The presence of such compounds, even at low concentration, can cause unpleasant taste and smell in drinking water . PubChem Substance ID: 24864934. Pentachlorophenol is an old-line insecticide and wood preservative that is a "reasonably anticipated" human carcinogen and an environmental hazard. Not many chemicals are up to the challenge. PCP of 98% purity has been described as cream-colored, while technical-grade PCP is pale brown in color ( NTP, 1989 ). They have a strong, medicinal taste and smell. Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), PCP is "likely to be carcinogenic to humans." This may be a synopsis of the full weight-of-evidence narrative. Pentachlorothiophenol | C6HCl5S | CID 8620 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities . Pentachlorophenol was widely used as a pesticide and wood preservative. At one time, it was one of the most widely used biocides in the United States.
Pentachlorophenol (PCP) is a restricted use pesticide that can only be used by professionals. (APF = 10) Any air-purifying half-mask respirator with organic vapor cartridge (s) in combination with an N95, R95, or P95 filter. The HPLC elution program was optimized to obtain the best peak shape and resolution. Product type Comments IFRA Subcategory Flavour use Phototoxicity IFRA category QRA1 - 48th Amendment; Candles of all types (including encased) Due to the expected negligible ski Pentachlorophenol | C6Cl5OH or C6HCl5O | CID 992 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological . After decades of restricting the use of pentachlorophenol, the US Environmental Protection Agency proposed a complete ban on it in early 2021. Pentachlorophenol was widely used as a pesticide and wood preservative. It can be found in two forms: PCP itself or as the sodium salt of PCP, which dissolves easily in water. Pentachlorophenol (PCP) is an industrial wood preservative used mainly to treat utility poles and cross arms. Other Long-Term Effects * Pentachlorophenol may damage the liver and kidneys. It has a pungent odor when hot and is used in making pesticides and fungicides, and as a wood preservative. Pentachlorophenol (PCP) is an organochlorine compound with a solid white appearance and needle-like crystals. Pentachlorophenol on the skin can cause irritation. The EPA claims that "pentachlorophenol poses significant human health risks to workers." It has a pungent odor when hot and is used in making pesticides and fungicides, and as a wood preservative.. What is pentachlorophenol used for? Toxicity Profiles RAGs A Format for Pentachlorophenol - CAS Number 87865 . 2017-2019: FOUND FOUND ABOVE HEALTH GUIDELINES FOUND ABOVE LEGAL LIMIT 19 states detected 143 utilities detected 2.5 million people served Health concerns for pentachlorophenol Cancer Ingestion causes loss of appetite, respiratory difficulties, anesthesia, sweating, coma. Pentachlorophenol is a man-made chemical that does not occur naturally. Pentachlorophenol (PCP) is one of the . (USCG, 1999) Reactivity Profile PENTACHLOROPHENOL may react with strong oxidizing agents. (1) The odor threshold for pentachlorophenol is approximately 12 parts per million (ppm). It is used as a wood preservative for making utility poles, railroad ties, and wharf support pilings. Molecular formula C 6 HCl 5 O Formula weight 266.3 g/mol Family Phenolic compounds Properties (at room temperature where applicable) Environmental behaviour At 20 0C, pentachlorophenol is a solid with very low volatility and moderate solubility. Pentachlorophenol mineralization in water from several sites was very low (<5 ng/L per day). Most chlorophenols are solid at room temperature.
The chemical is banned under the United Nation's Stockholm Convention on Persistent Organic Pollutants, a treaty the US signed but never ratified. What does pentachlorophenol smell like? Pentachlorophenol: 87-86-5: 1000 g/mL in methanol, 1 mL/ampul: ea. certified reference material, 5000 g/mL in methanol. Human data: Dusts are particularly irritating to the eyes and nose at concentrations greater than 1 mg/m 3 but concentrations up to 2.4 mg/m 3 have been tolerated by workers that have been conditioned [Clayton and Clayton 1981]. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) In its pure form, pentachlorophenol has a strong phenolic odor.
Pentachlorophenol (PCP) is a substance whose widespread use, mainly in wood protection and pulp and paper mills, has led to a substantial environmental contamination. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Abstr. Certified Reference Material (CRM) Yes Max Shelf Life on Ship Date Pentachlorophenol can be found in two forms: pentachlorophenol itself or as the sodium salt of
Removal of pentachlorophenol (PCP) from wastewater containing chlorophenols, due to its toxicity, mutagenic and carcinogenic properties, has been attracted much interests of researchers. The molecular formula of this chemical is C 6 Cl 5 OH. . It is no longer available to the general public. However, pentachlorophenol adsorbed to soil or organic particles can migrate with the soil if it is disturbed and mobilized (e.g., excavation, pole removal, erosion The nature of the volatile organic compounds that could be at the origin of the characteristic odor of treated wood utility poles was investigated by the study of compositional changes in the chromatographic profiles of fresh-pentachlorophenol (PCP) solvent samples and weathered samples collected from an in-service red pine pole. 0 Pentachlorophenol in petroleum or other solvents 0 Creosote 0 Fire retardants -0 Water or ammonia solutions of copper, chromium, arsenic, and zinc Older wood preserver sites contain widespread soil, sediment, and sludge contamination generated by processes, practices, equipment leaks, storage, and waste treatment. This page contains information on the chemical Pentachlorophenol including: 78 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and proper shipping name; USDOT 2008 Emergency Response Guidebook initial response information. Other articles where pentachlorophenol is discussed: full-cell process: creosote, oil-based chemicals such as pentachlorophenol (PCP), and aqueous solutions of compounds such as chromated copper arsenate (CCA), ammoniacal copper zinc arsenate (ACZA), and copper azole (CA-B). grade. It has a pungent odor when hot and is used in making pesticides and fungicides, and as a wood preservative. 5. Pure pentachlorophenol exists as colorless or white crystals. Odour threshold (mg/l) 1.6 (in water). What does pentachlorophenol smell like? When it is really hot, it has a sharp chemical smell but at room temperature there is just a very faint odor. During the method development, it was found that the pH of the mobile phase has an obvious influence on the retention time and peak shape of pentachlorophenol and niclosamide; when the elution strength was increased too rapidly to 90% methanol, niclosamide and fenpropathrin had similar retention times and this . What are the Health Effects Associated with Pentachlorophenol? First produced in the 1930s, it is marketed under many trade names. Select Deselect: Catalog # 31297 Product Name Pentachlorophenol CAS Number 87-86-5 Conc. Basis: Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), PCP is "likely to be carcinogenic to humans." This may be a synopsis of the full weight-of-evidence narrative. During the registration review process, EPA found that given the emergence of viable alternatives, "the risks pentachlorophenol poses to workers' health outweigh the . Pentachlorophenol (PCP) is an industrial wood preservative used mainly to treat utility poles and cross arms. Impure pentachlorophenol (the form usually found at hazardous sites) is dark gray to brown and can exist as dust, beads, or flakes. Pentachlorophenol is classified as a substance considered to be carcinogenic for man (Carcinogenicity category 2) [8]. Pentachlorophenol and its sodium salt are primarily used as antimicrobial and antifungal agents. pentachlorophenol aluminum color copper Prior art date 1970-08-25 Legal status (The legal status is an assumption and is not a legal conclusion. Recently, pentachlorophenol has gone missing (just isn't there) in the check on two instruments, but it's there on a third. Pentachlorophenol Molecular Formula CHClO Average mass 266.336 Da Monoisotopic mass 263.847015 Da ChemSpider ID 967 More details: Featured data source Names Properties Searches Spectra Vendors Articles More Names and Synonyms Database ID (s) Validated by Experts, Validated by Users, Non-Validated, Removed by Users 1285380 [Beilstein] PCP is applied using pressure and high temperatures in specialized treatment cylinders. Pentachlorophenol is readily absorbed through intact skin. in Solvent and Volume 1000 g/mL in methanol, 1 mL/ampul Units ea. Pentachlorophenol can enter the environment (in air, water, and soil) via evaporation from treated woods, industrial spills, and disposal at hazardous waste sites. The US National Toxicology Program lists pentachlorophenol as a "reasonably anticipated" human carcinogen. Pentachlorophenol does biodegrade but may require several weeks for acclimation. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): What is pentachlorophenol? Pentachlorophenol occurs in two forms: the anionic phenolate at neutral to alkaline pH; and the undissociated phenol at acidic pH. The molecular basis of the toxic properties of phenoxy herbicides in humans and animals has been insufficiently studied. Beilstein: 1285380. Humans are usually exposed to impure pentachlorophenol (also called technical grade pentachlorophenol). Pure pentachlorophenol occurs as a colorless or white powder with a crystalline structure that has a sharp chemical odor when hot, but very little smell at room temperature. It harms developing fetuses, and causes immune suppression and hormone disruption. Is pentachlorophenol wood preservative? (APF = 25) Any powered, air-purifying respirator with an organic . : N99, R99, P99, N100, R100, P100 technical grade pentachlorophenol contains many,! 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(1) Impure pentachlorophenol is dark gray to brown and exists as dust, beads, or flakes. Chem. certified reference material TraceCERT .
Pentachlorophenol: Class: Small Molecule: Description: Pentachlorophenol (PCP) is an organochlorine compound used as a pesticide and a disinfectant. Expired - Lifetime Application number US00066890A Inventor J Francis L Horcher Chlorophenols are produced by electrophilic halogenation of phenol with chlorine. GCMS tuning solution which contains pentachlorophenol (PCP), DFTPP, Benzidine, and 4,4'-DDT @ ~ 50g/mL has been used as a tune check for many years.
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