Nonyl phenol ethoxylate

Reversed phase liquid chromatography-mass spectrometry was applied to extracts of Jamaica Bay (New York) water to determine 1-300 xg/l amounts of nonyl phenol ethoxylates and their metabolites [213]. 

Figure 3. Phase compositions for 3((>Ci-/NPE5o mixtures variation of the micellar phase composition with monomer phase composition for mixtures of decyl benzene sulfonate with a nonyl phenol ethoxylate having an ethoxylate having an ethylene oxide chain length of 50, at 27 °C.

Table V. Enthalpy of Mixing Decyl Benzene Sulfonate Micelles with Nonyl Phenol Ethoxylate Micelles...

La Guardia MJ, Hale RC, Harvey E, et al. 2000. Endocrine disruptors (octylphenol, nonylphenol, nonyl phenol ethoxylates and polybrominated diphenyl ethers) in land applied sewage sludge biosolids. In Preprints of extended abstracts. American Chemical Society, Division of Envrionmental Chemistry. 

Add Makon 10 (nonyl phenol ethoxylate, 10 EO) to the mixture under agitation. 

The emulsion copolymerization of BA with PEO-MA (Mw=2000) macromonomer was reported to be faster than the copolymerization of BA and MMA, proceeding under the same reaction conditions at 40 °C [100]. Polymerizations were initiated by a redox pair consisting of 1-ascorbic acid and hydrogen peroxide in the presence of a nonionic surfactant (p-nonyl phenol ethoxylate with 20 moles ethylene oxide). In the macromonomer system, the constant-rate interval 2 [9,10] was long (20-70% conversion). On the other hand, the interval 2 did not appear in the BA/MMA copolymerization and the maximum rate was lower by ca. 8% conversion min 1 and it was located at low conversions. 

Fig. 5. Dependence of the rate of polymerization [Rp/%Conv./min)] in the free-radical emulsion polymerization of butyl acrylate in the presence of PEO-MA macromonomer on emulsifier (E, p-nonyl phenol ethoxylate) concentration [100]. Temp. 50 °C...

FOUND IN Conventional laundry detergents, all-purpose cleaners, and hard-surface cleaners Also known as nonyI phenoxy ethoxylate or nonyl phenol ethoxylate. Researchers in England have found that in trace amounts these synthetic surfactants activate estrogen receptors in cells, which in turn alters the activity of certain genes. For example, in experiments they have been found to stimulate the growth of breast cancer cells and feminize male fish. 

PARCOM 92/8 (1992) Nonyl phenol ethoxylates. OSPAR Commission for the Protection of the Marine Environment ofthe North-East Atlantic, http //www.ospar.org/documents/dbase/decrecs/ recommendations/pr92-08e.doc (19 Aug 2004). 

EC (2003) Restrictions on the marketing and use of certain dangerous substances and preparations, nonyl phenol, nonyl phenol ethoxylates and cement. Official Journal ofthe European Communities, L178 (17 July 2003), 24-7. 

Frankfurt, Germany Arkopal N Series Nonyl phenol ethoxylates... 

Methylene chloride, trichloroethylene, tetrachloroethylene, lead compounds, mercury, cadmium, organotin compounds, chloroparaffins, phthalates, nonyl phenol ethoxylates, arsenic, creosote, brominated flame-retardants. 

Two types of surfactant nonionics were considered. The nonyl phenol ethoxylates and the octyl phenol ethoxylates. These two types of surfactants were chosen as they are often encountered in agricultural formulations because of their respective efficiency. The results of the evaluation are giveji below ... 

QUATRISOFT LM 200,a cationic celluloslc polymer with hydrophobic groups,Is a product of Union Carbide Corporation as Is the cationic celluloslc polymer. Polymer JR. Both have a molecular weight In excess of 100,000. Tergltol NP 10, a nonyl phenol ethoxylate used In this study Is also a product of Union Carbide Corporation. Sodium dodecyl sulfate Is a high purity sample purchased from EM Science Corporation. Pyrene which Is used as a fluorescence probe was obtained from Aldrich Chemicals Co. 

Ethoxylated primary alcohol Ethoxylated nonyl phenol Ethoxylated thio-ethers... 

These are prepared by the reaction of EO with an appropriate alkyl phenol. The most common surfactants of this type are those based on nonyl phenol they are cheap to produce but suffer from problems of biodegradability and potential toxicity (the byproduct of degradation is nonyl phenol, which is considerably toxic in fish and mammals). Despite these problems, nonyl phenol ethoxylates are still used in many industrial properties, due mainly to their advantageous properties such as... 

Nonyl phenol ethoxylated Fathead minnow LC50 96 h 4.6 mg L [61]... 

Caloxylate N-9 Nonyl phenol ethoxylate (9 Mole EO) Pilot... 

Katly acid ethoxylates Nonyl phenol ethoxylate (NPE)... 

Sulfates of nonyl phenol ethoxylates C9 alkyl group plus phenol ring Broad effectiveness Not environmentally preferred Low-Moderate... 

Sodium salt of sulfated nonyl-phenol ethoxylate Form liquid % Active 28... 

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