What is p octylphenol used for?
The main areas of use are as an intermediate in the production of phenol/formaldehyde resins and in the manufacture of octylphenol ethoxylates. These chemicals are used to in rubber, in pesticides and paints. Octylphenol mainly reaches the marine environment in waste waters from factories.
What is the melting point of 4 octylphenol?
4-N-OCTYLPHENOL Properties
| Melting point | 44-45 °C(lit.) |
|---|---|
| Density | 0.961 g/mL at 25 °C(lit.) |
| RTECS | SM5787000 |
| refractive index | 1.5052 (estimate) |
| Flash point | >230 °F |
Is octylphenol ethoxylate toxic?
Most important symptoms and effects (acute and delayed) Potential Adverse human health effects and symptoms : Practically non-toxic if swallowed (LD50 oral 2000/5000 mg/kg). Causes skin irritation. Practically non-toxic in contact with skin (LD50 skin > 2000 mg/kg).
What is nonylphenol ethoxylates used for?
Nonylphenol ethoxylates are nonionic in water, which means that they have no charge. Because of this property they are used as detergents, cleaners, emulsifiers, and a variety of other applications.
Why is Apeo harmful?
APEOs have hormone disruptive properties and they are toxic to aquatic organisms. They degrade by losing ethoxylate groups and eventually form extremely harmful Nonylphenol or Octylphenol (NP/OP). NP mimics oestrogen, a human hormone and this has been found to cause hormonal disturbances in aquatic life.
What happens when male fish are exposed to Apeo?
A previous study reported that male fish exposed to NP and OP exhibited decreased reproductive capacity and vitellogenin synthesis, which resulted in yolk degeneration in piscine oocytes [14]. In addition, dogs treated with APEO mixtures exhibited symptoms of cardiotoxicity [12].
What is APEO in textile?
Alkylphenol ethoxylates (APEO) is the term used to describe the group of organic substances of which NPEO is one. These are mainly used as washing and cleaning agents (ie surfactants) and are used for textile and leather processing.
What is APEO in paint?
APEO is added to paint products as pure substance or as a part of other raw materials. The raw materials containing APEO can be grouped in the following categories: Binders. Dispersion aids. Thickeners.
Why is APEO harmful?
What are NPE chemicals?
NP/NPEs, also known as nonylphenols and nonylphenol ethoxylates, are nonionic surfactants, or detergent-like substances, with uses that lead to widespread release into aquatic environments. NP/NPEs are highly toxic to aquatic life.