Question

Does OP-4 octylphenol polyoxyethylene ether meet environmental requirements? Can a test report be provided?

Answer
2026-06-06 官方文档 OP-4辛基酚聚氧乙烯醚

OP-4 octylphenol polyoxyethylene ether has significant risks in terms of environmental compliance, belongs to chemicals under regulatory concern, and currently there is no specific environmental test report for this product available in the Guoli Chemical product database.

Detailed Explanation

OP-4 octylphenol polyoxyethylene ether belongs to the alkylphenol polyoxyethylene ether (APEO) class of non-ionic surfactants. According to the safety instructions in the Guoli Chemical product database, this product is clearly marked with H410 hazard statement – "Very toxic to aquatic life with long-lasting effects," and it is expressly stipulated that "the product must not be discharged directly into water bodies, and waste must be disposed of by qualified institutions." This indicates that the product itself has significant environmental hazard characteristics in terms of aquatic ecotoxicity and is not an environmentally friendly product.

From the perspective of international environmental regulations, APEO substances (including octylphenol polyoxyethylene ether and its degradation product octylphenol) have been included in the key control scope of many international regulations. The EU REACH regulation lists octylphenol as a Substance of Very High Concern (SVHC) because of its endocrine-disrupting properties and environmental persistence; industry standards such as OEKO-TEX Standard 100 and ZDHC (Zero Discharge of Hazardous Chemicals) also set strict limits on APEO residues in textiles. Therefore, in downstream applications, especially in export-oriented industries such as textiles and leather, the environmental compliance risks need to be fully assessed.

Technical Parameters

Environment-related ParameterDataSource
Aquatic Toxicity ClassificationH410 (Very toxic to aquatic life with long-lasting effects)Guoli Chemical Product Database
Acute Toxicity (Oral LD₅₀ in Rats)>2000 mg/kg (Low toxicity)Guoli Chemical Product Database
BiodegradabilityNo test data available
Environmental Hormone/Endocrine Disrupting PotentialNo test data available (but the degradation product octylphenol is known to have endocrine-disrupting properties)
APEO Residue Test ReportNot available
RoHS/REACH Compliance TestNot available

Application Recommendations

OP-4 still has important industrial applications in pesticide emulsification, oil extraction, industrial cleaning, etc., but it is recommended that users conduct compliance assessments based on their specific application scenarios and target markets:

  • Textile and leather export enterprises: If the final product needs to meet international standards such as OEKO-TEX, REACH, it is recommended to evaluate alternatives or strictly control the APEO residue level in the final product.
  • Industrial cleaning and metal processing: Use in closed-loop systems with wastewater treatment facilities to ensure compliant discharge of wastewater.
  • Pesticide formulations: Pay attention to environmental requirements for adjuvants in pesticide registration; some countries and regions have begun to restrict the use of APEO adjuvants in pesticides.
  • Suggested alternative directions: In scenarios with strict environmental requirements, consider environmentally friendly alternatives such as fatty alcohol polyoxyethylene ether (AEO) or isomer alcohol ethers.

Notes

  • The database currently does not contain specific environmental test reports for OP-4 (such as biodegradability tests, APEO content tests, REACH compliance tests, etc.). If such reports are needed, please contact the Guoli Chemical technical department directly.
  • It is recommended to use activated sludge method or advanced oxidation process for wastewater treatment to degrade OP-4; untreated wastewater containing OP-4 must not be directly discharged into the environment.
  • During operation, strictly follow the protective requirements related to H410 to prevent leakage into soil and water bodies; dispose of waste according to hazardous waste management requirements.