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Thursday, November 19, 2020 | History

3 edition of The effect of tricresyl-phosphate (TCP) as an additive on wear of iron (Fe) found in the catalog.

The effect of tricresyl-phosphate (TCP) as an additive on wear of iron (Fe)

The effect of tricresyl-phosphate (TCP) as an additive on wear of iron (Fe)

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Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Metals.,
  • Iron.

  • Edition Notes

    StatementHiren M. Ghose, John Ferrante, and Frank S. Honecy.
    SeriesNASA technical memorandum -- 100103
    ContributionsFerrante, John., Honecy, Frank S., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17099680M

      Triorthocresyl Phosphate () sister projects: Wikidata item. NIOSH Manual of Analytical Methods — Triorthocresyl Phosphate () National Institute for Occupational Safety and Health


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The effect of tricresyl-phosphate (TCP) as an additive on wear of iron (Fe) Download PDF EPUB FB2

While the concluding section notes that use of tricresyl phosphate poses very little risk to either the environment or the general population, the report underscores the severity and long-duration of the neuropathology caused by accidental poisoning, noting that some victims never recover.

Basis for original (SCP) IDLH: No data on acute inhalation toxicity are available on which to base an IDLH for triorthocresyl phosphate. The chosen IDLH has been estimated from oral toxicity data cited by ACGIH []. ACGIH [] reported that serious paralysis has been produced in man by an oral dose of the order of 6 to 7 mg/kg [Patty ].

The present study investigates the effect of tricresyl phosphate (TCP) as an antiwear additive in lubricant trimethyol propane triheptanoate (TMPTH). The objective of this study was to combine examinations of: surface analysis. neopentyl polyol esters for jet engine lubricants-effect of tricresyl phosphate on thermal stability and corrosivity paperback – by R.

Cottington (Author)Author: R. Cottington. In addition, tricresyl phosphate (TCP) has been shown to be potential thyroid hormone disruptors and could cause reproductive toxicity (van der Veen and Boer, ; Zhang et al., ).

Accordingly, it is essential to understand the fate of OPEs in aquatic The effect of tricresyl-phosphate book for their ecological risk : Shibin Sun, Jingqiu Jiang, Hongxia Zhao, Huihui Wan, Baocheng Qu.

A meta description is an HTML tag in the HTML code of your website, which allows you to customize a section of text that describes the page itself.

It plays a role in how your page is seen by search engine crawlers, and how it appears in SERPs. Aerotoxic syndrome is the name given to the alleged ill effects (with symptoms including memory loss, depression and schizophrenia) caused by exposure to engine chemicals although UK industry-funded studies have not made a Chemical formula: C₂₁H₂₁O₄P.

Neopentyl Polyol Esters for Jet Engine Lubricants-Effect of Tricresyl Phosphate on Thermal Stability and Corrosivity R.

L COTTINGTON AND H. RAVNER Surfaie Chemisft, Branch Chemist, Lisin V Febru y j hw,4 NAVAL RESEARCH LABORATORY ThAs d&'aamt bes bu blkc whom mid ask, iua dWWtt si s uama &Cited by: 2. Possible exposure to TriCresyl Phosphates (TCPs) has led to concerns among airline crew members.

One isomer, Tri-ortho-Cresyl Phosphate (ToCP) is known to be neurotoxic and exposure to ToCP via contaminated cabin air has been suggested to be associated with the alleged Aerotoxic syndrome.

The symptoms associated with Aerotoxic syndrome are diverse, Cited by: Tricresyl phosphates (TCPs), a typical sort of organophosphate flame retardants, has received extensive concerns due to its potential adverse effects.

However, limited information is available on the efficient and safe removal methods of TCPs. In this regard, TCPs were tentatively biodegraded with Brevibacillus brevis. A probable degradation pathway was further proposed Author: Ying Liu, Hua Yin, Kun Wei, Hui Peng, Guining Lu, Zhi Dang.

Get this from a library. The effect of tricresyl-phosphate (TCP) as an additive on wear of iron (Fe). [Hiren M Ghose; John Ferrante; Frank S Honecy; United.

