparing with other skin-contacted products. This study unveiled a potential source of phthalate exposure to human, and indicated necessity of managing types and levels of additives in the face masks. In the experiment, the researchers used many compounds, for example, Dicyclohexyl phthalate (cas: 84-61-7Recommanded Product: Dicyclohexyl phthalate).
Dicyclohexyl phthalate (cas: 84-61-7) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: Dicyclohexyl phthalate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics