NP’s acute (oral and dermal) toxicity is low. NP is highly irritating and corrosive to the skin and eye, but does not have significant skin sensitizing potential.
Hazard statement(s). H302 Harmful if swallowed. H315 Causes skin irritation. H318 Causes serious eye damage. H411 Toxic to aquatic life with long lasting
Components. Nonylphenol, ethoxylated (2 EO). Acute toxicity. Skin corrosion/ irritation. Nonylphenol and.
NPEs are high-volume chemicals that have been used for more than 40 years as detergents, emulsifiers, wetting agents and dispersing agents. Nonylphenol polyethoxylate-containing products are used in many sectors, including textile […] Nonylphenol and its ethoxylates (NP and NPEs) have been used for more than 40 years as detergents, emulsifiers, wetting agents and dispersing agents. From data obtained by Environment Canada, an estimated 18,000 tonnes of NP and NPEs were used in Canada in 1998. alkyl chain, and a water soluble chain of 1-100 ethoxylate groups (1EO-100EO) [7]. The mostly used APEs, nonylphenol ethoxylates (NPEs) has an alkyl chain (C9H19, usually branched) and a chain of 9-10 ethoxylate groups (see Fig.1) [9].
H302 Harmful if swallowed. H315 Causes skin irritation. H318 Causes serious eye damage.
PBT: Persistent, Bioaccumulative and Toxic Denna produkt innehåller en SVHC kemiska, nonylphenol ethoxylate, på 0,1 eller högre.
Widely recognized for extreme aquatic toxicity to fish and wildlife, NPEs and NP may also threaten the health of the developing fetus and young children. their toxicity to the freshwater species Pimephales promelas (fathead minnow) and Ceriodaphnia dubia. Acute toxicity tests using nonylphenol (NP), nonylphenol monoethoxylate (NP1EO), and nonylphenol diethoxylate (NP2EO) were conducted using the single chemicals and as binary and tertiary mixtures.
9 Sep 2011 Bacterial degradation of nonylphenol ethoxylates produces more toxic nonylphenol (NP) (Hano et al., 2009). Such compound is also estrogenic
NPE accounts for approximately 85% of alkylphenol ethoxylate production (Anonymous 1997). An NPE is composed of a nonyl chain, usually branched, attached to a phenol ring (hydrophobe moiety) which is combined, via an ether linkage, with one or more ethylene oxide or polyoxyethylene units (hydrophile moiety). Acute Toxicity of Endosulfan, Nonylphenol Ethoxylate, and Ethanol to Different Life Stages of the Freshwater Snail Biomphalaria tenagophila (Orbigny, 1835) These products are NP, nonylphenol ethoxylate (NP1EO), nonylphenol diethoxylate (NP2EO), nonylphenoxyacetic acid (NP1EC) and nonylphenoxyethoxyacetic acid (NP2EC). NPEs can be biodegraded through a mechanism of stepwise loss of ethoxy groups to form lower ethoxylated congeners, carboxylated products and NP. Nonionic surfactant mixtures varying in the number of repeating ethoxy (oxy-1,2-ethanediyl) groups. They are used as detergents, emulsifiers, wetting agents, defoaming agents, etc. Nonoxynol-9, the compound with 9 repeating ethoxy groups, is a spermatocide, formulated primarily as a component of vaginal foams and creams. Nonylphenol ethoxylate containing products used in the public domain include: non- adverse health effects on the health of a species due to organ toxicity.
Toxicity Ecology - water : Very toxic to aquatic life with long lasting effects.
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NP has also been shown to exhibit estrogenic properties in in vitro and in vivo assays. NP’s main use is in the manufacture of NPEs. Toxicity Nonylphenol (NP), a breakdown product of NPEs, has been shown to mimic the action of the female hormone oestrogen. Concerns have focussed on the potential for NP and NPE to cause feminisation in wildlife, such as fish exposed to NP and NPE contaminated effluents, as well as being a potential factor in the increasing incidence absence of other nonylphenol ethoxylate (NPE) degradation by-products, the toxicity, fate and behaviour of some of these (i.e.
The state of California has begun to address APEs by proposing nonylphenol ethoxylates in laundry detergent as a priority product-chemical combination and
9 Nov 2017 Under aerobic and anaerobic treatment conditions, biodegradation to more toxic (and estrogenic) metabolites occurs. These products are NP,
The term is usually reserved for commercially important propylphenol, butylphenol, amylphenol, heptylphenol, octylphenol ethoxylates (OPEs), nonylphenol
17 Feb 2018 present review is the measurement of toxic effect of 4-nonylphenol (4-NP) ultimate degradation product of nonylphenol ethoxylates in different
Hazard statement(s). H302 Harmful if swallowed. H315 Causes skin irritation.
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Request PDF | Toxicity of nonylphenol and nonylphenol ethoxylate on Caenorhabditis elegans | Among the most used chemicals in the world are nonionic surfactants. One of these environmental
Alkylphenols are used as alkylphenol ethoxylate derivates (of which 80% consist of nonylphenol 8 Mar 2015 for the EU limitation, including specific toxicity concerns may warrant a nonylphenol ethoxylates and nonylphenol in cosmetic products in the nonylphenol and nonylphenol ethoxylate and is the 26 th amendment (Directive. 89/677/EC) to Directive 76/769/EC. Nonylphenols are toxic to fish, aquatic.
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9 Nov 2017 Under aerobic and anaerobic treatment conditions, biodegradation to more toxic (and estrogenic) metabolites occurs. These products are NP,
Not only nonylphenol ethoxylate but also nonylphenol was found in the leachate water – a more toxic, genotoxic and low-degradable substance. The results The leaching of concrete with admixtures containing thiocyanate, resin acids, or nonylphenol ethoxylate was also studied, because of their toxic character.