Organophosphates, such as TRICRESYL PHOSPHATE, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

tricresyl phosphate, is considered a chang e in formulation if the proportion of individual isomers i n the TCP mixture is altered, but the 3 %r e m a i n su n - changed. Introduction. Tricresyl phosphate (TCP) has been widely used as plastic softeners, plasticizers, jet oil additives, and flame-retardants in industry, and tri-ortho-cresyl phosphate (TOCP) is one of the three isomers (i.e.

o- m- or p-cresyl) (Craig and Barth,Winder and Balouet, ).The isomer TOCP has been reported to induce neurotoxicity (Craig and Barth,Zhang et al., Cited by: DC electric field effects on Ehrenfest-like relations at the glass transition.

Polymer48 (17), DOI: /r Valentin V Kochervinskii. Ferroelectricity of polymers based on vinylidene by: 5. Charles C Thomas Publisher, ٠١‏/٠١‏/١٩٩٣ - من الصفحات The purpose of this book is to present a synopsis of what is known about substances that have toxic properties injurious to the eyes, disturbing to vision, or affecting eyes in other unwanted [].

Genetic neuropathy This presents as an autosomal dominant disorder and may present as purely sensory or. tricresyl phosphate, is considered a change in formulation if the proportion of individual isomers in the TCP mixture is altered, but the 3%remainsun-changed.

However, as Mobil indicate, only the base stock esters have been modified over the past thirty or so years, suggesting that the mixture of iso-mers in TCP stock has not been changed. TOXICITY OF TRICRESYL PHOSPHATE OIL ADDITIVES. It has been well known since that TCP is a neurotoxin when the tri-ortho isomer (ToCP) was used to adulterate ethanol extracts of ginger and paralysed to individuals (Smith and Lillie, ; Parascandola, ).The metabolism and toxicity of TCP are discussed by: 7.

Key health and ecological effects (hazard) To identify effects on human health, national and international reports of data were reviewed and used to inform the health effects characterization in this assessment.

The important or ‘critical’ effects considered from exposure to TCP are effects on the adrenal cortex and ovary. Triorthocresyl phosphate is more toxic than other tricresyl phosphate isomers and readily absorbed through the skin. Avoid contact of triorthocresyl phosphate with eyes, skin, and. Triorthocresyl phosphate (TOCP) is the most commonly reported cause of toxic neuropathies among the organophosphorus esters.

72–74 TOCP is used as a lubricant in the plastic industry and as an aircraft engine oil. The toxicity of TOCP and other organophosphorus in the peripheral nerve are due.

Organophosphate poisoning is poisoning due to organophosphates (OPs). Organophosphates are used as insecticides, medications, and nerve agents. Symptoms include increased saliva and tear production, diarrhea, vomiting, small pupils, sweating, muscle tremors, and confusion. While onset of symptoms is often within minutes to hours, some symptoms can take weeks to : Organophosphates.

Tricresyl Phosphate. Formula: C 21 H 21 O 4 P; Molecular weight: ; CAS Registry Number: Information on this page: Phase change data; References; Notes; Data at other public NIST sites. Recently, risk assessments have recognized that some PFRs, such as tris (chloroethyl) phosphate and tris (2,3-dichloropropyl) phosphate, tri-n-butyl phosphate, triphenyl phosphate, and tricresyl phosphate (TCP) are carcinogenic, mutagenic, or neurotoxic (van der Veen et al.

; Wei et al. ).These results indicate that PFRs have a large impact on the environment, and Cited by: 1. n (TCP, TCF, tritolyl phosphate) (CH 3 C 6 H 4) 3 PO of the most important and earliest of all commercial plasticizers.

Also suitable for cellulosics, alkyds, and polystyrene. Like all other phosphate plasticizes, TCP imparts flame retardance and fungus resistance, even when used in amounts as low as 5% of the total plasticizer content. Tricresyl Phosphate. Formula: C 21 H 21 O 4 P; Molecular weight: ; CAS Registry Number: Information on this page: Notes; Other data available: Phase change data; Data at other public NIST sites.

