Orthophthalates

Orthophthalates, often simply referred to as phthalates, are a group of chemical compounds derived from phthalic acid. The most common type is diethylhexyl phthalate (DEHP), but others include dibutyl phthalate (DBP) and benzyl butyl phthalate (BBP). They are widely used as plasticizers, substances added to plastics to increase their flexibility, transparency, durability, and longevity. Orthophthalates are particularly prevalent in polyvinyl chloride (PVC) products.

These compounds are not chemically bonded to the plastic polymer and can leach out over time, especially when the plastic is heated, scratched, or exposed to fatty substances. This potential for migration has led to concerns regarding their presence in the environment and their potential impact on human and animal health. Regulatory bodies in various regions have established limits on the use of certain orthophthalates in specific applications, such as children's toys and food contact materials.

Research has explored potential health effects associated with exposure to orthophthalates, including endocrine disruption and reproductive issues, although the scientific consensus on the extent and significance of these effects is still evolving. Efforts are underway to develop and implement safer alternatives for plasticizing applications. The presence of orthophthalates can be detected through various analytical methods, contributing to ongoing research and regulatory monitoring.