What are the key technical specifications and safety data for DINP buyers?
DINP is a viscous, slightly odorous oil with APHA color below 50, acid value under 0.01% (as acetic acid), and ester content of 99.5%. Density at 25°C ranges 0.961–0.969 g/cm³, viscosity 83–125 mPa·s at 20°C, and flash point 219°C (open cup). It is insoluble in water but miscible with alcohols, ketones, ethers, esters, and aromatic solvents. For safety, DINP has low acute toxicity with rat oral LD50 above 10 g/kg. Chronic toxicity is considered similar to DOP, and a 12-week subacute feeding study in cats at 2 ml/kg showed no abnormalities. However, regulatory scrutiny remains high: DINP is restricted in EU children's toys and clothing to below 0.1% due to endocrine disruption concerns, so buyers must verify compliance for sensitive end-uses.
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