Books Go Search EN Hello, Sign in Account & Lists Sign in Account & Lists Orders Try Prime Cart. Today's Deals Your Gift Cards Help Whole Foods Registry Sell Disability Customer Support. Books. Deactivation Effect of Tricresyl Phosphate (TCP) on Tribochemical Decomposition of Hydrocarbon Oil on a Nascent Steel Surface January Tribology Letters 33(1) TRICRESYL PHOSPHATE EXTRA PURE MSDS CAS-No.: MSDS SECTION 1: Identification of the substance/mixture and of the company/undertaking Product identifier Adverse physicochemical, human health and environmental effects No additional information available Label elements Labelling according to Regulation (EC) No.

/ SAFETY DATA SHEET Creation Date Jan Revision Date Jan Revision Number 6 1. Identification Product Name Tricresyl Phosphate (Technical) Cat No.: T CAS-No Synonyms Tricresyl phosphate Recommended Use Laboratory chemicals. Uses advised against Not for food, drug, pesticide or biocidal product use Details of the supplier of the safety.

- Tricresyl Phosphate (mixed isomers) - Similar structures search, synonyms, formulas, resource links, and other chemical information. Tricresyl phosphate is an isomeric mixture of phosphoric acid esters of cresols. It is an odourless and colourless oily liquid (molar mass g/mol, melting point –33°C).

Tricresyl phosphates were used as flame retardants and plasticisers in PVC, nitrocellulose and by: 1. THIS chapter reviews the physical and chemical properties, toxicokinetics, toxicological, epidemiological, and exposure data on tricresyl phosphate (TCP), an aromatic phosphate ester.

TCP is one of several aromatic phosphate esters used commercially as flame retardants and plasticizers. TCP was chosen as the representative aromatic phosphate ester flame retardant. Although, low relative humidity is not an air contaminant, it can affect passenger and crew comfort and health (Rayman ).

Low relative humidity may cause drying of the skin, mucous membranes, and conjunctivae in the latter case adding a risk for conjunctivitis with its symptoms of tearing and pain. PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books.

Citations may include links to full-text content from PubMed Central and publisher web sites. NTP. Tricresyl phosphate ().

Chemical Effects in Biological Systems (CEBS). Research Triangle Park, NC (USA): National Toxicology Program (NTP). Accessed http. INTERNATIONAL PROGRAMME ON CHEMICAL SAFETY ENVIRONMENTAL HEALTH CRITERIA TRICRESYL PHOSPHATE This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of the United Nations Environment Programme, the International Labour Organisation.

1. Ecotoxicol Environ Saf. Apr 13; doi: / [Epub ahead of print] Intestinal damage, neurotoxicity and biochemical responses caused by tris (2-chloroethyl) phosphate and Cited by: 7. Get this from a library.

The effects of acid passivation, tricresyl phosphate pre-soak, and UV/ozone treatment on the tribology of perfluoropolyether-lubricated C stainless steel couples. [Bradley A Shogrin; William R Jones; Pilar Herrera-Fierro; United States.

National Aeronautics and Space Administration.]. Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS numberWhether you call it Tritolyl Phosphate or Tricresyl Phosphate you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.

The effects of tricresyl phosphate on glass transition temperature (Tg) of polymers. PURE GOLD Winder and Balout indicated a range of toxicity amongst tricresyl phosphate (TCP) isomers.Posts about Tricresyl phosphate written by David Learmount.

An unpredicted jet engine design flaw means that all commercial airliners in service today – except one – technically fail to meet the regulatory standards for cabin air quality, according to a.

This brief review is not intended to provide a comprehensive review of the toxicology of OPs. For that, a number of excellent books and book chapters should be consulted (eg, Hayes, ; Krieger ; Gupta, ; Satoh and Gupta, ; Lotti, ; Vale and Lotti, ).Here, together with some basic considerations on the history and toxicology of Cited by: