Joakim Larsson Göteborgs universitet
SAFETY HAZARDS. Explosivity. Not expected to be explosive based on its structure. Nonylphenols (NP) and nonylphenol ethoxylates (NPEs) are used as surfactants in detergent formulations, wool, metal, textile and leather processing, and as 8 Mar 2015 nonylphenol ethoxylates and nonylphenol in cosmetic products in the I'm not sure what about the structure would cause that conclusion to be The hydrophilic group of nonionic surfactants is a polymerized alkene oxide ( water soluble polyether with 10 to 100 units length typically). They are prepared by Alternatives for Nonylphenol Ethoxylates 5.2 Effects of Alkyl Chain Structure . Nonylphenol ethoxylates (NPEs) represent the main product type in this group.
The aim of this work was to gain insight into the effect of ethylene oxide (EO) chains on the properties of a series of nonylphenol ethoxylate (NPE) surfactants. environmental risk assessment on alkylphenol ethoxylate (APE); and 2) conclusions APE, its chemical structure and U.S. consumption volumes. The second Nonylphenol ethoxylates structure Company MSDS for TERGITOL ™ NP-9. SURFACTANT Ethoxylates (Adapted from Ahel et al., 1994; Naylor, 1992). C. 9 .
code toxicity oral rats ld50: 1600mg/kg NP nonylphenol NPE nonylphenol ethoxylates NPEC nonylphenol ether-carboxylate OECD Organization for Economic Cooperation and Development OPE octylphenol ethoxylate OSPAR Oslo and Paris Commissions P persistence PAA Preliminary Alternatives Assessment PBT persistent, bioaccumulative, and toxic PEG polyethylene glycol Xiaoya Ji et. alEcotoxicology and environmental safety, 175, undefined (2019-3-23) The widely used surfactant nonylphenol ethoxylate (NPEO) and its raw material 4-n-nonylphenol (4-n-NP), as well as its degradation products, are recognized as endocrine disrupting chemicals.
MR2004-183 - DTU Orbit
Nonylphenol Ethoxylate. (NPE).
Sveriges internationella överenskommelser - UNECE
synonymer: marlowet4536 | marlophen The structure and dynamic properties of micellar solutions of nonionic surfactants of a series of isononylphenol ethoxylates, C9H19C6H4O(C2H4O)nH (where n Micelle structure and molecular self-diffusion in isononylphenol ethoxylate–water systems (ed.).
5: NMR Relaxation Studies of Deuterium Labeled Nonylphenol Ethoxylate; 2009 (författare); NMR for studying structure and dynamics in colloidal systems
Figure 21.10 Structures of (a) a straight-chain alcohol ethoxylate, and (b) a nonylphenol ethoxylate Emulsions and Emulsifiers 467 the surfactant dimension. (1994a) Behaviour of alkylphenol polyethoxylate surfactants in the aquatic (1990) Determination of nonylphenol and nonylphenol ethoxylates as their. av A Ledin — Modellering med QSAR (Quantitative Structure. Activity Relationships; som är ett Nonylphenol mono ethoxylate NP1EO. D. Nonylphenol poly
DESIGN AND STRUCTURE. 1. Each Party shall ensure that the data held on the 5.
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It is a complex mixture of highly branched nonylphenols, largely mono-substituted in the ETHOXYLATED NONYLPHENOL is a polyether. May react exothermically with strong oxidizing agents. Belongs to the Following Reactive Group (s) the mole number of ethylene oxide. There is a wide HLB range depend their molar ratios between nonylphenol and E.O. The common mole ratio forms for detergency are NPE 9 - 12, where the number indicates ethoxylate chain length. The lower number mole ratio products are used as wetting agent whereas the higher moles ratio products are The most widely-used of the nonionic surfactants are alkylphenols and alkylphenol ethoxylates, with nonylphenol (NP) making up approximately 85% of the alkylphenol market and nonylphenol ethoxylate (NPE) making up more than 80% of the alkylphenol ethoxylate market in North America.
a combined dft and dpd studyThe aim of this work was to gain insight into
Nonylphenol ethoxylate. Structure. Snabbvy: Nonylphenol ethoxylate. BGC Id: 892954295679. CAS No.: 37205-87-1. synonymer: marlowet4536 | marlophen
The structure and dynamic properties of micellar solutions of nonionic surfactants of a series of isononylphenol ethoxylates, C9H19C6H4O(C2H4O)nH (where n
Micelle structure and molecular self-diffusion in isononylphenol ethoxylate–water systems (ed.).
teric N. terics Ethoxylation is a chemical reaction in which ethylene oxide adds to a substrate. It is the most widely practiced alkoxylation, which involves the addition of epoxides to substrates.. In the usual application, alcohols and phenols are converted into R(OC 2 H 4) n OH where n ranges from 1 to 10. Such compounds are called alcohol ethoxylates. Alcohol ethoxylates are often converted to related Nonylphenol ethoxylates (NPE) are man-made compounds with the chemical formula (C 2 H 4 O) n C 15 H 24 O. They are compounds of nonylphenol [C 15 H 24 O] with one or more groups of ethoxylates [(C 2 H 4 O)n] attached. The number (n) of ethoxylate groups varies between NPE compounds, imparting different properties to the chemical substance.
Molecular Weight: 308.46. EC Number: 200-662-2. This preferred structure results in a range of 14.2 < HLB < 19.6 and roughly between 3000 and 6000 g/mol.
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Joakim Larsson Göteborgs universitet
Y S/P 2. in separate organisational structures, but they are still built on a common foundation when assessing hazards Nonylphenol Ethoxylates (NPEO). Octylphenol Strukturformler för de aminer som ingått i studien. Structures of the amines included in this study. Screening utförd av. IVL Svenska Miljöinstitutet AB. År/year.