high performance Diisononyl phthalate (DINP) Guatemala

  • high performance Diisononyl phthalate (DINP) Guatemala
  • high performance Diisononyl phthalate (DINP) Guatemala
  • high performance Diisononyl phthalate (DINP) Guatemala
  • What is Di-isononyl phthalate (DINP)?
  • Di-isononyl phthalate (DINP) is a phthalate used as a plasticizer in e.g. many technical products. It exists in two forms (and two CAS numbers), reflecting the two possible routes for isononanol precursor production. However their properties are similar.
  • How is Di-isononyl phthalate produced?
  • Di-isononyl phthalate is produced by one-step ester-ification of phthalic anhydride with isononanol (INA) and a catalyst. Two types of isononanol can be used for the synthesis: either a pure C9 fraction (synthe-sized from isooctene), or a C8-C10 fraction, C9-rich (synthesized from C7-C9, C8-rich alkene).
  • Is monoisononyl phthalate a minor metabolite of DINP?
  • We detected monoisononyl phthalate (MNP), a minor metabolite of DINP, much less frequently (12.9%) and at concentration ranges (> 0.8 μg/L–148.1 μg/L) much lower than MCOP (> 0.7 μg/L– 4,961 μg/L). Adjusted geometric mean concentrations of MCOP and MCNP were significantly higher (p < 0.01) among children than among adolescents and adults.
  • Which phthalate esters are used in ecobilan?
  • A comparison with the previous Eco-profile conducted by Ecobilan [ECOBILAN 2001] was made. In the current Eco-profile, only one plasticiser was used, whereas in the previous eco-profile three high volume commodity phthalate esters including Di-2-ethylhexyl phthalate (DEHP) and Di-isodecyl phthalate (DIDP) as well as DINP were considered.
  • Does Diisobutyl phthalate have anti-androgenic effects in fetal rat testis?
  • Diisobutyl phthalate has comparable anti-androgenic effects to di-n-butyl phthalate in fetal rat testis. Toxicol Lett 163:183–190. Calafat AM, Needham LL. 2008. Factors affecting the evaluation of biomonitoring data for human exposure assessment. Int J Androl 31:139–143. Calafat AM, Needham LL. 2009.
  • Which phthalate is used for MCNP calibration?
  • We used the calibration curves constructed with mono(2,6 dimethyl 6 carboxyhexyl) phtha late (for MCOP), mono(2,7 dimethyl 7 carboxyheptyl) phthalate (for MCNP), and mono(3,5,5 trimethyl 1 hexyl) phthalate (for MNP) and their isotopically labeled analogs as the internal standards for quantification, as described previously (Silva et al. 2007b).

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