2,6-Di-tert-butyl-4-nonylphenol(DTBNP) was synthesized from 4-n-nonyl phenol and isobutylene, etc. using self-made composite super acid as catalyst. The appropriate technology conditions are as follows: reaction temperature is 60-80 , reaction time is 4h, n 4-n-nonyl phenol : n Isobutylene = 1: 2 and the amount of catalysts is 0.019% of the quantity of 4-n-nonyl phenol reactant, the yield can r...

Background Nonyl phenol (NP) is a degradation product of nonylphenol polyethoxylates, which are widely used in the production of industrial and consumer surfactants. NP a Kind of environmental chemical, is thought to imitate endogenous hormones, inhibit the actions of hormones, and induce reproductive abnormalities. In this study, evaluation of Nonyl phenol toxic effects on reproductive system ...

Alkylphenols are widely used as plastic additives and surfactants. We report the identification of an alkylphenol, nonylphenol, as an estrogenic substance released from plastic centrifuge tubes. This compound was extracted with methanol, purified by flash chromatography and reverse-phase high performance liquid chromatography, and identified by gas chromatography-mass spectrometry. Nonylphenol ...

Three growth studies were conducted with lambs, mature wethers and young cattle to examine the effects of defaunation on production. The animals were fed a' high energy-low protein diet su.pplemented with several levels of protein. These diets supported relatively high populations of protozoa in the rumen. A single dose of nonyl phenol ethoxylate (trade name Teric GN9) was used to remove protoz...

The distribution and the metabolic fate of 4-n-nonylphenol were investigated in male and female Wistar rats dosed orally with 1 microg/kg ("low-dose") or 10 mg/kg ("high-dose") labeled 4-n-nonylphenol. Following a 4-day metabolic balance study, neither the distribution pattern nor the residual levels of 4-n-nonylphenol were found to be different between groups, and no unexpected tissue-specific...

Slowly diffusing water molecules were found by quasi-elastic neutron scattering (QENS) in a sodium dodecyl sulfate (SDS) micellar solution, and both their diffusion coefficient (4.33 x 10(-6) cm2 x s(-1)) and mole fraction (0.057) were determined. After successfully checking the mean slowing down of solvent molecules by the gradient compensated stimulated spin-echo (GCSTE) pulse sequence NMR me...

Surfactants are one of the major components (10- 18%) of detergents and household cleaning products and are used in high volumes in developed countries. In the present research work, the ability of rice husk as a low cost adsorbent for anionic and nonionic surfactants in wastewater has been studied. The maximum removal efficiency for anionic surfactants was 97%, in an aqueous solu...